gemini-2.5-flash-preview-05-20 vs Gemini 3 Flash
Gemini 3 Flash is cheaper on output tokens. Choose gemini-2.5-flash-preview-05-20 or Gemini 3 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | gemini-2.5-flash-preview-05-20 | Gemini 3 Flash |
|---|---|---|
| Provider | Jiekou.AI | OpenCode |
| Input / 1M tokens | $0.14 | $0.50 |
| Output / 1M tokens | $3.15 | $3.00 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Jan 2026 | Dec 2025 |
| Aider Polyglot score | 55.1 | — |
| SWE-bench Multilingual score | — | 72.7 |
| LMArena (Chatbot Arena) Elo score | — | 1466 |
| LMArena WebDev Elo score | — | 1440 |
| LMArena Vision Elo score | — | 1285 |
| Epoch Capabilities Index score | — | 152 |
FAQ
Is gemini-2.5-flash-preview-05-20 or Gemini 3 Flash cheaper?
Gemini 3 Flash is cheaper on output tokens ($3.00 vs $3.15 per 1M).
Which has the larger context window, gemini-2.5-flash-preview-05-20 or Gemini 3 Flash?
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.