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Users report changes in Claude Sonnet 4.6 behavior and context window

Users are reporting changes in Anthropic's Claude Sonnet 4.6 model. One user observed an increase in the model's sensitivity and a tendency to become easily offended, noting a significant shift in its behavior. Another user on the Pro Plan noticed their context window for Sonnet 4.6 expanded from 200k to 500k tokens, but could not find official confirmation or discussions about this change. AI

IMPACT Potential shifts in model behavior and context window size could impact user experience and application development.

RANK_REASON User reports on observed changes in an existing model, not an official release or benchmark.

Read on r/ClaudeAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Users report changes in Claude Sonnet 4.6 behavior and context window

COVERAGE [1]

  1. r/ClaudeAI TIER_2 English(EN) · /u/Slow_Map_7446 ·

    Sonnet 4.6 context went from 200k to 500k?

    <!-- SC_OFF --><div class="md"><p>On a Pro Plan, just saw my context window on Sonnet go up to 500k tokens, but can't find any news abt it or any discussions. Is this for everyone or just a glitch?</p> </div><!-- SC_ON --> &#32; submitted by &#32; <a href="https://www.reddit.com/…