GPT-5.1: OpenAI's Advanced Flagship Model with Adaptive Reasoning Capabilities
GPT-5.1 is OpenAI's latest general-purpose AI model featuring enhanced intelligence, improved conversational abilities, and adaptive reasoning technology. Available in two variants—GPT-5.1 Instant for everyday tasks and GPT-5.1 Thinking for complex reasoning—the model dynamically allocates computational effort based on task difficulty.
The model offers a 400,000 token context window with up to 128,000 max output tokens, delivering clearer explanations with reduced jargon. It demonstrates superior performance on technical benchmarks while maintaining faster response times, reducing time-to-first-token by up to 84% on enterprise document processing tasks.
Reasoning model
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