Gemini 2.5 Pro is Google's most advanced AI model, engineered for deep reasoning and thoughtful response generation. It outperforms on key benchmarks, demonstrating exceptional logic and coding proficiency. Optimized for building dynamic web applications, autonomous code systems, and code adaptation, it delivers high-level performance. With built-in multimodal capabilities and an extended context window, the model efficiently processes large datasets and integrates diverse information sources to tackle complex challenges.
The OpenAI o3-mini is a high-speed, cost-effective reasoning model designed for STEM applications, with strong performance in science, mathematics, and coding. Launched in January 2025, it includes essential developer features such as function calling, structured outputs, and developer messages. The model offers three reasoning effort levels—low, medium, and high—allowing users to optimize between deeper analysis and faster response times. Unlike the o3 model, it lacks vision capabilities. Initially available to select developers in API usage tiers 3-5, it can be accessed via the Chat Completions API, Assistants API, and Batch API.
| Gemini 2.5 Pro | o3-mini | |
|---|---|---|
Web Site
| ||
Provider
| ||
Chat
| ||
Release Date
| ||
Modalities
| text images voice video | text |
API Providers
| Google AI Studio, Vertex AI, Gemini app | OpenAI API |
Knowledge Cut-off Date
| - | Unknown |
Open Source
| No | No |
Pricing Input
| Not available | $1.10 per million tokens |
Pricing Output
| Not available | $4.40 per million tokens |
MMLU
| Not available | 86.9% pass@1, high effort Source |
MMLU-Pro
| Not available | Not available |
MMMU
| 81.7% Source | Not available |
HellaSwag
| Not available | Not available |
HumanEval
| Not available | Not available |
MATH
| Not available | 97.9% pass@1, high effort Source |
GPQA
| 84.0% Diamond Science Source | 79.7% 0-shot, high effort Source |
IFEval
| Not available | Not available |
SimpleQA
| 52.9% | - |
AIME 2024 | 92.0% | - |
AIME 2025 | 86.7% | - |
Aider Polyglot
| 74.0% / 68.6% | - |
LiveCodeBench v5
| 70.4% | - |
Global MMLU (Lite)
| 89.8% | - |
MathVista
| - | - |
Mobile Application | ||
VideoGameBench | ||
Total score | 0.48% | - |
Doom II | 0% | - |
Dream DX | 4.8% | - |
Awakening DX | 0% | - |
Civilization I | 0% | - |
Pokemon Crystal | 0% | - |
The Need for Speed | 0% | - |
The Incredible Machine | 0% | - |
Secret Game 1 | 0% | - |
Secret Game 2 | 0% | - |
Secret Game 3 | 0% | - |
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