Claude Fable 5.1
validasserted
- Valid from
- 2026-09-01
- Valid until
- still holds
- Published
- 2026-09-01
- Recorded by AsOf
- 2026-10-31
- Checked
- 2026-10-31 · its source page states the value and the date
- Confidence
- 0.70
Sources
“September 1, 2026 Claude Fable 5.1 and Claude Mythos 5.1 launch We just launched Claude Fable 5.1 and Claude Mythos 5.1, the world’s most advanced models for coding and knowledge work.”— what the page says, read 2026-10-31
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