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15•10/12/2026, 04:16•1 min read
OpenAI raises GPT-6.1 Sol context window to 500K tokens

Executive TL;DR30s read
OpenAI increased the default context window for GPT-6.1 Sol in Codex and ChatGPT Work from 272,000 to 500,000 tokens, with plans for further expansion.
OpenAI has raised the default context window for GPT-6.1 Sol in Codex and ChatGPT Work to 500,000 tokens.
Previously, the standard context window size was 272,000 tokens.
The company said the limit will be increased further in the future.
Why it matters
AnalysisA larger context window lets AI assistants retain more code, documentation, and conversation history at once, reducing the need for manual chunking or context compression.
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