Models / Google/ Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite

Name: Gemini 3.1 Flash Lite
Author: Google

Google · released May 7, 2026

InputOutput

Type: Proprietary
Input: $0.25
Output: $1.50
Cached: Not published

List price · per 1M tokens · Google AI at 1M context · source ↗ · a reseller below undercuts it; the table carries the spread

Our take

Written Aug 3, 2026

Gemini 3.1 Flash Lite is a lightweight multimodal model from Google that can handle up to one million tokens in a single request and accepts text, images, files, audio and video. It is designed for long-context work and offers notably lower rates through Google's own platforms than through third-party providers.

Who should pick it

Pick this for long-context multimodal tasks needing one million tokens of working memory, or if you are inside the Google ecosystem and can use Vertex or AI Studio for the cheapest tier. Skip it if you need verified benchmark scores, want to self-host, or are locked to third-party routing where cost doubles.

The case for it

One-million-token request limit, among the largest disclosed in the catalogue.
Broad multimodal input: text, images, files, audio and video simultaneously.
Google-native routing is half the price of third-party providers on the same model.
Throughput options up to 106 tokens per second on AI Studio, against 67 on the base tier.

The case against it

No benchmark scores in the catalogue — chat, reasoning and coding quality are all unverified.
Third-party routing carries a sharp price penalty over Google direct.
Parameter count is undisclosed, so there is no basis for efficiency claims against competitors.

How good is it?

Nothing measured, on any board we watch.

We hold no score for this model.

We look for every model we track on every board we watch, and none of them has turned up Gemini 3.1 Flash Lite — so there is no intelligence, coding, agentic or writing score to show you, not a low one, none.

The boards we watch →

Or rent it from someone else

5 providers, from 7 listings.

Cheapest published offer

Google AI

The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts Google AI on 1M of context.

per 1M tokens: $0.25 in / $1.50 out
Context served: 1M
Throughput: Not measured

Current provider offers with price, context and prompt-privacy answers
Provider	In / out per 1M tokens	Context	Throughput	Trains on prompts	Logs prompts	Zero retention
Google Vertex AIglobal	$0.13 / $0.75	1M	4 tok/s	No	No	Confirmed
Google AI Studioflex tier	$0.13 / $0.75	1M	123 tok/s	No	Yes55 days	Unknown
Google AI	$0.25 / $1.50	1M66K out	not measured	Unknown	Unknown	Unknown
OpenRouter	$0.25 / $1.50	1M	not measured	Unknown	Unknown	Unknown
Google AI Studio	$0.25 / $1.50	1M	121 tok/s	No	Yes55 days	Unknown
DeepInfra	$0.25 / $1.50	1M	not measured	Unknown	Unknown	Unknown
Google AI Studiopriority tier	$0.45 / $2.70	1M	57 tok/s	No	Yes55 days	Unknown

Across the 7 listings we hold: 4 say they do not train on prompts, 0 say they do and 3 do not say. 1 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.

What each host's API supports

From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.

✓
Supported: ✗
Not supported
Not published: host gave no parameter list

API features per host
Provider	Tool calling	JSON output	Strict schema
Google Vertex AIglobal	✓	✓	✓
Google AI Studioflex	✓	✓	✓
Google AI
OpenRouter	✓	✓	✓
Google AI Studio	✓	✓	✓
DeepInfra
Google AI Studiopriority	✓	✓	✓

Tool calling: 5 of 7 listings say yes, 2 publish no parameter list. JSON output: 5 of 7 listings say yes, 2 publish no parameter list. Strict schema: 5 of 7 listings say yes, 2 publish no parameter list.

Models people weigh against Gemini 3.1 Flash Lite

Shortlist any of these to compare them side by side.

Other sizes and versionsGemini 3.5 Flash Lite Gemini 2.5 Flash Lite

SucceedsGemini 2.5 Flash Lite

Compare them field by field →

When we formed this view

And whether anything has moved since.

Dates behind this page

Jul 26, 2026Price changegoogle-vertex repriced google/gemini-3.1-flash-liteinput $0.25 → $0.125, output $1.5 → $0.75 per 1M tokensdetected

Jul 26, 2026ListedListed on LLMapfirst indexed by our pipelinedetected

May 7, 2026AnnouncedGemini 3.1 Flash Lite announced by Googleannounced

Prices last checked 9d ago

What we do not know about this model yet

No board we watch has turned up a score, so we hold no quality figures at all.
2 of 7 listings publish no parameter list, so what their API accepts is unknown to us.
Nothing we hold says whether an endpoint streams, so we do not show it either way.
3 of 7 listings do not say whether they train on prompts.

Licence and identifiers

What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.

Licence

Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.

Identifiers

Modality record: text+image+file+audio+video->text
Catalogue slug: google-gemini-3-1-flash-lite

Machine-readable model card (omc.json) →

Explore furtherWhere to run Gemini 3.1 Flash Lite Longest context windows

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