AI Model Watch
Models / Google

Gemini 2.5 Flash Preview (09-25)

Retired

Dated preview snapshot of Gemini 2.5 Flash. Google's deprecations table spells this id gemini-2.5-flash-preview-09-25 while the models page uses gemini-2.5-flash-preview-09-2025 as its worked example of the "preview" naming convention; the id here is the one the deprecations table states. Google marks already-shut-down models with a gray row on the deprecations table ("Already-shutdown models are indicated with gray backgrounds"), and this row is gray, so status is retired. Google states the listed shutdown dates are "the earliest possible dates on which a model might be retired". Not priced on the current pricing page, so token prices are null rather than guessed from the surviving family member. Google's current models page publishes no input/output token limits for this endpoint (read 2026-08-19), so context_window and max_output_tokens are null rather than carried over from a page that no longer states them. Lifecycle read first-party from Google's deprecations table on 2026-08-19.

Gemini 2.5 Flash Preview (09-25) by Google is tracked live in our LLM catalog. It has been retired (shut down 17 Feb 2026); the recommended migration is Gemini 3.6 Flash.

Last verified: 19 Aug 2026 · sourced from official provider documentation

Lifecycle warning

This model has been retired. Scheduled shutdown: 17 Feb 2026. Recommended migration: Gemini 3.6 Flash.

Read the Gemini 2.5 Flash Preview (09-25) migration guide → replacement & cheapest alternatives

Provider
Google
Status
Retired
Input price
—
Output price
—
Cached input
—
Blended price
—
Context window
—
Max output
—
Modality
text, image, video, audio, pdf
Open weights
No — API only
Knowledge cutoff
—
Released
25 Sep 2025
API string
gemini-2.5-flash-preview-09-25

Source: Google official documentation ↗

See also

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FAQ

Gemini 2.5 Flash Preview (09-25) — questions & answers

Is Gemini 2.5 Flash Preview (09-25) still available?

Gemini 2.5 Flash Preview (09-25) has been retired and is no longer available. Its scheduled shutdown date is 17 Feb 2026. The recommended migration is Gemini 3.6 Flash.

Does Gemini 2.5 Flash Preview (09-25) support image or vision input?

Yes — Gemini 2.5 Flash Preview (09-25) accepts image input. Listed modalities: text, image, video, audio, pdf.

Can I self-host Gemini 2.5 Flash Preview (09-25)?

No — Gemini 2.5 Flash Preview (09-25) is proprietary. Its weights are not publicly released, so it is available only through Google's API (or hosted partners), not for self-hosting.

What is the API model string for Gemini 2.5 Flash Preview (09-25)?

The API model identifier for Gemini 2.5 Flash Preview (09-25) is "gemini-2.5-flash-preview-09-25" when calling Google's API.