Gemini 3.1 Flash Image GA Release Details
Google released Gemini 3.1 Flash Image as generally available on May 28, 2026. This article outlines verified specs and evaluation steps.
General Availability Announcement
The original announcement date for this event is May 28, 2026. On this date, Google released gemini-3.1-flash-image (Nano Banana 2) and gemini-3-pro-image (Nano Banana Pro). These releases represent the generally available (GA) versions of Google’s native visual models. The source explicitly identifies these as distinct from previous preview states, marking a shift to standard availability for these specific model identifiers.
Documented Model Specifications
The verified facts establish that Nano Banana 2, identified as Gemini 3.1 Flash Image, accepts text and image inputs and produces image outputs. The context window is recorded as 65,536 tokens, with a maximum output token limit also set at 65,536. Open weights are not confirmed for this model. Pricing information is not provided in the source data. The model belongs to the Gemini family and is provided by Google. No architectural details, such as internal processing methods or deployment requirements, are specified in the available evidence.
- Input Modalities: Text, Image
- Output Modalities: Image
- Context Window: 65,536 tokens
- Max Output Tokens: 65,536 tokens
- Open Weights: Not Confirmed
Evaluation Procedure and Limitations
Engineers should evaluate the model by testing it against specific use cases defined by their application needs. A practical procedure involves generating images from both text prompts and image references to measure consistency and quality. Compare the output resolution and aspect ratio handling against the documented capabilities. Validate that the model responds within expected latency bounds for high-volume scenarios, as the source describes it as optimized for speed. However, the source does not provide benchmark scores, price points, or guaranteed performance metrics. It remains unknown how this model compares quantitatively to other providers' offerings. Do not assume local installation is possible based on the lack of open weights confirmation; access methods must be verified through official API documentation rather than inferred from weight availability.
Primary sources
Frequently asked questions
What is the exact release date for the GA version?
The general availability release occurred on May 28, 2026. This date distinguishes the final GA launch from earlier preview periods mentioned in the changelog history.
Can I install this model locally?
The source records that open weights are not confirmed. It does not state whether local installation is impossible or if API access is mandatory. You must verify current access methods via official channels, as the provided facts do not define hosting arrangements or migration paths.