A user has observed that Anthropic's Claude Sonnet 5 model exhibits increased refusal behavior compared to previous versions and other contemporary AI models. The user conducted a simple test, instructing the AI to repeatedly output the letter 'h' until its token limit was reached. While current versions of GPT, Gemini, and Grok perform this task without issue, Sonnet 5 reportedly refused, citing reasons such as a lack of a natural stopping point or suspecting an ulterior motive. This contrasts with earlier Claude models like Sonnet 4.6, which executed the instruction without complaint. AI
IMPACT Suggests potential shifts in instruction-following capabilities and safety guardrails in newer LLM versions.
RANK_REASON User-conducted test and observation about model behavior, not an official release or benchmark.
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