Anthropic releases Claude Fable 5.2 and Mythos 5.2
Anthropic launched Claude Fable 5.2 and Mythos 5.2, built on the same underlying model with major gains in coding, reasoning, and science, faster and cheaper output, and a 30-hour formal proof of Fermat's Last Theorem; Fable ships with safety guardrails for all users while Mythos requires stricter eligibility.
2026-11-12 ~ 2026-11-14 · 2 related posts
- Episode 1: Unverified Leaks Claim Anthropic Released Claude Fable 5.2 and Mythos 5.2(2026-11-10, 22 posts)
- Episode 2: Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Faster, Cheaper, Claimed to Beat Opus 5.5(2026-11-10, 176 posts)
- Episode 3: Shumer Reviews Fable 5.2: Smartest Model Ever, But Heavy Guardrails(2026-11-10, 3 posts)
- Episode 4: Matthew Berman's Claude Fable 5.2 Field Test: "Just Solved Software"(2026-11-10, 8 posts)
- Episode 5: Anthropic Offers Claude Pro Users Free Trial of Fable 5.2 Until Nov 16(2026-11-10, 3 posts)
- Episode 6: Claude Fable 5.2 Tops LiveBench but Cost Concerns Emerge(2026-11-10, 3 posts)
- Episode 7: Claude Fable 5.2 Lands on Perplexity, Sets WANDR Benchmark Record(2026-11-10, 3 posts)
- Episode 8: Matthew Berman Calls Fable 5.2 the Best Model on Earth After 100B-Token Test(2026-11-10, 3 posts)
- Episode 9: Claude Fable 5.2 Sets New Record on ARC-AGI-3(2026-11-10, 2 posts)
- Episode 10: Over 90% of merged changes in Anthropic's core codebase now written by Claude(2026-11-10, 2 posts)
- Episode 11: Claude Fable 5.2 Tops Artificial Analysis Intelligence Index as Cost Concerns Emerge(2026-11-10, 14 posts)
- Episode 12: METR Files Confirm Fable 5.2 Is "Model 3"; Stronger Unreleased Model May Exist(2026-11-10, 4 posts)
- Episode 13: Fable 5.2 Not Yet Available in Claude Code(2026-11-10, 2 posts)
- Episode 14: Claude Fable 5.2 Sets Epoch ECI Record at 174, Anthropic Overtakes OpenAI First Time in Four Years(2026-11-10, 8 posts)
- Episode 15: Fable 5.2 Sparks Creation Wave: Code-Driven Video, Games and Music(2026-11-10, 47 posts)
- Episode 16: Leaked Anthropic Table Suggests Internal Model Outscores Released Claude Models(2026-11-10, 4 posts)
- Episode 17: Claude Fable 5.2 Tops WebDev Arena While Getting Faster and Cheaper(2026-11-10, 2 posts)
- Episode 18: Fable 5.2 'Elegantly Kills the Competition,' Users Say(2026-11-10, 3 posts)
- Episode 19: Within 24 Hours of Claude Fable 5.2's Release, Users Build Games and 3D Worlds(2026-11-11, 3 posts)
- Episode 20: Anthropic releases Claude Fable 5.2 and Mythos 5.2(2026-11-12, 2 posts)
- Anthropic ships Claude Fable 5.2 and Mythos 5.2, formalized Fermat's Last Theorem in 30 hours — FinanceYF5 · 2026-11-12
1 near-duplicate retellings: dl_weekly