Migrating from gemini-3.1-flash-lite-preview to gemini-3.1-flash-lite

What changes when you move from gemini-3.1-flash-lite-preview to gemini-3.1-flash-lite: prices, limits, features and parameters, read from each company's own pages.

From: gemini-3.1-flash-lite-preview
Status: Retired
Shutdown: May 25, 2026 at the earliest
Time left: —

To: gemini-3.1-flash-lite
Status: Deprecated
Shutdown: May 7, 2027 at the earliest
Time left: 204 days

gemini-3.1-flash-lite is itself deprecated, shutting down May 7, 2027 at the earliest. Its replacement is gemini-3.5-flash-lite.

Prices

USD per 1M tokens, standard tier

Type	gemini-3.1-flash-lite-preview	gemini-3.1-flash-lite	Change
Input	Not published	$0.25first seen October 1, 2026 · source	—
Cached input	Not published	$0.025first seen October 1, 2026 · source	—
Output	Not published	$1.50first seen October 1, 2026 · source	—

Other tiers, prompt-size bands and modalities are on each model's page.

Limits

Tokens

Limit	gemini-3.1-flash-lite-preview	gemini-3.1-flash-lite	Change
Context window	1,048,576 tokensin place when tracking began (October 6, 2026) · source	1,048,576 tokensin place when tracking began (October 6, 2026) · source	0%
Max output tokens	65,536 tokensin place when tracking began (October 6, 2026) · source	65,536 tokensin place when tracking began (October 6, 2026) · source	0%

Features and parameters

Compare models

Same on both

Structured outputs: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Function calling: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Prompt caching: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Batch API: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Image input: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
PDF input: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Reasoning / thinking: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source
Built-in web search: supported on both.gemini-3.1-flash-lite-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-flash-lite: in place when tracking began (October 6, 2026) · source

Not published for gemini-3.1-flash-lite-preview: Fine-tuning, temperature parameter, top_p parameter, logprobs.

Not published for gemini-3.1-flash-lite: Fine-tuning, temperature parameter, top_p parameter, logprobs.

Free tier

gemini-3.1-flash-lite-preview: no free tier listed

gemini-3.1-flash-lite: Free tier, in place when tracking began (October 7, 2026) (source) · All free models

gemini-3.1-flash-lite adds a free tier.

Aliases

All aliases

No aliases point at either model.

On cloud platforms

All platform dates

Model	Platform	Platform ID	Shutdown	Time left
gemini-3.1-flash-lite	Google Cloud Vertex AI	gemini-3.1-flash-lite	not before May 7, 2027Active

Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.

Checklist

Change the model string from gemini-3.1-flash-lite-preview to gemini-3.1-flash-lite.

Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gemini-3.1-flash-lite-preview, gemini-3.1-flash-lite.