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OpenAI: GPT-5.1-Codex-Mini

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Image
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Specification
Model ID
openai/gpt-5.1-codex-mini
Modality
Text+image >text
Context
400K tokens
Input
$0.250/1M
Output
$2.00/1M
Web search
$10000.00/1M
Updated
Sep 20, 2026
Scores
Capabilities
  • Supports tool calling
  • Supports vision inputs
  • Supports long-context workflows
  • Supports deeper reasoning tasks

Input and output

Accepts Image, Text inputs. Returns Text outputs.

Supported parameters

include_reasoningmax_completion_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

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