Gemini 2.5 Flash vs o3
Gemini 2.5 Flash leads in 5 of 8 categories
Arena ELO
Gemini 2.5 Flash
Cheaper
Gemini 2.5 Flash
Faster
Gemini 2.5 Flash
Detailed Comparison
| Category | Gemini 2.5 Flash | o3 |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 1M WIN | 200K |
| Input Price ($/1M) | $0.3 WIN | $10 |
| Output Price ($/1M) | $2.5 WIN | $40 |
| Arena ELO | 1362 WIN | 1350 |
| Coding | unknown | unknown |
| Reasoning | unknown | unknown |
| Speed (tokens/sec) | ~150 t/s WIN | ~30 t/s |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Gemini 2.5 Flash or o3?
Gemini 2.5 Flash is approximately 94% cheaper than o3 per million tokens.
Which is better for coding, Gemini 2.5 Flash or o3?
Gemini 2.5 Flash scores unknown on coding benchmarks, while o3 scores unknown.
Which has a larger context window?
Gemini 2.5 Flash supports 1M context, while o3 supports 200K.
Is Gemini 2.5 Flash or o3 open source?
Gemini 2.5 Flash is proprietary. o3 is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
Gemini 2.5 Flash ranks higher with ELO 1362 vs 1350.
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