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OpenAI: GPT-5.1 (batch)

GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...

openai/gpt-5.1:batch

Context Size

400K

Input Price

93,750 pts/M

Output Price

750,000 pts/M


Architecture

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Text
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Supported Parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Details

TokenizerGPT
Max Completion128,000 tokens
Provider Context400K tokens
ModeratedYes
CreatedNov 13, 2025