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o3 vs Gemini 2.5 Pro
Side-by-side comparison of specs, pricing, and capabilities
| Spec | 🧠 o3 | 🌐 Gemini 2.5 Pro |
|---|---|---|
| Provider | OpenAI | |
| Category | 🧠 Reasoning | 🌐 Multimodal |
| Parameters | Undisclosed | Undisclosed |
| Context Window | 200K tokens | 1.0M tokens |
| License | 🔒 proprietary | 🔒 proprietary |
| Input Price | $10 | $1.25 |
| Output Price | $40 | $10 |
| API Available | ✅ | ✅ |
| Released | Apr 16, 2025 | Mar 25, 2025 |
| Trending Score | 🔥 91 | 🔥 93 |
o3 Strengths
- ✓Top-tier reasoning
- ✓PhD-level math/science
- ✓Strong at competitive coding
- ✓Deep analysis
Gemini 2.5 Pro Strengths
- ✓1M+ token context window
- ✓Native multimodal
- ✓Deep research mode
- ✓Competitive pricing
About o3
OpenAI's most powerful reasoning model. Uses chain-of-thought to solve complex math, science, and coding problems.
View full details →About Gemini 2.5 Pro
Google's most capable model with 1M+ token context, native multimodal understanding, and deep research capabilities.
View full details →❓ Frequently Asked Questions
Which is better, o3 or Gemini 2.5 Pro?
It depends on your use case. o3 (OpenAI) has a trending score of 91, while Gemini 2.5 Pro (Google) scores 93. o3 costs $10 per 1M input tokens. Check the comparison table above for detailed specs.
Is o3 cheaper than Gemini 2.5 Pro?
o3 costs $10 input / $40 output per 1M tokens, while Gemini 2.5 Pro costs $1.25 input / $10 output.
Can I use both o3 and Gemini 2.5 Pro?
Yes! Many developers use multiple models for different tasks. You might use one for complex reasoning and another for high-volume, cost-sensitive workloads.