GPT-5 Codex
#2SWE-Bench Verified
by OpenAI
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About
GPT-5 Codex was developed as a specialized variant of GPT-5 optimized for programming and software development tasks. Built to understand and generate code across multiple programming languages, it serves developers with enhanced capabilities for code completion, debugging, translation, and explanation of complex codebases.
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Timeline
AnnouncedSep 15, 2025
ReleasedSep 15, 2025
Knowledge CutoffSep 30, 2024
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License & Family
License
Proprietary
Performance Overview
Performance metrics and category breakdown
Overall Performance
1 benchmarks
Average Score
74.5%
Best Score
74.5%
High Performers (80%+)
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All Benchmark Results for GPT-5 Codex
Complete list of benchmark scores with detailed information
| SWE-Bench Verified | text | 0.74 | 74.5% | Self-reported |
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