What is nano-banana-2-edit?

The editing capability of Gemini 3.1 Flash Image (Nano Banana 2) - conversational, multi-reference image editing at Flash speed.

What is Nano Banana 2?

Gemini 3.1 Flash Image - Google's image model with Pro quality at Flash speeds.

When was it released?

February 25-26, 2026; GA May 28, 2026.

Nano Banana 2

99.9% SLA
Official Discounts
Pay-as-you-go
Fast & Low Latency

Brand:

Price: $0.0165 / image

Integrate this model with one task-based API flow

Nano Banana 2 is Google's image generation model released February 25-26, 2026 - Pro-tier quality at Flash speeds, with up to 14 reference images, 512px-to-4K resolution, and conversational editing. It became the default image model in the Gemini app and reached GA in May 2026. The examples below are rendered from Nano Banana 2, the current gateway base URL, and the selected public model contract using the active example "Replace the vehicle on the right with a black sports car.".

Input mode

X-API-Key on every request

POST /api/v1/openapi/task

GET /api/v1/openapi/task/status/{task_id}

Async task workflow

Single code window

Switch language once. Each example already includes both the task creation request and the task status polling request.

Unified Example

API_KEY="<API_KEY>"
BASE_URL="https://api.musespark.ai"
REQUEST_BODY='{
  "model_id": "nano-banana-2",
  "parameters": {
    "prompt": "Replace the vehicle on the right with a black sports car.",
    "batch_size": 1,
    "image_urls": [
      "<IMAGE_URL>"
    ],
    "google_search": false,
    "google_image_search": false,
    "aspect_ratio": "1:1",
    "resolution": "1K"
  }
}'

CREATE_RESPONSE=$(curl --request POST "$BASE_URL/api/v1/openapi/task" \
  --header "X-API-Key: $API_KEY" \
  --header "Content-Type: application/json" \
  --data-raw "$REQUEST_BODY")

TASK_ID="<TASK_ID_FROM_CREATE_RESPONSE>"

curl "$BASE_URL/api/v1/openapi/task/status/$TASK_ID" \
  --header "X-API-Key: $API_KEY"

Request and response JSON become the documentation

Keep the payload and task status envelope as the primary contract. Field descriptions, optionality, and enum hints now live inline as JSON comments.

Request Body

Caller payload

This is the request envelope accepted by the public gateway for the selected model contract.

Field comments come from the current model schema and selected slice. Fixed slice parameters stay removed from the caller payload.

{

"model_id": "nano-banana-2",// target model

"parameters": {

"prompt": "Replace the vehicle on the right with a black sports car.",// describe the image you want to generate

"batch_size": 1,// standard quantity control field. The allowed range for this item is 1-15 · min 1 · max 15

"image_urls": [// reference images as public HTTP(S) URLs or complete image data URIs. Maximum 14 images; at most 10 MB per image. Supports JPEG, PNG, and WebP · max 14 · max items 14

"<IMAGE_URL>"

],

"google_search": false,// allow Google Search to gather information for the prompt

"google_image_search": false,// allow Google Image Search to find reference images

"aspect_ratio": "1:1",// choose the output image aspect ratio · enum: Auto | 1:1 | 3:2 | 2:3 | 4:3 | 3:4 | 16:9 | 9:16 | 5:4 | 4:5 | 21:9 | 1:4 | 4:1 | 1:8 | 8:1

"resolution": "1K"// choose the output image resolution · enum: 0.5K | 1K | 2K | 4K

}

Response Body

Gateway response

This is the task status response you will query with task_id until the task reaches a terminal state.

Poll every 2-5 seconds and stop once status becomes completed, failed, cancelled.

{

"code": 200,// 200 on success

"msg": "success",

"data": {

"task_id": "task_01HQX8N2QJ0YQ8Q0T7G6N4V6K2",// use for status polling

"status": "completed",// enum: queued | running | completed | failed | cancelled

"progress": 100,// 0-100 if available

"completed_at": 1760000000,// unix timestamp

"expires_at": 1760001800,// unix timestamp

"result": {

"output_urls": [// generated files

"https://cdn.example.com/output.png"

]

}

Nano Banana 2: Google's Default Image Model - Full Review

Nano Banana 2 (this catalog entry: nano-banana-2, officially Gemini 3.1 Flash Image) is Google's image generation model released February 25-26, 2026 - Pro-tier quality at Flash speeds, with up to 14 reference images, 512px-to-4K resolution, and conversational editing. It became the default image model in the Gemini app and reached GA in May 2026.

Here's the short version: Nano Banana 2 is the model most people should default to in 2026. It took everything good about Nano Banana Pro (quality, references, understanding) and made it fast enough for daily iteration - which is why Google made it the default across the Gemini app's Fast and Slow tiers. The honest caveats: Pro remains the fidelity pick for native 2K/4K production output, and "Pro quality at Flash speeds" still needs your own quality testing on complex prompts.

This guide covers model overview, core features, technical specifications, capability comparison, core advantages, recommended use cases, example prompts, selection recommendations, workflow, and my verdict.

Quick Facts

Attribute	Value
Catalog slug	`nano-banana-2`
Official model	Gemini 3.1 Flash Image
Developer	Google DeepMind
Release	February 25-26, 2026
Positioning	Pro quality at Flash speeds
References	Up to 14
Resolution	512px - 4K
Editing	Conversational
Status	GA May 28, 2026; Gemini app default
Self-hosting	No

Model Overview
Core Features
Technical Specifications
Capability Comparison
Core Advantages
Recommended Use Cases
Example Prompts
Selection Recommendations
Workflow: Generate, Edit, Iterate
The Bottom Line
FAQ
Sources & Further Reading

1. Model Overview

Nano Banana 2 launched February 25-26, 2026 as Gemini 3.1 Flash Image - Google's statement that flash-tier image generation no longer had to sacrifice quality. The positioning was direct: bring the high-speed intelligence of Gemini Flash to visual generation, making rapid edits and iteration possible.

The model immediately became the Gemini app's default across Fast and Slow tiers - the first time a Flash-tier image model outranked Pro for daily use - and reached general availability May 28, 2026 via the Gemini Enterprise Agent Platform.

For this catalog entry, Nano Banana 2 is the review target as Google's default image model - the volume tier that most users and most pipelines should standardize on.

2. Core Features

Pro quality at Flash speeds. The capability statement.

Up to 14 reference images. The full blend capacity of the family.

512px to 4K. Resolution range for any format.

Conversational editing. Multi-turn refinement.

Character consistency. Identity across edits.

Default positioning. Gemini app's default model.

Enterprise GA. Managed access via Gemini Enterprise Agent Platform.

3. Technical Specifications

Specification	Detail
Model	Gemini 3.1 Flash Image (Nano Banana 2)
Release	February 25-26, 2026
GA	May 28, 2026
References	Up to 14
Resolution	512px - 4K
Editing	Conversational
Access	Gemini app, API, enterprise
Self-hosting	No

Note: The preview model (gemini-3.1-flash-image-preview) retired June 2026; use the GA model ID.

4. Capability Comparison

Capability	Nano Banana 2	Nano Banana Pro	Nano Banana (original)	GPT-image-2
Speed	Flash	Premium	Flash	Slower
References	Up to 14	Up to 14	Up to 3	Multi
Resolution	Up to 4K	2K/4K native	Standard	4K (beta)
Conversational	Yes	Yes	Yes	Limited
Status	Default	Premium	Legacy	Competitor

Reading the table honestly: Nano Banana 2 is the daily default - 14 references at Flash speed. Pro remains the fidelity tier for native production output; GPT-image-2 the design competitor.

5. Core Advantages

Speed without the quality tax. Pro-class results at Flash speed.
14-reference blending. The family's full capacity.
Conversational iteration. Edit like a chat.
Resolution range. 512px to 4K.
Default status. The most-tested surface in Google's lineup.
Enterprise GA. Governed deployment.

6. Recommended Use Cases

Daily creative iteration: fast generate-edit loops.
Multi-image composition: up to 14 references.
Gemini app workflows: the default model for consumers.
Enterprise image generation: GA managed access.
Prototyping: rapid exploration before Pro renders.

7. Example Prompts

1. Generation

text

A ceramic teapot on a wooden table, steam rising, warm window light,

cinematic composition.

2. Multi-reference

text

Combine these images: product from 1, lighting from 2, scene from 3,

into one seamless image.

3. Conversational edit

text

Turn 1: change the background to a desert at sunset.

Turn 2: add distant mountains.

Turn 3: keep the subject, increase contrast.

Prompting guidance:

State constants before changes.
Map references explicitly.
Iterate one change per turn.

8. Selection Recommendations

Choose Nano Banana 2 if:

You want the default tier: speed, 14 references, up to 4K.
You are building in the Google ecosystem.

Choose Nano Banana Pro if:

Native 2K/4K production output is the deliverable.

Choose GPT-image-2 if:

Design-grade text and OpenAI/Azure matter more.

9. Workflow: Generate, Edit, Iterate

Rendering flowchart...

Practical notes:

Default to Nano Banana 2; escalate to Pro for finals.
Keep conversations on one image.
Validate at final resolution.

10. The Bottom Line

Verdict: Buy - the default image model, and the default is right. Nano Banana 2 delivers Pro-tier capability at Flash speed, with 14 references, conversational editing, and 512px-to-4K output - and Google's decision to make it the Gemini app default reflects its quality-per-effort ratio. Pro still wins for native production fidelity, and GPT-image-2 for design text. For everything else in 2026, this is the model to standardize on.

Sources & Further Reading

Information reflects Google's official announcements as of August 2026. Defaults and availability evolve; verify current surfaces.

Why Choose MusePark?

Model & Modality	Credits / image	Our Price (USD) / image
Resolution: 0.5KResolution: 0.5K	1.65 credits / image	$0.0165 / image
Resolution: 2KResolution: 2K	2.2 credits / image	$0.022 / image
Resolution: 4KResolution: 4K	2.75 credits / image	$0.0275 / image
Resolution: 1KResolution: 1K	1.65 credits / image	$0.0165 / image

Nano Banana 2: Google's Default Image Model - Full Review

Quick Facts

Attribute	Value
Catalog slug	`nano-banana-2`
Official model	Gemini 3.1 Flash Image
Developer	Google DeepMind
Release	February 25-26, 2026
Positioning	Pro quality at Flash speeds
References	Up to 14
Resolution	512px - 4K
Editing	Conversational
Status	GA May 28, 2026; Gemini app default
Self-hosting	No

Model Overview
Core Features
Technical Specifications
Capability Comparison
Core Advantages
Recommended Use Cases
Example Prompts
Selection Recommendations
Workflow: Generate, Edit, Iterate
The Bottom Line
FAQ
Sources & Further Reading

1. Model Overview

For this catalog entry, Nano Banana 2 is the review target as Google's default image model - the volume tier that most users and most pipelines should standardize on.

2. Core Features

Pro quality at Flash speeds. The capability statement.

Up to 14 reference images. The full blend capacity of the family.

512px to 4K. Resolution range for any format.

Conversational editing. Multi-turn refinement.

Character consistency. Identity across edits.

Default positioning. Gemini app's default model.

Enterprise GA. Managed access via Gemini Enterprise Agent Platform.

3. Technical Specifications

Specification	Detail
Model	Gemini 3.1 Flash Image (Nano Banana 2)
Release	February 25-26, 2026
GA	May 28, 2026
References	Up to 14
Resolution	512px - 4K
Editing	Conversational
Access	Gemini app, API, enterprise
Self-hosting	No

Note: The preview model (gemini-3.1-flash-image-preview) retired June 2026; use the GA model ID.

4. Capability Comparison

Capability	Nano Banana 2	Nano Banana Pro	Nano Banana (original)	GPT-image-2
Speed	Flash	Premium	Flash	Slower
References	Up to 14	Up to 14	Up to 3	Multi
Resolution	Up to 4K	2K/4K native	Standard	4K (beta)
Conversational	Yes	Yes	Yes	Limited
Status	Default	Premium	Legacy	Competitor

Reading the table honestly: Nano Banana 2 is the daily default - 14 references at Flash speed. Pro remains the fidelity tier for native production output; GPT-image-2 the design competitor.

5. Core Advantages

Speed without the quality tax. Pro-class results at Flash speed.
14-reference blending. The family's full capacity.
Conversational iteration. Edit like a chat.
Resolution range. 512px to 4K.
Default status. The most-tested surface in Google's lineup.
Enterprise GA. Governed deployment.

6. Recommended Use Cases

Daily creative iteration: fast generate-edit loops.
Multi-image composition: up to 14 references.
Gemini app workflows: the default model for consumers.
Enterprise image generation: GA managed access.
Prototyping: rapid exploration before Pro renders.

7. Example Prompts

1. Generation

text

A ceramic teapot on a wooden table, steam rising, warm window light,

cinematic composition.

2. Multi-reference

text

Combine these images: product from 1, lighting from 2, scene from 3,

into one seamless image.

3. Conversational edit

text

Turn 1: change the background to a desert at sunset.

Turn 2: add distant mountains.

Turn 3: keep the subject, increase contrast.

Prompting guidance:

State constants before changes.
Map references explicitly.
Iterate one change per turn.

8. Selection Recommendations

Choose Nano Banana 2 if:

You want the default tier: speed, 14 references, up to 4K.
You are building in the Google ecosystem.

Choose Nano Banana Pro if:

Native 2K/4K production output is the deliverable.

Choose GPT-image-2 if:

Design-grade text and OpenAI/Azure matter more.

9. Workflow: Generate, Edit, Iterate

Rendering flowchart...

Practical notes:

Default to Nano Banana 2; escalate to Pro for finals.
Keep conversations on one image.
Validate at final resolution.

10. The Bottom Line

Verdict: Buy - the default image model, and the default is right. Nano Banana 2 delivers Pro-tier capability at Flash speed, with 14 references, conversational editing, and 512px-to-4K output - and Google's decision to make it the Gemini app default reflects its quality-per-effort ratio. Pro still wins for native production fidelity, and GPT-image-2 for design text. For everything else in 2026, this is the model to standardize on.

Sources & Further Reading

Information reflects Google's official announcements as of August 2026. Defaults and availability evolve; verify current surfaces.

Nano Banana 2