Google: Gemini 2.5 Pro vs OpenAI: o3 Deep Research
Side-by-side comparison of Google: Gemini 2.5 Pro and OpenAI: o3 Deep Research. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceGoogle: Gemini 2.5 Pro leads overall
Google: Gemini 2.5 Pro leads in price and context window and capabilities, making it the stronger choice for most workflows. OpenAI: o3 Deep Research remains competitive with advantages in max output.
Best for with Google: Gemini 2.5 Pro
Best for with OpenAI: o3 Deep Research
Side-by-side
Technical specifications
| Google: Gemini 2.5 Pro | OpenAI: o3 Deep Research | |
|---|---|---|
| Provider | OpenAI | |
| Input price | $1/M | $10/M |
| Output price | $10/M | $40/M |
| Context window | 1.0M | 200K |
| Max output | 66K | 100K |
| Capabilities | Tool useVisionAudioReasoning | Tool useVisionReasoning |
| Released | Jun 17, 2025 | Oct 10, 2025 |
Scoring breakdown
How each dimension compares
Price
Google: Gemini 2.5 Pro leadsGoogle: Gemini 2.5 Pro
$10/M tokens
OpenAI: o3 Deep Research
$40/M tokens
Context Window
Google: Gemini 2.5 Pro leadsGoogle: Gemini 2.5 Pro
1.0M tokens
OpenAI: o3 Deep Research
200K tokens
Capabilities
Google: Gemini 2.5 Pro leadsGoogle: Gemini 2.5 Pro
4/4
OpenAI: o3 Deep Research
3/4
Max Output
OpenAI: o3 Deep Research leadsGoogle: Gemini 2.5 Pro
66K tokens
OpenAI: o3 Deep Research
100K tokens
Recency
Google: Gemini 2.5 Pro
Jun 2025
OpenAI: o3 Deep Research
Oct 2025
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