Claude-Fable-5 screenshot shows OpenRouter blocking a benchmark answer

teortaxesTex · x · 2026-07-22

A Claude-Fable-5 screenshot shows OpenRouter blocking a benchmark prompt

The attached screenshot shows anthropic/claude-fable-5 answering a brokenArxiv benchmark prompt before OpenRouter cuts the response off with a safety-system error: content blocked by safety system, please modify and retry.

The post frames this as evidence that the model is producing something like “neuralese” or “grug speech” and jokingly asks whether it comes from distilling exfiltrated chain-of-thoughts or from convergence. It’s part model-behavior analysis, part safety-meme.

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