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GPT-5.1-Codex mini
openai/gpt-5.1-codex-mini
OrganizationOpenAI
FamilyGPT
Released2025-11-13
Context window400K
Max output128K
Modalities
ImageInputTextInputTextOutput
ProvidersPoe, NanoGPT, LLM Gateway, OpenCode Zen, Helicone, Neon, ZenMux, Azure Cognitive Services, Azure, AIHubMix, OrcaRouter, Requesty, Kilo Gateway, Vercel AI Gateway, OpenRouter, Jiekou.AI, OpenAI
WeightsClosed
Attachments
Native
Reasoning
Native
Parameters: reasoning, include_reasoning, reasoning_effort
Tool call
Native
Parameters: tools, tool_choice
Structured
Native
Parameters: structured_outputs, response_format
Temperature-
Open weight-
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