Gemini 2.5 Pro Max vs Gemini 3 Flash Turbo: which model should you choose?
We compared Gemini 2.5 Pro Max and Gemini 3 Flash Turbo on price, context window and 12 benchmarks. Gemini 2.5 Pro Max has the stronger average benchmark score; Gemini 2.5 Pro Max is cheaper on a blended 3:1 basis.
Gemini 2.5 Pro Max
Gemini 2.5 Pro Max is a frontier model from Google DeepMind. It offers a 200,000-token context window, costs $16.94 per million input tokens and $64.80 per million output tokens, and averages 84.8 across the index's benchmark suite.
- Input
- $16.94 / 1M
- Output
- $64.80 / 1M
- Context
- 200,000
- Avg score
- 84.8
- Open weights
- No
Gemini 3 Flash Turbo
Gemini 3 Flash Turbo is a frontier model from Google DeepMind. It offers a 200,000-token context window, costs $17.07 per million input tokens and $69.05 per million output tokens, and averages 84.1 across the index's benchmark suite.
- Input
- $17.07 / 1M
- Output
- $69.05 / 1M
- Context
- 200,000
- Avg score
- 84.1
- Open weights
- No
Specification comparison
| Spec | Gemini 2.5 Pro Max | Gemini 3 Flash Turbo | Edge |
|---|---|---|---|
| Input price / 1M | $16.94 | $17.07 | A |
| Output price / 1M | $64.80 | $69.05 | A |
| Context window | 200,000 | 200,000 | Tie |
| Max output | 65,536 | 16,384 | A |
| Average score | 84.8 | 84.1 | A |
| Arena Elo | 1450.2 | 1473.4 | B |
| Open weights | No | No | Tie |
Benchmark comparison
Gemini 2.5 Pro Max wins 7, Gemini 3 Flash Turbo wins 5, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Gemini 2.5 Pro Max | Gemini 3 Flash Turbo | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 86.7 | 87.9 | 1.2 | Gemini 3 Flash Turbo |
| GPQA Diamond | 79.8 | 77.5 | 2.3 | Gemini 2.5 Pro Max |
| SWE-bench Verified | 75.5 | 72.5 | 3.0 | Gemini 2.5 Pro Max |
| HumanEval | 87.0 | 90.6 | 3.6 | Gemini 3 Flash Turbo |
| MATH-500 | 91.6 | 87.6 | 4.0 | Gemini 2.5 Pro Max |
| AIME 2025 | 82.6 | 81.3 | 1.3 | Gemini 2.5 Pro Max |
| LiveCodeBench | 79.9 | 78.5 | 1.4 | Gemini 2.5 Pro Max |
| IFEval | 91.3 | 88.9 | 2.4 | Gemini 2.5 Pro Max |
| TruthfulQA | 85.5 | 87.4 | 1.9 | Gemini 3 Flash Turbo |
| HellaSwag | 92.9 | 89.5 | 3.4 | Gemini 2.5 Pro Max |
| MMMU | 79.7 | 83.0 | 3.3 | Gemini 3 Flash Turbo |
| Arena Elo | 1450.2 | 1473.4 | 23.2 | Gemini 3 Flash Turbo |
Price analysis
On a blended 3:1 input-to-output basis, Gemini 2.5 Pro Max costs about $28.91 per million tokens and Gemini 3 Flash Turbo costs about $30.06. Gemini 2.5 Pro Max is roughly 4% cheaper than Gemini 3 Flash Turbo. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
Both models list a 200,000-token context window. That is enough for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Gemini 2.5 Pro Max wins 7, Gemini 3 Flash Turbo wins 5, and 0 are tied. On the index average, Gemini 2.5 Pro Max leads Gemini 3 Flash Turbo by 0.7 points (84.8 versus 84.1).
The price picture favours Gemini 2.5 Pro Max. The context picture is effectively a tie. 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 Gemini 2.5 Pro Max for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose Gemini 2.5 Pro Max 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 65,536-token output limit.
Choose Gemini 3 Flash Turbo if
- You prefer Google DeepMind's tooling or already use it.
FAQ
Is Gemini 2.5 Pro Max better than Gemini 3 Flash Turbo?
On the index average, Gemini 2.5 Pro Max leads Gemini 3 Flash Turbo by 0.7 points (84.8 versus 84.1). The better choice depends on price, context and your task. Gemini 2.5 Pro Max wins 7 benchmarks, Gemini 3 Flash Turbo wins 5.
Which is cheaper, Gemini 2.5 Pro Max or Gemini 3 Flash Turbo?
Gemini 2.5 Pro Max is cheaper on a blended 3:1 basis at about $28.91 per million tokens, versus $30.06 for Gemini 3 Flash Turbo.
Which has the larger context window?
Both models list a 200,000-token context window.
Are these models open weights?
Gemini 2.5 Pro Max is proprietary; Gemini 3 Flash Turbo is proprietary.
Which should I choose for production?
If you need a single default, start with Gemini 2.5 Pro Max for quality-sensitive work, and check whether its price holds at your expected volume before committing.