Model comparison
Nova 2.0 Pro Preview vs o3-pro
o3-pro is the stronger model overall, scoring 42.9 to 33.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in coding, where o3-pro leads 55.5 to 40.8.
Side by side
| Nova 2.0 Pro Preview | o3-pro | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 33.4 | 42.9 |
| Released | 2025-12-02 | 2025-06-10 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $20 |
| Output $ / M tokens | — | $80 |
| Results tracked | 3 | 12 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding o3-pro leads
Nova 2.0 Pro Preview: 40.8 (#133), o3-pro: 55.5 (#24)
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| SciCode | 42.7% | — |
| WeirdML | — | 58.2% |
Agentic & Tool Use Not comparable
Nova 2.0 Pro Preview: 21.9 (#136), o3-pro: —
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| GDP.pdf | 2% | — |
Reasoning o3-pro leads
Nova 2.0 Pro Preview: 22.4 (#194), o3-pro: 23.8 (#171)
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| CritPt | 0% | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.42 |
Knowledge Not comparable
Nova 2.0 Pro Preview: —, o3-pro: 29.5 (#238)
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
Long Context Not comparable
Nova 2.0 Pro Preview: —, o3-pro: 72.2 (#1)
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
Writing & Preference Not comparable
Nova 2.0 Pro Preview: —, o3-pro: 57.1 (#133)
| Benchmark | Nova 2.0 Pro Preview | o3-pro |
|---|---|---|
| Short-Story Creative Writing | — | 84.4% |
Frequently asked questions
Is Nova 2.0 Pro Preview better than o3-pro?
o3-pro is the stronger model overall, scoring 42.9 to 33.4 on the Noometry Index.
Is Nova 2.0 Pro Preview or o3-pro better for coding?
o3-pro scores higher on coding benchmarks: 55.5 versus 40.8 in the Noometry coding category.
How many benchmarks do Nova 2.0 Pro Preview and o3-pro share?
0 benchmarks have published results for both models. Nova 2.0 Pro Preview has 3 scored results on Noometry and o3-pro has 12.