Anthropic's "reasoning_extraction" false flags burn half a user's weekly limits
marcandreewolf · reddit · 2026-10-01
A 4-year LLM veteran reports being falsely blocked three times by Anthropic's "reasoningextraction" guardrail while using Claude (Opus 5.5 Extra and Sonnet 5.5 Max) to analyze technical documents for a legislative public consultation. His prompts contained nothing about revealing internal reasoning.
- A separate analytical task with a very different prompt was also blocked
- The false positives cost him half his weekly limits, $15 in extra credits, and significant time
- He flagged the issue to Anthropic multiple times with no response
- He understands the need to block systematic extraction/distillation but says something is broken, and is restarting the work with GPT-6 Pro
The post highlights how guardrail false positives impose real costs on heavy paying users, and the author is asking for workarounds.
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