GPT-5.1-Codex
Model
by OpenAI
Vendor:OpenAI
│Model Size:Unknown
│Context Window:400,000 tokens
│Max Output:128,000 tokens
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Specifications
Model Size
Unknown
Total Context
400.0K
Max Output
128.0K
Pricing
GlobalUSD
Input $1.25 / 1M tokens
Output $10.00 / 1M tokens
Cache read $0.125 / 1M tokens
Performance Benchmarks
Terminal Bench
60.4%
Command-line interface proficiency