Anthropic may be 1.5 generations ahead internally, with Fable 5.1 weeks away
haider1 · x · 2026-07-29
- The post claims Anthropic may already be about 1.5 model generations ahead internally.
- It says Fable's base pre-training finished in February/March, suggesting the next iteration has likely been completed and another one has started training.
- Based on testing and government review, Fable 5.1 could launch within weeks, while 5.2/6 may only now be entering alpha.
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