Model comparison
GPT-5-Codex vs Nova 2.0 Pro Preview
GPT-5-Codex is the stronger model overall, scoring 37.9 to 33.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in agentic & tool use, where GPT-5-Codex leads 31.0 to 21.9.
Side by side
| GPT-5-Codex | Nova 2.0 Pro Preview | |
|---|---|---|
| Provider | OpenAI | Amazon |
| Noometry Index | 37.9 | 33.4 |
| Released | 2025-09-15 | 2025-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 3 | 3 |
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Category by category
Coding GPT-5-Codex leads
GPT-5-Codex: 42.4 (#103), Nova 2.0 Pro Preview: 40.8 (#133)
Agentic & Tool Use GPT-5-Codex leads
GPT-5-Codex: 31.0 (#72), Nova 2.0 Pro Preview: 21.9 (#136)
| Benchmark | GPT-5-Codex | Nova 2.0 Pro Preview |
|---|---|---|
| Terminal-Bench | 44.3% | — |
| GDP.pdf | — | 2% |
Reasoning GPT-5-Codex leads
GPT-5-Codex: 30.9 (#83), Nova 2.0 Pro Preview: 22.4 (#194)
| Benchmark | GPT-5-Codex | Nova 2.0 Pro Preview |
|---|---|---|
| Kagi LLM Benchmark | 70.3% | — |
| CritPt | — | 0% |
Frequently asked questions
Is GPT-5-Codex better than Nova 2.0 Pro Preview?
GPT-5-Codex is the stronger model overall, scoring 37.9 to 33.4 on the Noometry Index.
Is GPT-5-Codex or Nova 2.0 Pro Preview better for coding?
GPT-5-Codex scores higher on coding benchmarks: 42.4 versus 40.8 in the Noometry coding category.
How many benchmarks do GPT-5-Codex and Nova 2.0 Pro Preview share?
0 benchmarks have published results for both models. GPT-5-Codex has 3 scored results on Noometry and Nova 2.0 Pro Preview has 3.