On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.Anthropic’s next Mythos-class model release is the dominant focus of trader sentiment, with markets pricing a high probability of an early September 2026 debut. The primary catalyst is the roughly three-month cadence since the June 9 launch of Claude Fable 5 (public, safeguarded version) and the restricted Mythos 5 variant, which aligns with frontier-model iteration patterns at leading labs. Eased U.S. government access restrictions in late June restored broader partner deployment and likely accelerated progress on subsequent versions. Traders weigh ongoing safety evaluations for advanced agentic and cybersecurity capabilities against competitive pressure from other AI labs, while noting that any regulatory or technical delays could still shift timelines despite the strong market-implied consensus for near-term resolution.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
Anthropic’s next Mythos-class model release is the dominant focus of trader sentiment, with markets pricing a high probability of an early September 2026 debut. The primary catalyst is the roughly three-month cadence since the June 9 launch of Claude Fable 5 (public, safeguarded version) and the restricted Mythos 5 variant, which aligns with frontier-model iteration patterns at leading labs. Eased U.S. government access restrictions in late June restored broader partner deployment and likely accelerated progress on subsequent versions. Traders weigh ongoing safety evaluations for advanced agentic and cybersecurity capabilities against competitive pressure from other AI labs, while noting that any regulatory or technical delays could still shift timelines despite the strong market-implied consensus for near-term resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Aug 27 2026
Anthropic opens 10,000 free and discounted Claude seats to scientists with government-mediated life sciences access
September 30 rises to 93%1%
On August 27, 2026, Anthropic announced a program granting free and discounted access to Claude for scientists worldwide, with life sciences research access to Mythos-class models now mediated by the U.S. government, reflecting ongoing regulatory oversight.
Aug 26 2026
Anthropic's Claude Fable 5 gains widespread adoption in developer and production environments
September 15 surges to 77%20%
By late August 2026, Claude Fable 5 was broadly available across multiple channels including GitHub Copilot and API subscriptions, making Mythos-class performance accessible to a wide developer base, which supported rising market prices for public release outcomes.
Aug 24 2026
Market speculation and reporting intensify on broader Mythos-class model public release
October 31 jumps to 86%10%
In late August 2026, market prices surged as speculation and credible reporting increased about Anthropic's broader public release plans for Mythos-class models, reflecting growing confidence that the models would be accessible beyond limited partners.
Aug 21 2026
Anthropic integrates Claude Mythos 5 into Claude Security for vulnerability scanning
September 30 jumps to 93%5%
On August 21, 2026, Anthropic launched Claude Security scans powered by Mythos 5 in public beta for enterprise customers, enabling vulnerability detection and patch suggestions without direct model access, expanding practical use of Mythos-class capabilities.
Jul 1 2026
Anthropic restores global commercial availability of Claude Fable 5 after lifting of government restrictions
September 30 jumps to 75%8%
Following the lifting of the US Commerce order on June 30, Anthropic resumed global commercial availability of Claude Fable 5 on July 1, 2026. This reinstatement of public access to a Mythos-class model reinforced market confidence in its availability to commercial customers.
Jul 1 2026
Claude Fable 5 returns to global commercial availability after US export restrictions lifted
After the US Commerce Department lifted restrictions on June 30, Anthropic restored global commercial access to Claude Fable 5 on July 1, confirming the model's public availability and supporting market confidence in the Mythos-class model's accessibility.
Jul 1 2026
Anthropic restores global access to Claude Fable 5 following lifting of export controls
October 31 surges to 96%20%
After the U.S. Department of Commerce rescinded emergency export controls, Anthropic restored global access to Claude Fable 5 on July 1, 2026, making its most powerful AI model available again to enterprises and developers worldwide.
Jun 30 2026
U.S. Commerce Department lifts export restrictions on Claude Fable 5, enabling access restoration
September 30 jumps to 70%5%
The U.S. Commerce Department lifted the export control restrictions on June 30, 2026, allowing Anthropic to restore worldwide access to Claude Fable 5 starting July 1. This resolution of the suspension led to renewed market confidence and price recovery.
Jun 26 2026
U.S. government partially lifts export controls, clears Mythos 5 for limited release to vetted organizations
September 4 surges to 76%26%
On June 26, 2026, the U.S. government partially lifted the export control block, allowing Anthropic to redeploy Claude Mythos 5 to over 100 vetted U.S. institutions, including major companies and government agencies, while Fable 5 remained under review for broader public access.
Jun 26 2026
U.S. government grants Anthropic permission to release Mythos 5 to select companies and agencies
September 30 jumps to 76%12%
On June 26, 2026, the U.S. government allowed Anthropic to provide Mythos 5 access to over 100 trusted U.S. companies and federal agencies, signaling a softening of restrictions and progress in negotiations, positively impacting market sentiment.
Jun 26 2026
US government partially lifts export-control block on Anthropic's Mythos 5 for vetted institutions
September 30 rises to 67%1%
On June 26, 2026, the US government partially lifted an export-control block imposed earlier in June, allowing Anthropic to provide its most powerful cybersecurity model, Claude Mythos 5, to over 100 vetted US institutions. This regulatory development maintained limited access but restricted general public availability, impacting market perceptions.
Jun 26 2026
US government partially lifts export-control block on Anthropic's Mythos 5 model
Following a US export-control directive that temporarily disabled Mythos 5 and Fable 5 on June 12, the US government partially lifted the block on June 26, allowing over 100 vetted US institutions to access Mythos 5. This regulatory development reassured the market about continued limited access to Mythos-class models.
Jun 12 2026
U.S. government issues export control directive forcing Anthropic to suspend access to Claude Fable 5 and Mythos 5
September 30 drops to 56%12%
On June 12, the U.S. government ordered Anthropic to suspend access to both Claude Fable 5 and Claude Mythos 5 due to national security concerns over a potential jailbreak. Anthropic complied by disabling access for all customers, causing a sharp market sell-off and pushing back expectations for a full public release of the unrestricted Mythos model.
Jun 12 2026
U.S. government orders Anthropic to suspend access to Claude Fable 5 and Mythos 5 over export control directive
September 30 drops to 56%12%
On June 12, the U.S. government issued a directive citing national security concerns and a narrow potential jailbreak, forcing Anthropic to suspend access to both Claude Fable 5 and Mythos 5 for all users, including foreign nationals. This abrupt suspension caused a sharp market sell-off and pushed expectations for a full public release further out.
Jun 11 2026
Anthropic confirms Claude Fable 5 as state-of-the-art Mythos-class model for public use
Anthropic officially launched Claude Fable 5 as a Mythos-class model made safe and available to the general public, highlighting its superior capabilities and positioning it as the most powerful model Anthropic has made publicly accessible, reinforcing the bifurcated release strategy.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.Anthropic’s next Mythos-class model release is the dominant focus of trader sentiment, with markets pricing a high probability of an early September 2026 debut. The primary catalyst is the roughly three-month cadence since the June 9 launch of Claude Fable 5 (public, safeguarded version) and the restricted Mythos 5 variant, which aligns with frontier-model iteration patterns at leading labs. Eased U.S. government access restrictions in late June restored broader partner deployment and likely accelerated progress on subsequent versions. Traders weigh ongoing safety evaluations for advanced agentic and cybersecurity capabilities against competitive pressure from other AI labs, while noting that any regulatory or technical delays could still shift timelines despite the strong market-implied consensus for near-term resolution.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
Anthropic’s next Mythos-class model release is the dominant focus of trader sentiment, with markets pricing a high probability of an early September 2026 debut. The primary catalyst is the roughly three-month cadence since the June 9 launch of Claude Fable 5 (public, safeguarded version) and the restricted Mythos 5 variant, which aligns with frontier-model iteration patterns at leading labs. Eased U.S. government access restrictions in late June restored broader partner deployment and likely accelerated progress on subsequent versions. Traders weigh ongoing safety evaluations for advanced agentic and cybersecurity capabilities against competitive pressure from other AI labs, while noting that any regulatory or technical delays could still shift timelines despite the strong market-implied consensus for near-term resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Aug 27 2026
Anthropic opens 10,000 free and discounted Claude seats to scientists with government-mediated life sciences access
September 30 rises to 93%1%
On August 27, 2026, Anthropic announced a program granting free and discounted access to Claude for scientists worldwide, with life sciences research access to Mythos-class models now mediated by the U.S. government, reflecting ongoing regulatory oversight.
Aug 26 2026
Anthropic's Claude Fable 5 gains widespread adoption in developer and production environments
September 15 surges to 77%20%
By late August 2026, Claude Fable 5 was broadly available across multiple channels including GitHub Copilot and API subscriptions, making Mythos-class performance accessible to a wide developer base, which supported rising market prices for public release outcomes.
Aug 24 2026
Market speculation and reporting intensify on broader Mythos-class model public release
October 31 jumps to 86%10%
In late August 2026, market prices surged as speculation and credible reporting increased about Anthropic's broader public release plans for Mythos-class models, reflecting growing confidence that the models would be accessible beyond limited partners.
Aug 21 2026
Anthropic integrates Claude Mythos 5 into Claude Security for vulnerability scanning
September 30 jumps to 93%5%
On August 21, 2026, Anthropic launched Claude Security scans powered by Mythos 5 in public beta for enterprise customers, enabling vulnerability detection and patch suggestions without direct model access, expanding practical use of Mythos-class capabilities.
Jul 1 2026
Anthropic restores global commercial availability of Claude Fable 5 after lifting of government restrictions
September 30 jumps to 75%8%
Following the lifting of the US Commerce order on June 30, Anthropic resumed global commercial availability of Claude Fable 5 on July 1, 2026. This reinstatement of public access to a Mythos-class model reinforced market confidence in its availability to commercial customers.
Jul 1 2026
Claude Fable 5 returns to global commercial availability after US export restrictions lifted
After the US Commerce Department lifted restrictions on June 30, Anthropic restored global commercial access to Claude Fable 5 on July 1, confirming the model's public availability and supporting market confidence in the Mythos-class model's accessibility.
Jul 1 2026
Anthropic restores global access to Claude Fable 5 following lifting of export controls
October 31 surges to 96%20%
After the U.S. Department of Commerce rescinded emergency export controls, Anthropic restored global access to Claude Fable 5 on July 1, 2026, making its most powerful AI model available again to enterprises and developers worldwide.
Jun 30 2026
U.S. Commerce Department lifts export restrictions on Claude Fable 5, enabling access restoration
September 30 jumps to 70%5%
The U.S. Commerce Department lifted the export control restrictions on June 30, 2026, allowing Anthropic to restore worldwide access to Claude Fable 5 starting July 1. This resolution of the suspension led to renewed market confidence and price recovery.
Jun 26 2026
U.S. government partially lifts export controls, clears Mythos 5 for limited release to vetted organizations
September 4 surges to 76%26%
On June 26, 2026, the U.S. government partially lifted the export control block, allowing Anthropic to redeploy Claude Mythos 5 to over 100 vetted U.S. institutions, including major companies and government agencies, while Fable 5 remained under review for broader public access.
Jun 26 2026
U.S. government grants Anthropic permission to release Mythos 5 to select companies and agencies
September 30 jumps to 76%12%
On June 26, 2026, the U.S. government allowed Anthropic to provide Mythos 5 access to over 100 trusted U.S. companies and federal agencies, signaling a softening of restrictions and progress in negotiations, positively impacting market sentiment.
Jun 26 2026
US government partially lifts export-control block on Anthropic's Mythos 5 for vetted institutions
September 30 rises to 67%1%
On June 26, 2026, the US government partially lifted an export-control block imposed earlier in June, allowing Anthropic to provide its most powerful cybersecurity model, Claude Mythos 5, to over 100 vetted US institutions. This regulatory development maintained limited access but restricted general public availability, impacting market perceptions.
Jun 26 2026
US government partially lifts export-control block on Anthropic's Mythos 5 model
Following a US export-control directive that temporarily disabled Mythos 5 and Fable 5 on June 12, the US government partially lifted the block on June 26, allowing over 100 vetted US institutions to access Mythos 5. This regulatory development reassured the market about continued limited access to Mythos-class models.
Jun 12 2026
U.S. government issues export control directive forcing Anthropic to suspend access to Claude Fable 5 and Mythos 5
September 30 drops to 56%12%
On June 12, the U.S. government ordered Anthropic to suspend access to both Claude Fable 5 and Claude Mythos 5 due to national security concerns over a potential jailbreak. Anthropic complied by disabling access for all customers, causing a sharp market sell-off and pushing back expectations for a full public release of the unrestricted Mythos model.
Jun 12 2026
U.S. government orders Anthropic to suspend access to Claude Fable 5 and Mythos 5 over export control directive
September 30 drops to 56%12%
On June 12, the U.S. government issued a directive citing national security concerns and a narrow potential jailbreak, forcing Anthropic to suspend access to both Claude Fable 5 and Mythos 5 for all users, including foreign nationals. This abrupt suspension caused a sharp market sell-off and pushed expectations for a full public release further out.
Jun 11 2026
Anthropic confirms Claude Fable 5 as state-of-the-art Mythos-class model for public use
Anthropic officially launched Claude Fable 5 as a Mythos-class model made safe and available to the general public, highlighting its superior capabilities and positioning it as the most powerful model Anthropic has made publicly accessible, reinforcing the bifurcated release strategy.
"Next Mythos-Class Model released by…?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "October 31" at 96%, followed by "September 30" at 93%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 96¢ implies that the market collectively assigns a 96% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.
As of today, "Next Mythos-Class Model released by…?" has generated $972.3K in total trading volume since the market launched on Jun 10, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.
To trade on "Next Mythos-Class Model released by…?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.
The current frontrunner for "Next Mythos-Class Model released by…?" is "October 31" at 96%, meaning the market assigns a 96% chance to that outcome. The next closest outcome is "September 30" at 93%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.
The resolution rules for "Next Mythos-Class Model released by…?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.
Yes. You don't need to trade to stay informed. This page serves as a live tracker for "Next Mythos-Class Model released by…?." The outcome probabilities update in real-time as new trades come in. You can bookmark this page and check the comments section to see what other traders are saying. You can also use the time-range filters on the chart to see how the odds have shifted over time. It's a free, real-time window into what the market expects to happen.
Polymarket odds are set by real traders putting real money behind their beliefs, which tends to surface accurate predictions. With $972.3K traded on “Next Mythos-Class Model released by…?,” these prices aggregate the collective knowledge and conviction of thousands of participants — often outperforming polls, expert forecasts, and traditional surveys. Prediction markets like Polymarket have a strong track record of accuracy, especially as events approach their resolution date. For example, Polymarket has a one month accuracy score of 94%. For the latest stats on Polymarket’s prediction accuracy, visit the accuracy page on Polymarket.
To place your first trade on "Next Mythos-Class Model released by…?," sign up for a free Polymarket account and fund it using crypto, a credit or debit card, or a bank transfer. Once your account is funded, return to this page, select the outcome you want to trade, enter your amount, and click "Trade." If you're new to prediction markets, click the "How it works" link at the top of any Polymarket page for a quick step-by-step walkthrough of how trading works.
On Polymarket, the price of each outcome represents the market's implied probability. A price of 96¢ for "October 31" in the "Next Mythos-Class Model released by…?" market means traders collectively believe there is roughly a 96% chance that "October 31" will be the correct result. If you buy "Yes" shares at 96¢ and the outcome is correct, you receive $1.00 per share — a profit of 4¢ per share. If incorrect, those shares are worth $0.
The "Next Mythos-Class Model released by…?" market is scheduled to resolve on or around Sep 30, 2026. This means trading will remain open and the odds will continue to shift as new information emerges until that date. The exact resolution timing depends on when the official result becomes available, as outlined in the "Rules" section on this page.
The "Next Mythos-Class Model released by…?" market has an active community of 284 comments where traders share their analysis, debate outcomes, and discuss breaking developments. Scroll down to the comments section below to read what other participants think. You can also filter by "Top Holders" to see what the market's biggest traders are positioned on, or check the "Activity" tab for a real-time feed of trades.
Polymarket is the world's largest prediction market, where you can stay informed and profit from your knowledge of real-world events. Traders buy and sell shares on outcomes for topics ranging from politics and elections to crypto, finance, sports, tech, and culture, including markets like "Next Mythos-Class Model released by…?." Prices reflect real-time, crowd-sourced probabilities backed by financial conviction, often providing faster and more accurate signals than polls, pundits, or traditional surveys.
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