Gemini 2.5 Flash vs Gemini 3.5 Flash Lite
Both have similar output pricing. Choose Gemini 2.5 Flash or Gemini 3.5 Flash Lite based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 2.5 Flash | Gemini 3.5 Flash Lite |
|---|---|---|
| Provider | ||
| Input / 1M tokens | $0.30 | $0.30 |
| Output / 1M tokens | $2.50 | $2.50 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Jun 2025 | — |
| SWE-bench Verified score | 28.7 | — |
| LMArena (Chatbot Arena) Elo score | 1417 | 1435 |
| LMArena Vision Elo score | 1235 | 1268 |
| FrontierMath score | 4.8 | — |
| Epoch Capabilities Index score | 143 | 145 |
| LMArena WebDev Elo score | — | 1440 |
| GPQA Diamond score | — | 83.3 |
FAQ
Is Gemini 2.5 Flash or Gemini 3.5 Flash Lite cheaper?
Gemini 2.5 Flash and Gemini 3.5 Flash Lite have comparable output pricing.
Which has the larger context window, Gemini 2.5 Flash or Gemini 3.5 Flash Lite?
Both models offer a similar context window.
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.