Context Window Strategy Differences: OpenAI vs Anthropic
PawelHuryn · x · 2026-07-20
Hacker News found that OpenAI quietly reduced GPT-5.6 Sol's max context window by 100k tokens (to 272k) in a code tool PR, labeling it a 'bug fix'.
In contrast, Anthropic took the opposite approach: retaining up to 1 million context window in Cowork, without providing a /compact compression command, instead restricting model usage itself.
Related event: OpenAI Quietly Cuts Codex Context Window to 272k Tokens(5 posts)→
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