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Gemini 2.5 Pro vs Gemini 3 Pro
A detailed comparison of Gemini 2.5 Pro (Google) and Gemini 3 Pro (Google) across pricing, performance, and features.
Pricing Comparison
| Metric | Gemini 2.5 Pro | Gemini 3 Pro | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.25 | $2.00 | +60% |
| Output / 1M tokens | $10.00 | $12.00 | +20% |
| Context window | 1M | 1M | — |
| Max output | 65.536K | 65.536K | — |
Benchmark Comparison
| Benchmark | Gemini 2.5 Pro | Gemini 3 Pro |
|---|---|---|
| MMLU-Pro | 87.5% | 89.8% |
| HumanEval | 93.5% | 94% |
| GPQA | 76% | 77% |
Capabilities
| Capability | Gemini 2.5 Pro | Gemini 3 Pro |
|---|---|---|
| audio | ✓ | ✓ |
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
Gemini 2.5 Pro Strengths
- ✓Competitive pricing for its capabilities
- ✓1M context window
- ✓Well-tested and stable
Gemini 2.5 Pro Weaknesses
- ✗Being superseded by Gemini 3 Pro
Gemini 3 Pro Strengths
- ✓Stable and well-tested
- ✓1M token context window
- ✓Strong multimodal with audio
Gemini 3 Pro Weaknesses
- ✗Being superseded by 3.1 Pro
- ✗Context-tiered pricing ($4/$18 above 200K)
Quick Verdict
Best value: Gemini 2.5 Pro is the more affordable option at $1.25/$10 per 1M tokens.
Higher benchmarks: Gemini 3 Pro scores higher on average across available benchmarks (86.9% avg).
Choose Gemini 2.5 Pro if cost matters most. Choose Gemini 3 Pro if you need the best possible quality for complex tasks.