Nano Banana 2 (Gemini 3.1 Flash Image)
Nano Banana 2 (Gemini 3.1 Flash Image) is worth evaluating for long context and vision when its provider route and context window match the workload.
Use it for
- Teams evaluating long context and vision
- Workloads that can use a 131k context window
- Buyers comparing 2 tracked provider routes
Do not use it for
- Strict JSON or tool-calling flows
- Family
- Gemini 3.1
- Released
- 2026-05-28
- Context
- 131k
- Max output
- 32,768
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-01
- Specialization
- image-generation
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 2 routes · Google AI Studio
About
Nano Banana 2 is the GA Gemini 3.1 Flash Image model for image generation and editing through the Gemini API. It accepts text, image, PDF, and video inputs, adds video-to-image generation for thumbnails, posters, and infographics, returns text and images, supports search grounding and thinking, and replaces the gemini-3.1-flash-image-preview model retiring on 2026-06-25.
Nano Banana 2 (Gemini 3.1 Flash Image) is a proprietary model in the Gemini 3.1 family. The structured metadata tracks a 131k-token context window, multimodal input, and reasoning. This page tracks provider routes through Google AI Studio and Prodia, with the cheapest tracked route listed at $0.5 input and $60 output per 1M tokens. No headline benchmark score is tracked for Nano Banana 2 (Gemini 3.1 Flash Image) yet.
Top use-case fit
Long context
Included by capability and metadata signals in the decision map.
Vision
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare all 2Compare API pricing across 2 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Batch in / out | Route |
|---|---|---|---|---|
| Google AI Studio | $0.500 | $60.00 | $0.250 / $30.00 | Serverless |
| Prodia | - | - | - | ServerlessPartial |
Available via routers & gateways(13)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
gemini-3.1-flash-imageFrequently asked questions
What is the context window of Nano Banana 2 (Gemini 3.1 Flash Image)?
Nano Banana 2 (Gemini 3.1 Flash Image) has a context window of 131k tokens.
What is the max output of Nano Banana 2 (Gemini 3.1 Flash Image)?
Nano Banana 2 (Gemini 3.1 Flash Image) can generate up to 32,768 output tokens.
How much does Nano Banana 2 (Gemini 3.1 Flash Image) cost?
Nano Banana 2 (Gemini 3.1 Flash Image) is available at $0.50/1M input tokens through Google AI Studio.
When was Nano Banana 2 (Gemini 3.1 Flash Image) released?
Nano Banana 2 (Gemini 3.1 Flash Image) was released on 2026-05-28.
Which providers offer Nano Banana 2 (Gemini 3.1 Flash Image)?
Nano Banana 2 (Gemini 3.1 Flash Image) is available from 2 providers: Google AI Studio, Prodia.
Cheapest of 2 routes · Google AI Studio