Model comparison
Amazon Nova Experimental Chat 26 02 10 vs GPT-5-Codex
Amazon Nova Experimental Chat 26 02 10 is the stronger model overall, scoring 44.5 to 37.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
Side by side
| Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 44.5 | 37.9 |
| Released | — | 2025-09-15 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 128K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $10 |
| Results tracked | 12 | 3 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Amazon Nova Experimental Chat 26 02 10 leads
Amazon Nova Experimental Chat 26 02 10: 43.9 (#82), GPT-5-Codex: 42.4 (#103)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| WeirdML | — | 54.5% |
| LMArena Coding | 1483 | — |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 26 02 10: —, GPT-5-Codex: 31.0 (#72)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| Terminal-Bench | — | 44.3% |
Reasoning Too close to call
Amazon Nova Experimental Chat 26 02 10: 30.1 (#86), GPT-5-Codex: 30.9 (#83)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| Kagi LLM Benchmark | — | 70.3% |
| LMArena Hard Prompts | 1458 | — |
Math Not comparable
Amazon Nova Experimental Chat 26 02 10: 39.3 (#109), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Math | 1438 | — |
Knowledge Not comparable
Amazon Nova Experimental Chat 26 02 10: 42.3 (#97), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Expert | 1506 | — |
Multilingual Not comparable
Amazon Nova Experimental Chat 26 02 10: 54.0 (#50), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Non-English | 1434 | — |
| LMArena Chinese | 1463 | — |
| LMArena Russian | 1423 | — |
Instruction Following Not comparable
Amazon Nova Experimental Chat 26 02 10: 75.2 (#69), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Instruction Following | 1427 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 26 02 10: 44.0 (#77), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Longer Query | 1441 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 26 02 10: 61.8 (#84), GPT-5-Codex: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Text | 1448 | — |
| LMArena Creative Writing | 1368 | — |
| LMArena Multi-Turn | 1442 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 26 02 10 better than GPT-5-Codex?
Amazon Nova Experimental Chat 26 02 10 is the stronger model overall, scoring 44.5 to 37.9 on the Noometry Index.
Is Amazon Nova Experimental Chat 26 02 10 or GPT-5-Codex better for coding?
Amazon Nova Experimental Chat 26 02 10 scores higher on coding benchmarks: 43.9 versus 42.4 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 26 02 10 and GPT-5-Codex share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 02 10 has 12 scored results on Noometry and GPT-5-Codex has 3.