OpenAI
Available in Shortly AI
GPT 5.2 Codex
Released December 18, 2025
ReasoningVision (Image)Tool Use
GPT‑5.2-Codex is a version of GPT‑5.2 further optimized for agentic coding in Codex, including improvements on long-horizon work through context compaction, stronger performance on large code changes like refactors and migrations, improved performance in Windows environments, and significantly stronger cybersecurity capabilities.
- Context window
- 400K tokens
- Maximum output
- 128K tokens
- Input pricing
- $1.75/M
- Output pricing
- $14.00/M
Independent benchmark
LiveBench performance
74.0overall
Benchmark data from LiveBench, release 2026-06-25. Scores are pinned and are not fetched on page load.
77.7
83.6
49.4
88.8
78.2
73.7
66.4
| Category | Score |
|---|---|
| Reasoning | 77.712 |
| Coding | 83.619 |
| Agentic Coding | 49.394 |
| Mathematics | 88.774 |
| Data Analysis | 78.204 |
| Language | 73.678 |
| Instruction Following | 66.446 |
Benchmarks measure selected evaluation tasks and do not guarantee performance for every prompt or workflow.
FAQ
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