Gemini 2.5 Flash Preview 09 2025
Google
Key facts · verified Oct 29, 2026
Gemini 2.5 Flash Preview 09 2025 is a Google model. It was retired on 17 February 2026. Its last listed API price was $0.30 per million input tokens and $2.50 per million output tokens (before retirement). Its context window is 1M tokens. It ranks #160 on LMArena's text leaderboard (Elo 1403, read 1 Nov 2026). Source: ai.google.dev.
Gemini 2.5 Flash Preview 09-2025 was a Google model offered on the Gemini API as gemini-2.5-flash-preview-09-25. Google shut it down on 17 February 2026 and names gemini-3.6-flash as its replacement. It was priced at $0.30 per million input tokens and $2.50 per million output tokens, with a 1M-token context window. Its LMArena text rating is 1403 Elo (rank 160).
Pricing & specs checkedSource: vendor documentation · checked Oct 29, 2026LMArena: 1403 Elo (rank 160) · source · retrieved Nov 1, 2026
Full Specifications
$0.30 / $2.50 per million tokens | |
|---|---|
| Identity | |
| Developer | |
| Retired | 17 February 2026 |
| Status | Retired. Google shut down gemini-2.5-flash-preview-09-25 on 17 February 2026 and names gemini-3.6-flash as the replacement. |
| Licence | Proprietary |
| Self-hostable | No |
| Cost | |
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $0.850 / 1M tokens |
| Input price | $0.300 / 1M tokens |
| Output price | $2.500 / 1M tokens |
| Capacity | |
| Context window | 1M tokens |
| Measured quality | |
| LMArena Elo | 1403 (checked Nov 2026) |
| LMArena rank | Rank 160 |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 1651 |