Fable 5 in review: What the most expensive Anthropic model can do

▤ Summary

Anthropic is preparing to make Fable 5 generally available after a short test phase. The model includes built-in safeguards meant to block dangerous use cases such as zero-day research and bioweapon development. After the trial ends on June 22, Anthropic will charge separately by token instead of including the model in subscriptions, and the price will be about twice Claude Opus 4.8. The article also notes that selected organizations used the model earlier to test security weaknesses.

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