Gemini 2.5 Flash vs Gemini 3.5 Flash
Gemini 2.5 Flash leads in 4 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 | Gemini 3.5 Flash |
|---|---|---|
| Provider | ||
| Context Window | 1M | 1M |
| Input Price ($/1M) | $0.3 WIN | $1.5 |
| Output Price ($/1M) | $2.5 WIN | $9 |
| Arena ELO | 1362 WIN | N/A |
| Coding | unknown | N/A |
| Reasoning | unknown | N/A |
| Speed (tokens/sec) | ~150 t/s WIN | N/A |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Gemini 2.5 Flash or Gemini 3.5 Flash?
Gemini 2.5 Flash is approximately 73% cheaper than Gemini 3.5 Flash per million tokens.
Which is better for coding, Gemini 2.5 Flash or Gemini 3.5 Flash?
Gemini 2.5 Flash scores unknown on coding benchmarks, while Gemini 3.5 Flash scores N/A.
Which has a larger context window?
Gemini 2.5 Flash supports 1M context, while Gemini 3.5 Flash supports 1M.
Is Gemini 2.5 Flash or Gemini 3.5 Flash open source?
Gemini 2.5 Flash is proprietary. Gemini 3.5 Flash is proprietary.
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