Gemini 2.5 Flash Preview (09-25)

API ID gemini-2.5-flash-preview-09-25

gemini-2.5-flash-preview-09-25 was a preview Google model.

Status: Retired
Released: —
Shutdown: Feb 17, 2026 at the earliest
Replacement: Gemini 3.6 Flashgemini-3.6-flash

It was scheduled to shut down no earlier than February 17, 2026, which has passed. Check the provider's page before relying on it. Recommended replacement: gemini-3.6-flash.

How to migrate to Gemini 3.6 Flash

Benchmarks

Scores as each source published them

Comparing with Gemini 2.0 Flash, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

Arena	Gemini 2.5 Flash Preview (09-25)	Gemini 2.0 Flash	Rank	Date	Source
Text By category Math 1408 rank 148 vs not rated Creative writing 1380 rank 144 vs not rated Instruction following 1400 rank 146 vs not rated Hard prompts 1420 rank 158 vs not rated Long prompts 1417 rank 150 vs not rated Multi-turn 1401 rank 162 vs not rated Expert 1432 rank 142 vs not rated	1403 ±4	not rated	156 of 415 32,996 votes	Oct 13, 2026	source
Text: Coding	1427 ±7	not rated	188 of 410 6,921 votes	Oct 13, 2026	source
Vision	1229 ±10	not rated	73 of 165 4,804 votes	Oct 9, 2026	source

Rated as gemini-2.5-flash-preview-09-2025. Ratings come from people voting between two anonymous answers; Text and Vision are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Price history

USD per 1M tokens, standard tier

No price history yet.

Prices

USD per 1M tokens, every type and band, by tier

No published prices.

Changelog

Changes we detected on Google's pages

No changes recorded yet.

Last checked Oct 15, 2026, 8:15 am ET · Sources: Google deprecations, Google pricing, Google models, Google aliases, Google api models