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openaiOpenAI: GPT-5.1-Codex-Mini
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
openai/gpt-5.1-codex-mini
Context Size
400K
Input Price
37,500 pts/M
Output Price
300,000 pts/M
Architecture
Image
Text
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools
Details
TokenizerGPT
Max Completion100,000 tokens
Provider Context400K tokens
ModeratedYes
CreatedNov 13, 2025