Fable 5.1 and Mythos 5.1 are based on the same underlying model.
Fable 5.1 and Mythos 5.1 are based on the same underlying model. The main difference lies in the strictness of the security protection mechanism and qualifications. Fable 5.1 adds stricter cybersecurity and life sciences security restrictions and is open to Pro, Max, Team, Enterprise users, and API and cloud platforms; while Mythos 5.1 is available to audited professional organizations and is only available to a…
Building custom evals shouldn't be hard or take forever
You can use our plugin + MCP to create a full eval set, then run it across treatments, models, or agent harnesses you care about we tried with firecrawl. we wanted to understand how well their MCP behaves and the lift it
Claude Opus 5 is crazy for web design.
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Fable 5.1 is now available in Cursor - it takes the top spot on CursorBench.
Updated scores: 1. Fable 5.1 Max: 73.4% 2. Fable 5.1 Extra High: 72.8% 3. Grok 4.6 Extra High: 70.8% 4. Fable 5 Max: 70.5% 5. Opus 5 Max: 70.0% 6. Grok 4.6 High: 69.9% 7. Fable 5.1 High: 69.4% 8. Opus 5
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