Benchable
Text input
Image input
Text output
Author's Description
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Key Specifications
Context
400K
Released
Nov 13, 2025
Supported Parameters
This model supports the following parameters:
Include Reasoning
Tool Choice
Stop
Structured Outputs
Logit Bias
Seed
Logprobs
Response Format
Presence Penalty
Reasoning
Max Tokens
Top Logprobs
Tools
Frequency Penalty
Features
This model supports the following features:
Tools
Reasoning
Response Format
Structured Outputs
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $1.5 |
| Completion | $6 |
| Input Cache Read | $0.375 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
OpenAI
|
OpenAI | openai/gpt-5.1-codex-mini-20251113 | 400K | $1.5 / 1M tokens | $6 / 1M tokens |
No benchmark execution results are available for this model yet.
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