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  1. Prediction Markets
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  3. Which of the following will be true about the rumored “Claude Mythos”?
Manifold Markets

Which of the following will be true about the rumored “Claude Mythos”?

Foreign ExchangeAIOne-Off6mo
Manifold MarketsManifold MarketsNo KYC
Current community forecast
Manifold Markets
It will be called “Claude Mythos” on release 0%
Leader of 7 outcomes
Forecasters

49

Question type

multiple choice

Methodology

Play-money forecasting platform

Source type

Forecast

Market data

Updated 5 minutes ago

Mar 27, 26, 4:39 AMJan 1, 27, 5:29 AM

Trends

Outcome24hChance
Manifold Markets
It will be called “Claude Mythos” on release
0%
Manifold Markets
It will cost at least 3x more per output token than Claude Opus 4.6 currently does on the API
0%
Manifold Markets
It will cost at least 5x more per output token than Claude Opus 4.6 does per output token on the API
0%
Manifold Markets
It scores at least 50% on SWE-Apex (3rd party evaluation)
100%
Manifold Markets
It scores at least 55% on SWE-Apex (3rd party evaluation)
100%

Selected outcome

It will only be available on the max plan and/or the API1%

Rules

https://fortune.com/2026/03/26/anthropic-says-testing-mythos-powerful-new-ai-model-after-data-leak-reveals-its-existence-step-change-in-capabilities/

Manifold Markets
  • Resolves NA if no model that appears to be the one mentioned here is released by Anthropic by Jan 1, 2027
  • Update 2026-03-27 (PST) (AI summary of creator comment): - The API/max plan availability answer will resolve 30 days after release
  • All other answers will resolve after the model is released and relevant information is revealed
  • Update 2026-04-09 (PST) (AI summary of creator comment): "Model released" requires the model to be released to the public (not just limited access like Project Glasswing).
  • Update 2026-06-07 (PST) (AI summary of creator comment): A name like "Claude Mythos 5" (i.e., with a version number appended) would still count as being called "Claude Mythos" on release.

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Rules

https://fortune.com/2026/03/26/anthropic-says-testing-mythos-powerful-new-ai-model-after-data-leak-reveals-its-existence-step-change-in-capabilities/

Manifold Markets
  • Resolves NA if no model that appears to be the one mentioned here is released by Anthropic by Jan 1, 2027
  • Update 2026-03-27 (PST) (AI summary of creator comment): - The API/max plan availability answer will resolve 30 days after release
  • All other answers will resolve after the model is released and relevant information is revealed
  • Update 2026-04-09 (PST) (AI summary of creator comment): "Model released" requires the model to be released to the public (not just limited access like Project Glasswing).
  • Update 2026-06-07 (PST) (AI summary of creator comment): A name like "Claude Mythos 5" (i.e., with a version number appended) would still count as being called "Claude Mythos" on release.