Fable gets another bump

Anthropic has extended Claude Fable 5 access on all paid plans through July 19, citing compute constraints and the need to gauge demand. The company has repeatedly delayed Fable's removal from Claude Max plans, while OpenAI reportedly will not restrict GPT-5.6 access similarly. The uncertainty around Fable availability may be driving users to OpenAI.

One of the consequences of GPT-5.6 Sol being clearly a Fable/Mythos class model is that Anthropic have, once again, bumped the date https://x.com/claudeai/status/2076351399999557669 that Fable stops being available in their Claude Max plans: We're extending Claude Fable 5 access on all paid plans, as well as keeping Claude Code’s weekly rate limits 50% higher, through July 19. As before, you can use up to half of your weekly usage limit on Fable 5. After that, you can continue using Fable 5 with usage credits, or switch to another model to keep working within your remaining limits. Anthropic's original rationale for this was compute constraints - they wanted a better idea of both demand and compute availability before committing to keeping the new model cheap for subscribers. OpenAI appear confident that they won't need to restrict access to GPT-5.6 in the same way. At this point I think Anthropic should change track and keep Fable permanently available on those plans. OpenAI are winning users simply due to the uncertainty that surrounds Fable access. Tags: anthropic https://simonwillison.net/tags/anthropic , generative-ai https://simonwillison.net/tags/generative-ai , gpt https://simonwillison.net/tags/gpt , openai https://simonwillison.net/tags/openai , claude-mythos-fable https://simonwillison.net/tags/claude-mythos-fable , ai https://simonwillison.net/tags/ai , llms https://simonwillison.net/tags/llms