Gemini 3.5 Flash vs o3
Gemini 3.5 Flash leads in 3 of 8 categories
Arena ELO
o3
Cheaper
Gemini 3.5 Flash
Faster
o3
Detailed Comparison
| Category | Gemini 3.5 Flash | o3 |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 1M WIN | 200K |
| Input Price ($/1M) | $1.5 WIN | $10 |
| Output Price ($/1M) | $9 WIN | $40 |
| Arena ELO | N/A | 1350 WIN |
| Coding | N/A | unknown |
| Reasoning | N/A | unknown |
| Speed (tokens/sec) | N/A | ~30 t/s WIN |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Gemini 3.5 Flash or o3?
Gemini 3.5 Flash is approximately 79% cheaper than o3 per million tokens.
Which is better for coding, Gemini 3.5 Flash or o3?
Gemini 3.5 Flash scores N/A on coding benchmarks, while o3 scores unknown.
Which has a larger context window?
Gemini 3.5 Flash supports 1M context, while o3 supports 200K.
Is Gemini 3.5 Flash or o3 open source?
Gemini 3.5 Flash is proprietary. o3 is proprietary.
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