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GPT-5.1 Thinking

GPT-5.1 Thinking

gpt-5.1-2025-11-13

Developer

Status

Released

ChatGPT removed

Details

Context: 400,000 tokens
Max output: 128,000 tokens
Knowledge cutoff: 2024-09-30
Inputs: Text, Image
Outputs: Text
Price: $1.25 in / $10 out
Tool use: Yes

Links

GPT-5.1 Thinking is a large language model by OpenAI.