Claude 3.5 Sonnet Glitches When Context Limit Exceeded

Numerous-Recover7685 · reddit · 2026-07-31

A Reddit user reported an unusual context window issue with Claude 3.5 Sonnet. After exceeding the 200k token limit, the model failed to auto-compact and instead entered a loop insisting it was impossible. Strangely, while forgetting recent tokens, the model still remembered the very first message. This has sparked community discussion about context management mechanisms and potential bugs.

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