A post estimates Claude Fable 5 at 14.5 trillion total parameters
imjustnewatai · x · 2026-07-26
Speculation puts Claude Fable 5 at roughly 14.5 trillion total parameters
The post argues that Claude Fable 5 may have around 14.5T total parameters and 800B active parameters per token.
The reasoning
- It cites a reported claim from DeepSeek founder Liang Wenfeng that a top U.S. model activates about 800B parameters per token.
- The author infers the model may already have finished training before that remark, because Fable launched only 20 days later.
- Using DeepSeek-V3 as a reference point, the post estimates an MoE-style ratio of roughly 18.1 total parameters per active parameter.
- Applying that ratio to 800B active parameters yields an estimate of about 14.5T total parameters.
The post is explicit that this is an estimate, not a leak, and concludes that Fable 5 could be the largest completed AI model on Earth if the theory is right.
Related event: Claude Fable 5 Estimated to Have 14.5 Trillion Parameters(2 posts)→
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