Google: Nano Banana 2 (Gemini 3.1 Flash Image)
google/gemini-3.1-flash-image
Our take
AI-assisted analysis based on the sources below. Suitability is an editorial assessment; test it on your own workload.
According to its OpenRouter catalog listing, google/gemini-3.1-flash-image, also listed as Nano Banana 2, is a Google model that accepts text and image inputs and produces text and image outputs, positioned for image generation and editing. The catalog describes it as offering Pro-level visual quality at Flash speed, which is a vendor claim rather than a measured result. It supports optional reasoning at several effort levels and a context length of 131,072 tokens. An independent model card was not available in this source pack, so capabilities are catalog-reported.[1]
Strengths
- Handles both text and image inputs and outputs, fitting generation and editing workflows per the catalog.[1]
- Optional reasoning enabled by default at minimal effort, with none and high also selectable.[1]
- Large 131,072-token context plus seed, structured outputs, and response_format parameters for controlled use.[1]
Limitations
- Evidence is catalog-only from OpenRouter; no independent model card was supplied, so claims are unverified.[1]
- No benchmark results are provided in the source; real-world quality and latency need workload validation.[1]
- License terms, safety behavior, and deployment requirements are not documented in this evidence.[1]
Where to use it
- Worth evaluating for image generation and editing tasks that mix text prompts with visual inputs.[1]
- Candidate for pipelines needing reproducible outputs via seed and structured output parameters.[1]
- Potentially suited to latency-sensitive visual tasks, given the catalog's speed positioning; test on your data.[1]
Sources
- [1] OpenRouter catalog · Google: Nano Banana 2 (Gemini 3.1 Flash Image)Sources checked: Nov 13, 2026
About this model
Description below is the original text supplied by OpenRouter, shown in the source language.
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...
Specifications
- Model ID
- google/gemini-3.1-flash-image
- Canonical ID
- google/gemini-3.1-flash-image-20260528
- Creator
- Added to OpenRouter
- 18.06.2026
- Context length
- 131,072
- Modality
- text+image->text+image
- Input modalities
- image, text
- Output modalities
- image, text
- Token pricing
- No per-token price in the source snapshot — see OpenRouter for the billing unit
- Knowledge cutoff
- —
- Expiration date
- —
Tasks and capabilities
A grade appears only where the source supplies a matching measurement for that task, the model is active and the cohort holds at least 10 comparable models. The capability column lists facts the source declares — supported formats, reasoning and tool parameters — which are not measured quality.
| Task | Grade | Source-declared capability |
|---|---|---|
| General quality | No measurement | reasoning: optional · default minimal · efforts: high, minimal, none · parameters: include_reasoning, reasoning, reasoning_effort |
| Coding | No measurement | — |
| Agents | No measurement | parameters: structured_outputs |
| Writing | No measurement | output: text |
| Reasoning | No measurement | reasoning: optional · default minimal · efforts: high, minimal, none · parameters: include_reasoning, reasoning, reasoning_effort |
| Document analysis | No measurement | — |
| Vision | No measurement | input: image |
| Image generation | No measurement | output: image |
| Audio | No measurement | — |
| Video | No measurement | — |
| Embeddings | No measurement | — |
Evaluations
No evaluations are supplied for this model.
How grades work
Each letter grade compares a model only against other models scored by the same source and metric in the current snapshot. S means the top 10%, A the next 20%, B the next 30%, C the rest. Models without a published measurement are shown as not rated — a supported format alone never implies measured quality.
- S — S — top 10% of the cohort
- A — A — next 20% of the cohort
- B — B — next 30% of the cohort
- C — C — below the B band
Providers
Optional live provider statistics from OpenRouter. Missing values are unknown, not zero.
| Provider | Context length | Price in /1M | Price out /1M | Latency p50 (30m, s) | Throughput p50 (30m, tok/s) | Uptime (30m) |
|---|---|---|---|---|---|---|
| Google AI Studio | 65,536 | — | — | — | — | — |
| 131,072 | — | — | — | — | 100% | |
| 131,072 | — | — | — | — | — |
Provider data retrieved: 13.11.2026
Related articles
No published articles identify this model yet.