Gemini 2.5 Pro vs o1
| Spec | Gemini 2.5 Pro | o1 |
|---|---|---|
| Respan Index | 23.1 (#102) | 23.3 (#100) |
| Blended price per 1M | $3.44 | $26.3 |
| Context window | 1.0M | 200K |
| Input / output per 1M | $1.25 / $10 | $15 / $60 |
| Max output | 66K | 100K |
| Input | text, vision, audio | text, vision |
| Released | 2025-06-17 | 2024-12-17 |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | Gemini 2.5 Pro | o1 |
|---|---|---|
| Coding | 3.2 Gemini 2.5 Pro | 7.1 o1 |
| Agents | 31.0 Gemini 2.5 Pro | 19.3* o1 |
| Reasoning | 24.5 Gemini 2.5 Pro | 23.2 o1 |
| Knowledge & language | 14.8* Gemini 2.5 Pro | 40.9 o1 |
| Human preference | 46.3 Gemini 2.5 Pro | 45.2* o1 |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
Gemini 2.5 Pro leads on 6 of the 6 benchmarks both report. Higher is better. Each score links to where it was published.
FAQ
Is Gemini 2.5 Pro better than o1?
o1 scores 23.3 on the Respan Index (#100), ahead of Gemini 2.5 Pro at 23.1 (#102). Gemini 2.5 Pro leads on 6 of the 6 benchmarks both report.
Which is cheaper, Gemini 2.5 Pro or o1?
Gemini 2.5 Pro lists at $1.25 input and $10 output per 1M tokens; o1 at $15 and $60. Gemini 2.5 Pro is 7.6x cheaper per token at list price.
Which has the larger context window?
Gemini 2.5 Pro accepts 1.0M tokens and o1 200K tokens.