Google: Gemini 2.5 Flash vs OpenAI: o3 Mini
Side-by-side comparison of Google: Gemini 2.5 Flash and OpenAI: o3 Mini. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceGoogle: Gemini 2.5 Flash leads overall
Google: Gemini 2.5 Flash leads in price and context window and capabilities, making it the stronger choice for most workflows. OpenAI: o3 Mini remains competitive with advantages in max output.
Best for with Google: Gemini 2.5 Flash
Best for with OpenAI: o3 Mini
Side-by-side
Technical specifications
| Google: Gemini 2.5 Flash | OpenAI: o3 Mini | |
|---|---|---|
| Provider | OpenAI | |
| Input price | $0.30/M | $1/M |
| Output price | $3/M | $4/M |
| Context window | 1.0M | 200K |
| Max output | 66K | 100K |
| Capabilities | Tool useVisionAudioReasoning | Tool useReasoning |
| Released | Jun 17, 2025 | Jan 31, 2025 |
Scoring breakdown
How each dimension compares
Price
Google: Gemini 2.5 Flash leadsGoogle: Gemini 2.5 Flash
$3/M tokens
OpenAI: o3 Mini
$4/M tokens
Context Window
Google: Gemini 2.5 Flash leadsGoogle: Gemini 2.5 Flash
1.0M tokens
OpenAI: o3 Mini
200K tokens
Capabilities
Google: Gemini 2.5 Flash leadsGoogle: Gemini 2.5 Flash
4/4
OpenAI: o3 Mini
2/4
Max Output
OpenAI: o3 Mini leadsGoogle: Gemini 2.5 Flash
66K tokens
OpenAI: o3 Mini
100K tokens
Recency
Google: Gemini 2.5 Flash
Jun 2025
OpenAI: o3 Mini
Jan 2025
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