OpenAI o3 vs Gemini 2.5 Pro
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
OpenAI o3
B
Gemini 2.5 Pro
- ProviderOpenAIGoogle
- Rank#65#61Higher rank
- TierAA
- Score72.874.3Higher score
- PriceAPI $2 input / $8 output per 1M tokens (deprecated; shutdown December 11, 2026)API $1.25 input / $10 output per 1M tokens (prompts up to 200K; $2.50 / $15 above)
- TaglineOpenAI's April 2025 reasoning model for math, science and coding, deprecated in the API since June 2026 with shutdown set for December 2026.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.
| Attribute | OpenAI o3 | Gemini 2.5 Pro |
|---|---|---|
| Provider | OpenAI | |
| Rank | #65 | #61Higher rank |
| Tier | A | A |
| Score | 72.8 | 74.3Higher score |
| Price | API $2 input / $8 output per 1M tokens (deprecated; shutdown December 11, 2026) | API $1.25 input / $10 output per 1M tokens (prompts up to 200K; $2.50 / $15 above) |
| Tagline | OpenAI's April 2025 reasoning model for math, science and coding, deprecated in the API since June 2026 with shutdown set for December 2026. | 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. |