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 ke ✦ AI generated
Anthropic pushed back the cutoff date for Fable 5 availability on paid Claude plans, and kept the boosted Claude Code rate limits, until July 19.
Anthropic: 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.
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The author explains Anthropic's original reasoning for limiting Fable access was uncertainty about compute capacity and demand.
Author: 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.
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The author argues Anthropic should stop the pattern of repeated temporary extensions and just commit to permanent Fable availability.
Author: At this point I think Anthropic should change track and keep Fable permanently available on those plans.
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In contrast to Anthropic, OpenAI appears confident it can offer GPT-5.6 without similar access restrictions.
Author: OpenAI appear confident that they won't need to restrict access to GPT-5.6 in the same way.
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The author claims the ongoing uncertainty about Fable's availability is itself driving users toward OpenAI, independent of model quality.
Author: OpenAI are winning users simply due to the uncertainty that surrounds Fable access.
The mechanism for accessing Fable 5 caps it at half the weekly usage allowance before requiring credits or a model switch.
Anthropic: 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.
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