**Anthropic’s Mythos-class models represent the company’s most advanced tier, optimized for complex reasoning, agentic tasks, cybersecurity, and specialized research, with restricted access versions like Mythos 5 and broader releases like Fable 5 sharing the same base architecture but differing in safeguards.** Recent verified performance on Humanity’s Last Exam (HLE), the expert-authored 2,500-question benchmark testing graduate-level multi-step reasoning across disciplines, shows Claude Fable 5.1 and Mythos 5.1 leading the leaderboard at 65% accuracy as of September 1, 2026, closely followed by prior Mythos/Opus variants near 64.5–64.7%. This positions the next qualifying Mythos-class model (any future release officially described as Mythos-class or including “Mythos” or “Fable” in its name) to debut on the official leaderboard at agi.safe.ai with strong implied probabilities for thresholds in the mid-60s range, reflecting incremental gains from scaling, architectural refinements, and extended reasoning techniques rather than dramatic leaps. Trader sentiment factors in Anthropic’s recent cadence—major Mythos/Fable updates in June and early September 2026—alongside competitive pressure from models like GPT-5.4 Pro and Gemini variants, while noting risks of delays from safety evaluations, regulatory scrutiny on dual-use capabilities, or compute constraints. Key upcoming catalysts include potential late-2026 releases, new leaderboard updates, and any official Anthropic announcements on model timelines or HLE configurations (tool-assisted vs. closed-book). Market-implied odds currently price high confidence in solid but not revolutionary debuts, consistent with the benchmark’s design to resist rapid saturation.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoPróximo Modelo Mythos-Class: A Estreia do Último Exame da Humanidade?
Próximo Modelo Mythos-Class: A Estreia do Último Exame da Humanidade?
NOVO
$11,221 Vol.
31 dez 2026
45%+
97%
50%+
95%
55%+
55%
60%+
8%
$11,221 Vol.
45%+
$2,146 Vol.
97%
50%+
$3,449 Vol.
95%
55%+
$2,123 Vol.
55%
60%+
$3,503 Vol.
8%
This market will resolve to "Yes" if the next Anthropic Mythos-class model added to the Humanity's Last Exam results at https://agi.safe.ai/ has an HLE Accuracy of at least the specified percentage at 12:00 PM ET on the calendar date following the date on which it first appears on the site. Otherwise, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".**Anthropic’s Mythos-class models represent the company’s most advanced tier, optimized for complex reasoning, agentic tasks, cybersecurity, and specialized research, with restricted access versions like Mythos 5 and broader releases like Fable 5 sharing the same base architecture but differing in safeguards.**
Recent verified performance on Humanity’s Last Exam (HLE), the expert-authored 2,500-question benchmark testing graduate-level multi-step reasoning across disciplines, shows Claude Fable 5.1 and Mythos 5.1 leading the leaderboard at 65% accuracy as of September 1, 2026, closely followed by prior Mythos/Opus variants near 64.5–64.7%. This positions the next qualifying Mythos-class model (any future release officially described as Mythos-class or including “Mythos” or “Fable” in its name) to debut on the official leaderboard at agi.safe.ai with strong implied probabilities for thresholds in the mid-60s range, reflecting incremental gains from scaling, architectural refinements, and extended reasoning techniques rather than dramatic leaps.
Trader sentiment factors in Anthropic’s recent cadence—major Mythos/Fable updates in June and early September 2026—alongside competitive pressure from models like GPT-5.4 Pro and Gemini variants, while noting risks of delays from safety evaluations, regulatory scrutiny on dual-use capabilities, or compute constraints. Key upcoming catalysts include potential late-2026 releases, new leaderboard updates, and any official Anthropic announcements on model timelines or HLE configurations (tool-assisted vs. closed-book). Market-implied odds currently price high confidence in solid but not revolutionary debuts, consistent with the benchmark’s design to resist rapid saturation.
This market will resolve to "Yes" if the next Anthropic Mythos-class model added to the Humanity's Last Exam results at https://agi.safe.ai/ has an HLE Accuracy of at least the specified percentage at 12:00 PM ET on the calendar date following the date on which it first appears on the site. Otherwise, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".
Mercado Aberto: Sep 1, 2026, 11:31 AM ET
Volume
$11,221Data de Término
31 dez 2026Mercado Aberto
Sep 1, 2026, 11:31 AM ETFonte de resolução
https://agi.safe.ai/Resolver
0x65070BE91...This market will resolve to "Yes" if the next Anthropic Mythos-class model added to the Humanity's Last Exam results at https://agi.safe.ai/ has an HLE Accuracy of at least the specified percentage at 12:00 PM ET on the calendar date following the date on which it first appears on the site. Otherwise, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".**Anthropic’s Mythos-class models represent the company’s most advanced tier, optimized for complex reasoning, agentic tasks, cybersecurity, and specialized research, with restricted access versions like Mythos 5 and broader releases like Fable 5 sharing the same base architecture but differing in safeguards.**
Recent verified performance on Humanity’s Last Exam (HLE), the expert-authored 2,500-question benchmark testing graduate-level multi-step reasoning across disciplines, shows Claude Fable 5.1 and Mythos 5.1 leading the leaderboard at 65% accuracy as of September 1, 2026, closely followed by prior Mythos/Opus variants near 64.5–64.7%. This positions the next qualifying Mythos-class model (any future release officially described as Mythos-class or including “Mythos” or “Fable” in its name) to debut on the official leaderboard at agi.safe.ai with strong implied probabilities for thresholds in the mid-60s range, reflecting incremental gains from scaling, architectural refinements, and extended reasoning techniques rather than dramatic leaps.
Trader sentiment factors in Anthropic’s recent cadence—major Mythos/Fable updates in June and early September 2026—alongside competitive pressure from models like GPT-5.4 Pro and Gemini variants, while noting risks of delays from safety evaluations, regulatory scrutiny on dual-use capabilities, or compute constraints. Key upcoming catalysts include potential late-2026 releases, new leaderboard updates, and any official Anthropic announcements on model timelines or HLE configurations (tool-assisted vs. closed-book). Market-implied odds currently price high confidence in solid but not revolutionary debuts, consistent with the benchmark’s design to resist rapid saturation.
This market will resolve to "Yes" if the next Anthropic Mythos-class model added to the Humanity's Last Exam results at https://agi.safe.ai/ has an HLE Accuracy of at least the specified percentage at 12:00 PM ET on the calendar date following the date on which it first appears on the site. Otherwise, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".
Any model whose official name includes "Mythos," or "Fable" (e.g., Claude Fable 5.1 or Claude Fable 6), or that Anthropic officially describes as a "Mythos-class" model or similar, will qualify for this market's resolution. Anthropic's other model tiers, such as Opus, Sonnet, or Haiku, will not qualify.
The percentage displayed as "HLE Accuracy" for the model in its result card on the "AI Progress on Humanity's Last Exam" chart at https://agi.safe.ai/ will be used to resolve this market. This market will resolve solely based on the displayed HLE Accuracy, regardless of the model's Calibration Error, chart position, other configuration scores, or any underlying granular or unrounded data presented elsewhere.
If multiple qualifying models are added to the Humanity's Last Exam results on the same calendar date (ET), the model with the highest HLE Accuracy will be used for resolution. Models added to the results on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Humanity's Last Exam results but is subsequently removed and not re-added, such that it is not displayed on the site at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Humanity's Last Exam results.
A qualifying model must be newly added to the Humanity's Last Exam results at https://agi.safe.ai/. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the site is irrelevant for this market.
The resolution source for this market is the official Humanity's Last Exam website found at https://agi.safe.ai/. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the site, this market will resolve based on the first subsequent instance at which the model's HLE Accuracy becomes available on the site. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the site or if no qualifying model is added by December 31, 2026, 11:59 PM ET, this market will resolve to "No".
Volume
$11,221Data de Término
31 dez 2026Mercado Aberto
Sep 1, 2026, 11:31 AM ETFonte de resolução
https://agi.safe.ai/Resolver
0x65070BE91...**Anthropic’s Mythos-class models represent the company’s most advanced tier, optimized for complex reasoning, agentic tasks, cybersecurity, and specialized research, with restricted access versions like Mythos 5 and broader releases like Fable 5 sharing the same base architecture but differing in safeguards.** Recent verified performance on Humanity’s Last Exam (HLE), the expert-authored 2,500-question benchmark testing graduate-level multi-step reasoning across disciplines, shows Claude Fable 5.1 and Mythos 5.1 leading the leaderboard at 65% accuracy as of September 1, 2026, closely followed by prior Mythos/Opus variants near 64.5–64.7%. This positions the next qualifying Mythos-class model (any future release officially described as Mythos-class or including “Mythos” or “Fable” in its name) to debut on the official leaderboard at agi.safe.ai with strong implied probabilities for thresholds in the mid-60s range, reflecting incremental gains from scaling, architectural refinements, and extended reasoning techniques rather than dramatic leaps. Trader sentiment factors in Anthropic’s recent cadence—major Mythos/Fable updates in June and early September 2026—alongside competitive pressure from models like GPT-5.4 Pro and Gemini variants, while noting risks of delays from safety evaluations, regulatory scrutiny on dual-use capabilities, or compute constraints. Key upcoming catalysts include potential late-2026 releases, new leaderboard updates, and any official Anthropic announcements on model timelines or HLE configurations (tool-assisted vs. closed-book). Market-implied odds currently price high confidence in solid but not revolutionary debuts, consistent with the benchmark’s design to resist rapid saturation.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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