
Quietly Downgrading the Model Is a Trust Problem|Fable 5 and Open Weights
In June 2026 Anthropic routed some Fable 5 requests to Opus 4.8. Safety was the stated reason. Buying one SKU and receiving another is still a procurement problem. That is why I side with Grok, some Chinese open-weight labs, and NVIDIA Nemotron.



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