Google Gemini 2.5 Pro clearly outperforms the OpenAI o3-mini in the ai language models category, particularly in battery, scoring 8.4/10 vs 6.6/10. If you want the better overall performer, Google Gemini 2.5 Pro is the clear pick.
Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | 2.5 Pro | OpenAI o3-mini |
|---|---|---|
| Input (Prompt) | $1.25/1M | ✓$1.10/1M |
| Output (Completion) | $10.00/1M | ✓$4.40/1M |
| Open Source | Proprietary | Proprietary |
Context Window (tokens)
| Metric | 2.5 Pro | OpenAI o3-mini |
|---|---|---|
| Max Output | 65,536 tok | ✓100,000 tok |
| Speed | ✓100 tok/s | 80 tok/s |
| Time to First Token | ✓800ms | 2.0s |
| Languages | 40+ | ✓50+ |
Higher is better. Industry-standard AI evaluation benchmarks.
2.5 Pro
OpenAI o3-mini
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OpenAI o3-mini
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OpenAI o3-mini
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| Feature | 2.5 Pro | OpenAI o3-mini |
|---|---|---|
| Reasoning / Chain-of-Thought | ✓ | ✓ |
| Vision (Image Input) | ✓ | ✕ |
| Audio Input | ✓ | ✕ |
| Video Input | ✓ | ✕ |
| Image/Audio Output | ✕ | ✕ |
| Function Calling / Tools | ✓ | ✓ |
| JSON Mode | ✓ | ✓ |
| Real-time Web Access | ✓ | ✕ |
| Fine-tuning Support | ✕ | ✕ |
| Batch API | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| Open Source | ✕ | ✕ |
| Field | 2.5 Pro | OpenAI o3-mini |
|---|---|---|
| Provider | OpenAI | |
| Knowledge Cutoff | 2025-01 | 2023-10 |
| Best For | reasoningcodingmultimodallong contextmath | reasoningcodingmathcost efficiency |
Buy Google Gemini 2.5 Pro if…
Buy the Google Gemini 2.5 Pro if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Buy OpenAI o3-mini if…
The OpenAI o3-mini is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Google Gemini 2.5 Pro clearly outperforms the OpenAI o3-mini in the ai language models category, particularly in battery, scoring 8.4/10 vs 6.6/10. If you want the better overall performer, Google Gemini 2.5 Pro is the clear pick.
Yes, Google Gemini 2.5 Pro scores higher overall (9.5 vs 8.9).
Check the latest prices using the buy links above.
Buy the Google Gemini 2.5 Pro if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
The OpenAI o3-mini is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.