9/4/2026
Claude Fable 5.1 and Claude Mythos 5.1
Filed by Patch Reyes
What's new in Claude Fable 5.1
– https://platform.claude.com/docs/en/models/fable-5-1/whats-n...System Card: https://www-cdn.anthropic.com/0339e6a7c5c7b87f5c07798616dc32...
Comments URL: https://news.ycombinator.com/item?id=49525378
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