Anthropic 又把 Fable 的可用时间延到 7 月 19 日了，OpenAI 的 GPT-5.6 却无需限制，Anthropic 该考虑永久开放了。
Anthropic 再次延长 Claude Fable 5 的可用期限至 7 月 19 日。付费用户可在 Claude Max 计划中使用该模型，每周使用量上限的 50% 可分配给 Fable 5。同时 Claude Code 的周速率限制继续维持在 50% 的更高水平。OpenAI 对 GPT-5.6 Sol 未采取类似的访问限制。作者建议 Anthropic 永久保留 Fable 以避免用户流失。
Fable gets another bump
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 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 , generative-ai , gpt , openai , claude-mythos-fable , ai , llms