AI Toolbox11 min read
ChatGPT Context Window and Token Limits by Plan (2026)
ChatGPT's context window by plan as of September 2026: 27K on Free, 54K on Go and Plus, 128K on Pro for instant models, up to 400K for reasoning, 1.05...
By Adi LeviimAI Toolbox Blog
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Originally published by AI Toolbox Blog on Sep 9, 2026.
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