GPT-5.1-Codex
Model
by OpenAI
Vendor:OpenAI
│Model Size:Unknown
│pages.modelDetail.contextWindow:400,000 tokens
│Max Output:128,000 tokens
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Artificial Analysis
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OpenRouter
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Specifications
Model Size
Unknown
Total Context
400.0K
Max Output
128.0K
Pricing
Input $1.25/M
Output $10/M
Cache $0.125/M
Performance Benchmarks
components.product.benchmarks.terminalBench
60.4%
Command-line interface proficiency