GPT-5.1-Codex-Mini coding
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Capabilities
Context Window 400k tokens
Max Output 100k tokens
Inputs
Outputs
Pricing (per 1M tokens)
Input $0.25
Output $2.00
Cache Read $0.02
Cache Write -
Supported Parameters
include_reasoningmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools