Anthropic 再次延长 Claude Max 计划中 Fable 5 的可用时间
Fable gets another bump
Anthropic 再次延长了 Claude Fable 5 在 Claude Max 计划中的可用时间。所有付费计划用户对 Fable 5 的访问权限将延长至 7 月 19 日，同时 Claude Code 的周速率限制保持 50% 更高。用户每周最多可将一半的使用额度用于 Fable 5，超出部分可使用积分继续使用，或切换其他模型。Anthropic 最初因计算资源限制而采取此措施，旨在评估需求与算力可用性。相比之下，OpenAI 似乎对 GPT-5.6 的访问限制更有信心。作者认为 Anthropic 应永久保留 Fable 5 的访问权限，因为围绕其可用性的不确定性正在使用户流向 OpenAI。
Simon Willison’s Weblog
12th July 2026
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. Here's Thibault Sottiaux this morning:
The last 48 hours of Codex and ChatGPT Work have been intense! Three important updates:
- Temporarily removing the 5 hour usage limit restriction for all Plus, Business and Pro plans
- Rolling out changes that will make GPT 5.6 Sol more efficient across the board and that will be reflected in less usage being used so that it can take you further. Exact impact to be quantified and shared
- We hit 6M active users, and are landing a usage reset in the next hour
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.
12th July 2026
来源：Simon Willison 博客 · simonwillison.net