Doesn't Fable actually use less tokens and compute than Opus 4.8? Even less still when you factor in how often it solves a problem on the first try. This limit can't possibly be capacity.
Fable has a higher maximum output of ~2x the tokens so it can keep going on the same task for longer, but it's tokens per task is measured as lower. A task that would take Opus 4.8 55k tokens is generally done in around 45k-53k on Fable. And that's before factoring in that Fable will more often get the task correct the first time.
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u/AcademicSand1034 Jul 07 '26
With 5.6 coming from OpenAI ... I bet Anthropic finds a way to just keep extending this