Gemini 2.5 Pro vs OpenAI o3
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Gemini 2.5 Pro
B
OpenAI o3
- ProviderGoogleOpenAI
- Rank#61Higher rank#65
- TierAA
- Score74.3Higher score72.8
- PriceAPI $1.25 input / $10 output per 1M tokens (prompts up to 200K; $2.50 / $15 above)API $2 input / $8 output per 1M tokens (deprecated; shutdown December 11, 2026)
- TaglineGoogle's 2025 Pro model with a 1M-token context window, since followed by the Gemini 3 series; Google lists Gemini 3.1 Pro as its replacement.OpenAI's April 2025 reasoning model for math, science and coding, deprecated in the API since June 2026 with shutdown set for December 2026.
| Attribute | Gemini 2.5 Pro | OpenAI o3 |
|---|---|---|
| Provider | OpenAI | |
| Rank | #61Higher rank | #65 |
| Tier | A | A |
| Score | 74.3Higher score | 72.8 |
| Price | API $1.25 input / $10 output per 1M tokens (prompts up to 200K; $2.50 / $15 above) | API $2 input / $8 output per 1M tokens (deprecated; shutdown December 11, 2026) |
| Tagline | Google's 2025 Pro model with a 1M-token context window, since followed by the Gemini 3 series; Google lists Gemini 3.1 Pro as its replacement. | OpenAI's April 2025 reasoning model for math, science and coding, deprecated in the API since June 2026 with shutdown set for December 2026. |