Fable 5 will divert coding to Opus 4.8 according to Anthropic
Summary
According to Anthropic, Fable 5 development will shift to using the Opus 4.8 AI model for coding tasks.
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@mattshumer_: So uh, Fable will be useless? Apparently coding work will fall back to Opus.
Anthropic announces redeployment of Claude Fable 5 with new classifiers to block cybersecurity tasks, potentially limiting routine coding and pushing users to Opus.
Anthropic releases Opus 5 with ‘close’ to Fable 5’s capabilities
Anthropic released Claude Opus 5, which it says approaches the capabilities of its more powerful Fable 5 model while offering stronger cybersecurity safeguards and lower pricing.
@PrajwalTomar_: Do this once Fable 5 is back tomorrow. Don't switch your whole stack on day one. Anthropic is bringing Fable 5 back wit…
Anthropic is redeploying Claude Fable 5 with stronger safety filters that may block harmless requests, causing fallback to Opus 4.8. Users are advised not to switch entirely on day one and to test real workflows first.
Anthropic launches Opus 5
Anthropic released Opus 5, a new version of its heavyweight model that is cheaper and less restrictive than Fable 5, and outperforms it on some benchmarks. The model also introduces lighter safeguards and a new Automatic Fallbacks feature for API users.
@0x_kaize: You can turn Opus 4.8 into Fable 5 for Free And you have 2 days before the window closes. July 7 is the last day Fable …
A thread explains that users can convert Opus 4.8 into Fable 5 for free before July 7, after which Fable 5 will cost credits. It provides tips for maximizing the remaining window, including having Fable 5 write a SKILL.md to transfer reasoning patterns to Opus 4.8.