Nano Banana 2 Lite

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation in roughly 4 seconds — about 2.7× faster than Gemini 3.1 Flash Image — while keeping the character consistency, precise editing, and real-world knowledge of the Nano Banana family.

A single drop-in API handles text-to-image, image editing, and multi-image composition. As a multimodal model it also returns text alongside images. Outputs are generated at 1K resolution across 14 aspect ratios and carry an invisible SynthID watermark so they can be identified as AI-generated.

Positioned as the best balance of quality and speed in the Nano Banana 2 line, it lets you generate thousands of images at a fraction of the cost of heavier production models — ideal for prototyping, real-time apps, and visual workflows at scale.

google/gemini-3.1-flash-lite-image

Organization: Google
Family: gemini-flash-lite
Providers: 6
Context: 65,536
Output limit: 4,096
Knowledge: 2025-01
Release: 2026-06-30
Updated: 2026-06-30
Weights: Closed
Input: text, image
Output: text, image
Capabilities: Tools, Reasoning, Temperature

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

8 offers · USD per million tokens

Provider	Model ID	Context	Output	Input / output · 1M	Reasoning	Tools	Structured	Details
AIHubMix	gemini-3.1-flash-lite-image	65,536	4,096	$0.25 / $1.50	Yes	Yes	No	View
Eden AI	google/gemini-3.1-flash-lite-image	65,536	4,096	$0.25 / $1.50	Yes	No	Yes	View
Eden AI	vertex/gemini-3.1-flash-lite-image	65,536	4,096	$0.25 / $1.50	Yes	No	Yes	View
Google	gemini-3.1-flash-lite-image	65,536	4,096	$0.25 / $30.00	Yes	Yes	No	View
Kilo Gateway	google/gemini-3.1-flash-lite-image	65,536	58,982	$0.25 / $1.50	Yes	No	No	View
Googlevia OpenRouter	google/gemini-3.1-flash-lite-image unknown	65,536	58,982	$0.25 / $1.50	Yes	No	No	View
Google AI Studiovia OpenRouter	google/gemini-3.1-flash-lite-image unknown	65,536	58,982	$0.25 / $1.50	Yes	No	No	View
Vercel AI Gateway	google/gemini-3.1-flash-lite-image	65,536	4,096	$0.25 / $1.50	Yes	No	No	View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens

Input from$0.25Per 1M input tokens

Output from$1.50Per 1M output tokens

Available offers8Across 6 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Endpoint price comparisonLatest observed snapshot · 2 lowest-priced configurations

InputOutput

Googlegoogle-vertex/global

$0.25$1.50

Google AI Studiogoogle-ai-studio

$0.25$1.50

google/gemini-3.1-flash-lite-imageObserved Oct 4, 2026, 11:31 AM UTC

Input: $0.25
Output: $1.50

Additional fees and pricing conditions

web search: $0.014 / search
image output: $0.00003 / image

Hosting prices through OpenRouter All endpoints and cache rates

Endpoint	Input / 1M	Output / 1M	Cache read / 1M	Cache write / 1M
Googlegoogle-vertex/global	$0.25	$1.50	—	—
Google AI Studiogoogle-ai-studio	$0.25	$1.50	—	—

Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.

Performance

Review reported latency and output-throughput percentiles from the latest observed rolling window.

Latest 30-minute observation

Time to first token · milliseconds

Latency distributionRolling 30-minute snapshot · 2 endpoints

P50P75P90P99

Googlegoogle-vertex/global

7,459–20,491.7 ms

Google AI Studiogoogle-ai-studio

5,186–13,971 ms

All latency percentiles 2 endpoints

Endpoint	P50	P75	P90	P99
Googlegoogle-vertex/global	7,459 ms	9,250.5 ms	11,277 ms	20,491.7 ms
Google AI Studiogoogle-ai-studio	5,186 ms	7,083 ms	8,847 ms	13,971 ms

Output throughput · tokens per second

All throughput percentiles 2 endpoints

Endpoint	P50	P75	P90	P99
Googlegoogle-vertex/global	0 t/s	0 t/s	0 t/s	0 t/s
Google AI Studiogoogle-ai-studio	0 t/s	0 t/s	0 t/s	0 t/s

Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.

Uptime

Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.

Successful requests by window

Availability by endpointCurrent overlapping windows · 2 endpoints

Endpoint5 minutes30 minutes24 hours

Googlegoogle-vertex/globalObserved Oct 4, 2026, 11:31 AM UTC

100%

99.92%

99.96%

Google AI Studiogoogle-ai-studioObserved Oct 4, 2026, 11:31 AM UTC

—

99.9%

Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.

Benchmarks

Review attributed evaluation results on each source's original scale.

External evaluations

Sources: Artificial Analysis and Design Arena, via OpenRouter. Scores retain their original scales and are not OpenAI Suite ratings.

Detailed evaluations

Evaluation scoresAccuracy or item F1 · higher is better

gpqa diamondGoogle: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)

10.269%

Evaluation	Configuration	Source	Results	Details
gpqa diamond	Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)google/gemini-3.1-flash-lite-image-20260630	OpenRouter	10.269%	Details

Sources: Artificial Analysis, Design Arena and OpenRouter. Evaluation configurations and scales differ; results are not interchangeable. Updated Oct 4, 2026.

Technical details & API

Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.

Current route specifications

google/gemini-3.1-flash-lite-imageObserved Oct 4, 2026, 11:31 AM UTC

Context: 65,536
Maximum output: 58,982
Tokenizer: Gemini
Input: image, text
Output: image, text
Moderation: No
Knowledge cutoff: 2025-01-01
Added to OpenRouter: 2026-06-30

Base URLhttps://openrouter.ai/api/v1

Model IDgoogle/gemini-3.1-flash-lite-image

Version IDgoogle/gemini-3.1-flash-lite-image-20260630

Reasoning

Required: No
Enabled by default: Yes
Default effort: minimal
Supported efforts: high, minimal

Supported parameters

include_reasoning
max_tokens
reasoning
reasoning_effort
response_format
seed
temperature
top_p

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does Nano Banana 2 Lite cost?

Listed rates start at $0.25 per million input tokens and $1.50 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer Nano Banana 2 Lite?

There are 8 cataloged offers across 6 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 65,536 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: No. Support can vary by endpoint.

Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

Sep 14, 2026 · e9265b5bf286
Sep 12, 2026 · 400f101f2e3f