Gemini 3 Pro Turbo vs o4 Pro: which model should you choose?
We compared Gemini 3 Pro Turbo and o4 Pro on price, context window and 12 benchmarks. o4 Pro has the stronger average benchmark score; o4 Pro is cheaper on a blended 3:1 basis.
Gemini 3 Pro Turbo
Gemini 3 Pro Turbo is a frontier model from Google DeepMind. It offers a 400,000-token context window, costs $19.62 per million input tokens and $89.91 per million output tokens, and averages 86.4 across the index's benchmark suite.
- Input
- $19.62 / 1M
- Output
- $89.91 / 1M
- Context
- 400,000
- Avg score
- 86.4
- Open weights
- No
o4 Pro
o4 Pro is a frontier model from OpenAI. It offers a 1,000,000-token context window, costs $19.37 per million input tokens and $70.19 per million output tokens, and averages 87.3 across the index's benchmark suite.
- Input
- $19.37 / 1M
- Output
- $70.19 / 1M
- Context
- 1,000,000
- Avg score
- 87.3
- Open weights
- No
Specification comparison
| Spec | Gemini 3 Pro Turbo | o4 Pro | Edge |
|---|---|---|---|
| Input price / 1M | $19.62 | $19.37 | B |
| Output price / 1M | $89.91 | $70.19 | B |
| Context window | 400,000 | 1,000,000 | B |
| Max output | 16,384 | 16,384 | Tie |
| Average score | 86.4 | 87.3 | B |
| Arena Elo | 1494.9 | 1471.2 | A |
| Open weights | No | No | Tie |
Benchmark comparison
Gemini 3 Pro Turbo wins 5, o4 Pro wins 7, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Gemini 3 Pro Turbo | o4 Pro | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 85.6 | 87.7 | 2.1 | o4 Pro |
| GPQA Diamond | 81.0 | 82.7 | 1.7 | o4 Pro |
| SWE-bench Verified | 77.4 | 78.5 | 1.1 | o4 Pro |
| HumanEval | 90.3 | 92.1 | 1.8 | o4 Pro |
| MATH-500 | 92.4 | 89.8 | 2.6 | Gemini 3 Pro Turbo |
| AIME 2025 | 82.8 | 89.9 | 7.1 | o4 Pro |
| LiveCodeBench | 82.7 | 81.8 | 0.9 | Gemini 3 Pro Turbo |
| IFEval | 93.4 | 90.9 | 2.5 | Gemini 3 Pro Turbo |
| TruthfulQA | 87.8 | 87.9 | 0.1 | o4 Pro |
| HellaSwag | 94.6 | 94.4 | 0.2 | Gemini 3 Pro Turbo |
| MMMU | 82.7 | 84.1 | 1.4 | o4 Pro |
| Arena Elo | 1494.9 | 1471.2 | 23.7 | Gemini 3 Pro Turbo |
Price analysis
On a blended 3:1 input-to-output basis, Gemini 3 Pro Turbo costs about $37.19 per million tokens and o4 Pro costs about $32.08. o4 Pro is roughly 14% cheaper than Gemini 3 Pro Turbo. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
o4 Pro has the larger context window at 1,000,000 tokens, compared with 400,000 for Gemini 3 Pro Turbo. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Gemini 3 Pro Turbo wins 5, o4 Pro wins 7, and 0 are tied. On the index average, o4 Pro leads Gemini 3 Pro Turbo by 0.9 points (87.3 versus 86.4).
The price picture favours o4 Pro. The context picture favours o4 Pro. Those two dimensions often matter more than a few benchmark points once a model is good enough for the task.
If you need a single default, start with o4 Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose Gemini 3 Pro Turbo if
- You prefer Google DeepMind's tooling or already use it.
Choose o4 Pro if
- You want the higher average benchmark score in this index.
- Unit cost matters and you want the cheaper blended price.
- You need the larger 1,000,000-token context window.
FAQ
Is Gemini 3 Pro Turbo better than o4 Pro?
On the index average, o4 Pro leads Gemini 3 Pro Turbo by 0.9 points (87.3 versus 86.4). The better choice depends on price, context and your task. Gemini 3 Pro Turbo wins 5 benchmarks, o4 Pro wins 7.
Which is cheaper, Gemini 3 Pro Turbo or o4 Pro?
o4 Pro is cheaper on a blended 3:1 basis at about $32.08 per million tokens, versus $37.19 for Gemini 3 Pro Turbo.
Which has the larger context window?
o4 Pro has the larger context window at 1,000,000 tokens. Gemini 3 Pro Turbo has 400,000 tokens.
Are these models open weights?
Gemini 3 Pro Turbo is proprietary; o4 Pro is proprietary.
Which should I choose for production?
If you need a single default, start with o4 Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.