Gemini 3 Flash Pro: pricing, context window and benchmarks
Gemini 3 Flash Pro is a frontier model from Google DeepMind. It offers a 400,000-token context window, costs $17.71 per million input tokens and $86.50 per million output tokens, and averages 84.8 across the index's benchmark suite.
Pricing
Gemini 3 Flash Pro costs $17.71 per million input tokens and $86.50 per million output tokens. A blended 3:1 input-to-output mix works out to about $34.91 per million tokens. Cached input is listed at $1.65 per million tokens.
| Item | Price | Notes |
|---|---|---|
| Input | $17.71 | per 1M tokens |
| Output | $86.50 | per 1M tokens |
| Cached input | $1.65 | per 1M tokens |
| Blended 3:1 | $34.91 | estimate per 1M tokens |
| 1M in + 1M out | $104.21 | estimate |
Benchmarks
Scores below are modelled estimates on a 0–100 scale. Use them to compare relative position, not as official vendor results.
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 87.0 | 35 | 94th | |
| GPQA Diamond | 77.7 | 93 | 85th | |
| SWE-bench Verified | 73.3 | 61 | 90th | |
| HumanEval | 89.9 | 47 | 92th | |
| MATH-500 | 91.8 | 26 | 96th | |
| AIME 2025 | 79.9 | 90 | 85th | |
| LiveCodeBench | 80.2 | 42 | 93th | |
| IFEval | 92.8 | 22 | 96th | |
| TruthfulQA | 86.2 | 48 | 92th | |
| HellaSwag | 90.6 | 74 | 88th | |
| MMMU | 83.0 | 22 | 96th | |
| Arena Elo | 1469.2 | 35 | 94th |
What Gemini 3 Flash Pro is good for
Gemini 3 Flash Pro sits in the frontier tier of the index. It is aimed at work where answer quality matters more than unit cost: hard reasoning, multi-step coding, document analysis and multimodal inputs. At $17.71 per million input tokens and a 400,000-token context window, it is a premium option, so reserve it for tasks where a cheaper model measurably fails.
Strengths
- Top-tier average benchmark score (84.8), placing it #49 of 600.
- Large 400,000-token context window for long documents and agent traces.
- Accepts more than text, including image input where the provider supports it.
- Reasoning-oriented profile, useful for multi-step problems and structured analysis.
- Coding benchmarks are a relative strength within its tier.
Trade-offs
- Proprietary licence: you cannot download the weights or self-host the model.
- Premium input pricing at $17.71 per million tokens.
- Cost can climb quickly on long outputs and high-volume traffic.
How it compares
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| GPT-5.1 Vision | OpenAI | 400000 | $17.76 | 84.8 |
| Gemini 2.5 Pro Max | Google DeepMind | 200000 | $16.94 | 84.8 |
| Gemini 3 Flash Pro | Google DeepMind | 400000 | $17.71 | 84.8 |
| o3 Max | OpenAI | 2000000 | $17.82 | 84.8 |
| GPT-4.1 Max | OpenAI | 400000 | $17.34 | 84.7 |
| Qwen3-Max Turbo | Alibaba Cloud | 1000000 | $17.70 | 84.7 |
FAQ
How much does Gemini 3 Flash Pro cost?
Gemini 3 Flash Pro is listed at $17.71 per million input tokens and $86.50 per million output tokens. Cached input is $1.65 per million tokens. A blended 3:1 input-to-output mix is about $34.91 per million tokens.
What is the context window of Gemini 3 Flash Pro?
Gemini 3 Flash Pro has a context window of 400,000 tokens and can emit up to 4,096 output tokens per request in this index.
Is Gemini 3 Flash Pro open weights?
No. Gemini 3 Flash Pro is a proprietary model with a proprietary licence, so you cannot download the weights.
How does Gemini 3 Flash Pro score on benchmarks?
Gemini 3 Flash Pro averages 84.8 across the scored benchmarks in this index, ranking #49 of 600 models. Its strongest relative result is Arena Elo at 1469.2.
What is Gemini 3 Flash Pro best for?
Gemini 3 Flash Pro sits in the frontier tier of the index. It is aimed at work where answer quality matters more than unit cost: hard reasoning, multi-step coding, document analysis and multimodal inputs. At $17.71 per million input tokens and a 400,000-token context window, it is a premium option, so reserve it for tasks where a cheaper model measurably fails.