Skip to content
Alpha
  • Models
  • Rankings
  • Ori

Footer

OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Ori
  • Collections
  • Providers
  • Tools
  • Pricing
  • Business
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Customers
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Trust Center
  • Support
  • Works With OR
  • Data
  • Brand

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status
  • AI Site Map

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube
Favicon for google

Google: Nano Banana Pro (Gemini 3 Pro Image Preview)

google/gemini-3-pro-image-preview

BenchmarksCompare

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and high-fidelity visual synthesis. The model generates context-rich graphics, from infographics and diagrams to cinematic composites, and can incorporate real-time information via Search grounding.

It offers industry-leading text rendering in images (including long passages and multilingual layouts), consistent multi-image blending, and accurate identity preservation across up to five subjects. Nano Banana Pro adds fine-grained creative controls such as localized edits, lighting and focus adjustments, camera transformations, and support for 2K/4K outputs and flexible aspect ratios. It is designed for professional-grade design, product visualization, storyboarding, and complex multi-element compositions while remaining efficient for general image creation workflows.

Modalities
In / Out Price
$2 / $120per 1M
Context
66K
Released
Nov 20, 2025
BenchmarksCompare
PlaygroundBenchmarksProvidersPricingPerformanceUptimeAppsActivityDocumentationFAQExplore

Playground

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for Google: Nano Banana Pro (Gemini 3 Pro Image Preview) (Artificial Analysis and Design Arena)
SourceBenchmarkScore
Artificial AnalysisNano Banana Pro (Gemini 3 Pro Image) Elo1,118
Design ArenaGemini 3 Pro Image Preview Models Arena Graphic Design Elo1226
Design ArenaGemini 3 Pro Image Preview Models Arena Image Elo1214
Design ArenaGemini 3 Pro Image Preview Models Arena Imageediting Elo1241
Design ArenaGemini 3 Pro Image Preview Models Arena Logo Elo1181

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), or Floor (cheapest).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

API

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

Not currently available through EU in-region routing. In-region routing docs

Documentation

Guides, cookbooks, blog posts, and tools for building with Google: Nano Banana Pro (Gemini 3 Pro Image Preview) on OpenRouter.

  • Nano Banana API: Edit Images with Gemini in CodeBlog post

Explore more models

AI Models with Vision: Multimodal LLMs for Image UnderstandingCollectionImage Generation ModelsCollectionAI Model RankingsRankingImage Model RankingsRanking
End-to-end latency
$2.00$2.00$120.00$12.00$0.20$0.2022.31s
99.72%
Not used in Standard routing:Why these endpoints are not used
Flex
$1.00$1.00$60.00$6.00$0.10$0.1022.27s
99.63%
End-to-end latency
22.27s

P50, best provider

Uptime (3d)The model was reachable. Request routed to a provider.
100.00%
Availability (3d)The model returned inference from any provider. Errors and empty responses count against it.
95.66%

Availability over the last 3 days

Last 72 hours
Availability 95.66%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
95.82%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

1.
Favicon for https://print.tinysnap.com/
TinySnap Print
new
299Mtokens
2.
Favicon for https://water-pipe.local/
water-pipe
new
195Mtokens
3.
Favicon for https://tech18.rdslogic.com/enzo
Enzo Fabric Studio
new
60.1Mtokens
4.
Favicon for https://online-gpt.chat/
AI Chat
new
42.4Mtokens
5.
Favicon for https://pcon-solutions.com/planner
pCon.planner - Image studio
new
38.5Mtokens

Frequently asked questions

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and high-fidelity visual synthesis.

The Nano Banana Pro (Gemini 3 Pro Image Preview) documentation on OpenRouter includes the Nano Banana API: Edit Images with Gemini in Code blog post. The quickstart covers API keys and your first request, and the API reference lists every parameter.

Nano Banana Pro (Gemini 3 Pro Image Preview) costs $2.00/M input tokens and $12.00/M output tokens, with separate rates for Cache Read at $0.20/M tokens, Cache Write at $0.375/M tokens, Image Input at $2.00/M tokens, Image Output at $120.00/M tokens, Input Audio at $2.00/M tokens, Input Audio Cache at $0.20/M tokens, and Web Search at $14.00/1K calls.

Nano Banana Pro (Gemini 3 Pro Image Preview) has a 65,536 token context window. It supports up to 32,768 completion tokens.

No. Nano Banana Pro (Gemini 3 Pro Image Preview) does not accept tools, so function calling is unavailable. It also supports structured outputs via a JSON schema in response_format.

Nano Banana Pro (Gemini 3 Pro Image Preview) accepts images and text as input and returns images and text. Up to 14 reference images can be attached to one request for image editing.

Gemini 4 Argon, Nano Banana 2.1, Gemini 3.8 Flash and 26 more are other text models from Google.

Nano Banana Pro (Gemini 3 Pro Image Preview) was released on November 20, 2025.