---
title: "Anthropic再次延长Claude Fable 5可用时间至7月19日，因GPT-5.6 Sol同为Fable/Mythos类模型"
source: "Simon Willison 博客（Atom）"
source_tier: "t2"
url: "https://simonwillison.net/2026/Jul/12/bump/#atom-everything"
permalink: "https://feed.astralor.com/items/itm_4ca3a7104e2d6ec3fc4ad670"
published: "2026-07-12T21:20:07.000Z"
score: 64
channel: "ai"
tags: ["Anthropic","Claude Fable 5","Fable/Mythos","GPT-5.6 Sol"]
---

# Anthropic再次延长Claude Fable 5可用时间至7月19日，因GPT-5.6 Sol同为Fable/Mythos类模型

## AI 点评

> 对于关注AI模型选择的用户来说，这条更新揭示了Anthropic与OpenAI的竞争策略差异，值得思考模型的长期可用性和成本。

## 速览

由于GPT-5.6 Sol被识别为Fable/Mythos类模型，Anthropic再次延长了Claude Fable 5在付费计划中的可用时间至7月19日。用户仍可在每周配额内免费使用一半，超出后需使用积分或切换模型。作者认为Anthropic应永久保留Fable以避免用户流失给OpenAI。

## 关键点

- 因为GPT-5.6 Sol是Fable/Mythos类模型，Anthropic再次延长Fable 5可用时间至7月19日。
- 用户每周可用一半配额免费使用Fable 5，超出部分使用积分或切换模型。
- OpenAI对GPT-5.6没有类似限制，作者认为Anthropic应永久保留Fable以保持竞争力。

## 全文

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

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引用前请核对原文;本文由星际流动整理:https://feed.astralor.com/items/itm_4ca3a7104e2d6ec3fc4ad670