Model comparison
Gemini 3 Pro vs Gemini 2.5 Pro
- Input
- $2.00 / 1M tokens (prompts ≤ 200K; $4.00 above 200K)
- Output
- $12.00 / 1M tokens (prompts ≤ 200K; $18.00 above 200K)
- Context
- 1M
- Released
- 2025-11-18
- Input
- $1.25 / 1M tokens (prompts ≤200K); $2.50 / 1M tokens (prompts >200K)
- Output
- $10.00 / 1M tokens (prompts ≤200K); $15.00 / 1M tokens (prompts >200K)
- Context
- 1M
- Released
- 2025-03-25
Gemini 3 Pro scores higher on 3 of the 3 benchmarks both models report; Gemini 2.5 Pro is cheaper on input tokens ($1.3 vs $2 per 1M, 1.6×).
Specs and pricing side by side
| Spec | Gemini 3 Pro | Gemini 2.5 Pro |
|---|---|---|
| Maker | Googlesame | |
| Released | 2025-11-18 | 2025-03-25 |
| Context window | 1M | 1Msame |
| Max output | 64K | 64Ksame |
| Input price | $2.00 / 1M tokens (prompts ≤ 200K; $4.00 above 200K) | $1.25 / 1M tokens (prompts ≤200K); $2.50 / 1M tokens (prompts >200K) |
| Output price | $12.00 / 1M tokens (prompts ≤ 200K; $18.00 above 200K) | $10.00 / 1M tokens (prompts ≤200K); $15.00 / 1M tokens (prompts >200K) |
| Parameters | not published | Not disclosed |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision, Audio, Video, PDF | Text, Vision, Audio, Video, PDFsame |
| Knowledge cutoff | January 2025 | January 2025same |
Benchmarks both models report
| Benchmark | Gemini 3 Pro | Gemini 2.5 Pro |
|---|---|---|
| GPQA Diamond | 91.9% | 84% |
| Humanity's Last Exam | 37.5% | 18.8% |
| SWE-bench Verified | 76.2% | 63.8% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick Gemini 3 Pro if…
- You care about GPQA Diamond, Humanity's Last Exam, SWE-bench Verified (it scores higher on 3 shared benchmarks).
- Your use case is: complex multi-step reasoning and analysis over long documents or research material.
Pick Gemini 2.5 Pro if…
- Cost matters: input tokens cost 1.6× less ($1.3 vs $2 per 1M).
- Your use case is: complex multi-step reasoning in math, science, and analysis.
FAQ
Which is better, Gemini 3 Pro or Gemini 2.5 Pro?
Gemini 3 Pro scores higher on 3 of the 3 benchmarks both models report; Gemini 2.5 Pro is cheaper on input tokens ($1.3 vs $2 per 1M, 1.6×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Gemini 2.5 Pro?
Gemini 3 Pro: $2.00 / 1M tokens (prompts ≤ 200K; $4.00 above 200K) input, $12.00 / 1M tokens (prompts ≤ 200K; $18.00 above 200K) output. Gemini 2.5 Pro: $1.25 / 1M tokens (prompts ≤200K); $2.50 / 1M tokens (prompts >200K) input, $10.00 / 1M tokens (prompts ≤200K); $15.00 / 1M tokens (prompts >200K) output (list API prices as published by each maker).
What are the context windows of Gemini 3 Pro and Gemini 2.5 Pro?
Gemini 3 Pro offers 1M with up to 64K output; Gemini 2.5 Pro offers 1M with up to 64K output.
Is Gemini 3 Pro newer than Gemini 2.5 Pro?
Gemini 3 Pro was released 2025-11-18; Gemini 2.5 Pro was released 2025-03-25.