Gemini 2.5 Flash Image is optimized for image understanding and generation, offering a balance of price and performance with fast and efficient image generation and editing capabilities.
Capabilities
Details
gemini-2.5-flash-image
Ready to integrate?
Access gemini-2.5-flash-image via our unified API.
Providers & Pricing (4)
Nano Banana is available from 4 providers, with per-image pricing starting at $0.039 through fal.ai.
fal/gemini-2.5-flash-image
replicate/gemini-2.5-flash-image
gemini/gemini-2.5-flash-image
Input
Output
vertex/gemini-2.5-flash-image
Input
Output
Provider Performance
Fastest generation through gemini at 8,845ms median latency with 92.3% success rate.
Aggregated from real API requests over the last 30 days.
Generation Time
Success Rate
Time to First Byte
Provider Rankings
| # | Provider | p50 Gen Time | p95 Gen Time | Success Rate | TTFB (p50) |
|---|---|---|---|---|---|
| 1 | gemini | 8,845ms | 14,071ms | 92.3% | 8,812ms |
gemini-2.5-flash-image-preview API OpenAI-compatible
Integrate Nano Banana into your workflow via Lumenfall’s OpenAI-compatible API to perform scalable text-to-image generation and complex image editing tasks.
https://api.lumenfall.ai/openai/v1
gemini-2.5-flash-image
Text to Image Generate
Create images from text descriptions
curl -X POST \
https://api.lumenfall.ai/openai/v1/images/generations \
-H "Authorization: Bearer $LUMENFALL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-2.5-flash-image",
"prompt": "A serene mountain landscape at sunset",
"size": "1024x1024"
}'
# Response:
# { "created": 1234567890, "data": [{ "url": "https://...", "revised_prompt": "..." }] }
import OpenAI from 'openai';
const client = new OpenAI({
apiKey: 'YOUR_API_KEY',
baseURL: 'https://api.lumenfall.ai/openai/v1'
});
const response = await client.images.generate({
model: 'gemini-2.5-flash-image',
prompt: 'A serene mountain landscape at sunset',
size: '1024x1024'
});
// { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }
console.log(response.data[0].url);
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.lumenfall.ai/openai/v1"
)
response = client.images.generate(
model="gemini-2.5-flash-image",
prompt="A serene mountain landscape at sunset",
size="1024x1024"
)
# { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }
print(response.data[0].url)
Image Editing Edit
Transform existing images with text instructions
curl -X POST \
https://api.lumenfall.ai/openai/v1/images/edits \
-H "Authorization: Bearer $LUMENFALL_API_KEY" \
-F "model=gemini-2.5-flash-image" \
-F "[email protected]" \
-F "prompt=Add a starry night sky to this image" \
-F "size=1024x1024"
# Response:
# { "created": 1234567890, "data": [{ "url": "https://...", "revised_prompt": "..." }] }
import OpenAI from 'openai';
import fs from 'fs';
const client = new OpenAI({
apiKey: 'YOUR_API_KEY',
baseURL: 'https://api.lumenfall.ai/openai/v1'
});
const response = await client.images.edit({
model: 'gemini-2.5-flash-image',
image: fs.createReadStream('source.png'),
prompt: 'Add a starry night sky to this image',
size: '1024x1024'
});
// { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }
console.log(response.data[0].url);
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.lumenfall.ai/openai/v1"
)
response = client.images.edit(
model="gemini-2.5-flash-image",
image=open("source.png", "rb"),
prompt="Add a starry night sky to this image",
size="1024x1024"
)
# { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }
print(response.data[0].url)
Benchmarks
Nano Banana (Gemini 2.5 Flash Image) holds an Elo of 1251 in text-to-image generation, ranking 11th overall. It shows significant strength in image editing tasks, achieving an Elo of 1227 and securing the #5 position globally.
Competition Results
Neutral Expression to Genuine Smile
Image Editing{
"action": "image_edit",
"reference": "uploaded neutral portrait",
"change": "Warm genuine Duchenne smile: lips curved up, slight natural teeth, soft eye crinkles, subtle cheek raise",
"details": "Realistic smiling skin (dimples if present, soft cheek shadows), slightly brighter eyes; keep exact eye shape/color/iris",
"preserve_exact": "Face identity/structure, eyes/nose/lips/eyebrows, hair, skin texture/pores/freckles, makeup, clothing, head pose, background, lighting, shadows, framing",
"no_changes": "No face shape change, no new features, no gaze shift, no hair/clothing/lighting/background edits",
"style": "Ultra-photorealistic 8K portrait, sharp face focus, natural soft lighting, realistic skin glow"
}
Heroic Super Hero Portrait
Text-to-Image“Hyper-photorealistic full-body portrait of a female superhero standing triumphantly on a New York skyscraper rooftop at golden sunset, wearing a classic modest superhero costume with flowing cape, chest emblem, gloves, and boots in red and blue colors, practical design, short hair, strong determined heroic expression looking into the distance, powerful confident stance with hands on hips and cape billowing dramatically in the wind, detailed urban cityscape background, warm natural sunlight with sharp shadows and fabric highlights, ultra-sharp textures on suit, hair, and concrete, 8K masterpiece, empowering family-friendly style.”
Man and Car in California
Image Editing“Make a photo of the man driving the car down the California coastline”
Bald man challenge
Image Editing“Give the person a full, thick head of natural hair with realistic texture, density, and a natural hairline. Preserve facial features and lighting.”
Victorian Greenhouse Oasis
Text-to-Image“Hyper-photorealistic interior of a lush Victorian glass greenhouse filled with exotic tropical plants, vibrant blooming orchids, tall ferns, colorful butterflies in flight, sunlight filtering through ornate glass roof creating realistic caustics and dew on leaves, intricate iron framework visible, misty atmosphere, 8K masterpiece.”
Over-the-top cartoon caricature
Image Editing“Create a caricature of me and my job. Make it exaggerated and humorous, incorporating my profession as a tv show anchor and my love for dogs and hockey.”
Golden Hour Stroll
Image Editing“Add dynamic motion to this photo: make hair blow in the wind, add leaves flying, energetic and lively feel.”
Geometric Composition
Text-to-Image“A glass cube on a wooden table. Inside the cube is a small blue sphere. On top of the cube sits a red book. A green plant is behind the cube, partially visible through the glass. Soft window light from the left.”
Vintage Cafe Logo
Text-to-Image“Vintage minimalist restaurant logo for "Caffè Florian", retro cloche dome with steam and "Est. 1720" banner, classic typography, warm brown and cream tones, subtle texture on light background, vector emblem style.”
Modern Clean Menu
Text-to-Image“Modern minimalist restaurant menu design, white background with colorful food photos in grid, sections for appetizers/pizza/mains, bold sans-serif fonts, vibrant accents, clean professional layout for casual dining.”
Night Sky Transformation
Image Editing“Change the scene to night: a deep, dark sky with subtle, glistening stars visible behind the mountain.”
Candid Street Photography
Text-to-Image“A candid street photo of an elderly Japanese man repairing a red bicycle in light rain, reflections on wet pavement, shallow depth of field, 50mm lens, natural skin texture, imperfect framing, motion blur from passing cars, cinematic but realistic, no stylization.”
Apollo 11: Journey to Tranquility
Text-to-Image“Create a clean, modern vector infographic poster about the Apollo 11 mission. NASA-inspired palette (navy, white, muted red, light gray). Flat-vector style, crisp lines, consistent iconography, subtle gradients only. Steps (stop at landing): 1. Launch (Saturn Vicon) 2. Earth Orbit (Earth + orbit ring icon) 3. Translunar (trajectory arc icon) 4. Lunar Orbit (Moon + orbit ring icon) 5. Descent (lunar module descending icon) 6. Landing (lunar module on the surface icon) Small supporting elements (minimal text): • Crew strip: three silhouette icons with only last names: Armstrong, Aldrin, Collins. • Landing site marker: Moon pin labeled "Tranquility" only. Layout constraints: generous margins, large readable labels, clean background with subtle stars. Vector-only, print-poster look, high resolution.”
Intricate Floral Mandala
Text-to-Image“Perfectly symmetrical mandala made entirely of real flowers, petals, leaves, fruits, and seeds in vibrant natural colors, intricate layered patterns with radial symmetry, top-down view on a soft neutral background, hyper-detailed organic textures and subtle shadows, photorealistic, 8K masterpiece.”
Isometric Miniature Diorama Scenes
Text-to-Image“Create a clear, 45° top-down isometric miniature 3D cartoon scene of Japan's signature dish: sushi, with soft refined textures, realistic PBR materials, gentle lighting, on a small raised diorama base with minimal garnish and plate. Solid light blue background. At top-center: 'JAPAN' in large bold text, 'SUSHI' below it, small flag icon. Perfectly centered, ultra-clean, high-clarity, square format.”
Studio Ghibli Anime Style
Image Editing“Transform this photo into a Studio Ghibli–inspired illustration. Use soft pastel colors, hand-painted textures, gentle lighting, dreamy backgrounds, and a warm, nostalgic mood”
Fantasy Warrior
Text-to-Image“Close portrait of a battle-worn paladin in ornate engraved plate armor, hair braided with small beads, faint scars and dirt on the skin, warm torchlight reflecting off metal, shallow depth of field, bokeh sparks, lifelike eyes, highly detailed texture on leather straps and cloth underlayer.”
Fantasy Warrior
Text-to-Image“Close portrait of a battle-worn paladin in ornate engraved plate armor, hair braided with small beads, faint scars and dirt on the skin, warm torchlight reflecting off metal, shallow depth of field, bokeh sparks, lifelike eyes, highly detailed texture on leather straps and cloth underlayer.”
Best for
All categoriesGallery
View all 22 imagesNano Banana FAQ
Nano Banana starts at $0.039 per image through Lumenfall. Pricing varies by provider. Lumenfall does not add any markup to provider pricing.
Nano Banana supports Batch and System prompt. It accepts text and image input and produces text and image output.
You can use Nano Banana through Lumenfall's OpenAI-compatible API. Send requests to the unified endpoint with model ID "gemini-2.5-flash-image". Code examples are available in Python, JavaScript, and cURL.
Nano Banana is available through fal.ai, Gemini API, Replicate, and Vertex AI on Lumenfall. Lumenfall automatically routes requests to the best available provider.
Overview
Gemini 2.5 Flash Image is a multimodal model developed by Google designed for high-velocity image generation and visual reasoning. It functions as an efficient mid-tier option in the Gemini lineup, prioritizing low latency and cost-effectiveness while maintaining the ability to process both text and image inputs. This model is distinctive for its dual-purpose nature, acting as both an image generator and a visual analysis tool within a single architecture.
Strengths
- Rapid Iterative Generation: Optimized for speed, the model excels at “flash” generation cycles where low latency is required for real-time applications or high-volume batch processing.
- Instruction Following: Strong adherence to system prompts allows for precise control over stylistic constraints and compositional requirements during the image creation process.
- Multimodal Reasoning: Unlike pure-play diffusion models, it can ingest existing images as context to perform editing, variations, or descriptive analysis.
- Resource Efficiency: Offers a significantly lower price point ($0.039 starting price) compared to larger-parameter models, making it viable for large-scale production deployments.
Limitations
- Visual Complexity: While fast, it may lack the intricate fine-detail rendering (such as complex micro-textures or hyper-realistic human anatomy) found in larger, “Pro” tier models.
- Compositional Nuance: In very dense scenes with numerous specific spatial requirements, the model may occasionally prioritize speed over exact adherence to complex spatial arrangements.
- Niche Stylization: Without specialized LoRA support or fine-tuning, it may struggle with highly specific or avant-garde artistic styles compared to dedicated community-driven generation models.
Technical Background
Released in October 2025, Gemini 2.5 Flash Image is built on the Gemini 2.x transformer-based architecture family. It utilizes a unified multimodal training approach that treats visual tokens and text tokens within the same latent space, enabling seamless transitions between understanding an input image and generating a visual response. The model is specifically tuned for distilled inference, reducing the computational overhead typically associated with large-scale vision-language models.
Best For
This model shines in scenarios requiring high-throughput asset generation, such as e-commerce product background variations, social media content scaling, and rapid prototyping for UI/UX concepts. It is also well-suited for applications that combine image analysis with immediate visual feedback, such as describing a scene and then modifying it based on user feedback.
Nano Banana (Gemini 2.5 Flash Image) is available for testing and deployment through Lumenfall’s unified API and interactive playground, allowing you to integrate its fast generational capabilities into your existing workflows alongside other models in the Gemini family.
Top Matchups
See how Nano Banana performs head-to-head against other AI image models, ranked by community votes in blind comparisons.
vs Stable Diffusion 3.5 Large
Apollo 11: Journey to Tranquility
25% W · 75% L
vs Lucid Origin
Fantasy Warrior
0% W · 33% L · 67% T
vs FLUX.2 [flex]
Heroic Super Hero Portrait
33% W · 33% L · 33% T
vs Nano Banana Pro
Bald man challenge
33% W · 0% L · 67% T
vs Nano Banana Pro
Man and Car in California
0% W · 100% L
Try Nano Banana in Playground
Generate images with custom prompts — no API key needed.