GPT-5.1-Codex-Mini
by OpenAI
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Capabilities
Pricing
Input Tokens
Per 1M tokens
Free
Output Tokens
Per 1M tokens
Free
Image Processing
Per 1M tokens
$0.00/1M tokens
Supported Modalities
Input
image
text
Output
text
Performance Benchmarks
Intelligence Index
Overall intelligence score
38.0
Coding Index
Programming capability
35.0
Math Index
Mathematical reasoning
91.7
GPQA
Graduate-level questions
81.3%
MMLU Pro
Multitask language understanding
82.0%
HLE
Human-like evaluation
16.9%
LiveCodeBench
Real-world coding tasks
83.6%
AIME 2025
Advanced mathematics
91.7%
Specifications
- Context Length
- 400K tokens
- Provider
- OpenAI
- Throughput
- 159.684 tokens/s
- Released
- Nov 13, 2025
- Model ID
- openai/gpt-5.1-codex-mini
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