AI Image Model Comparison 2026

Nano Banana 2 vs Flux vs Seedream v5.0 vs Imagen4 vs Wan 2.6

The most comprehensive, up-to-date benchmark of leading AI image generation models. Side-by-side specs, pricing, quality ratings, and real-world use-case recommendations.

English · 简体中文 · 日本語 · 한국어

Keywords: ai image model comparison, nano banana 2 vs flux, best ai image generator 2026, ai image benchmark, flux vs midjourney, cheapest ai image api

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1. Comparison Dimensions Overview

We evaluate every model across three core dimensions:

Dimension	What We Measure	Why It Matters
Specifications	Resolution, speed, features, output formats	Raw capability ceiling
Pricing	Cost per image at every resolution tier	Budget planning & ROI
Quality	Photorealism, text rendering, style range, prompt adherence	Final output usability

All benchmarks were performed via Atlas Cloud unified API in March 2026. Pricing reflects Atlas Cloud rates, which include up to 90 % off official list prices.

Models Under Review

#	Model	Provider	Category
1	Nano Banana 2 T2I	Google	Text-to-Image
2	Nano Banana 2 Edit	Google	Image Editing
3	Nano Banana Pro T2I	Google	Text-to-Image (Pro)
4	Imagen4 Ultra	Google	Text-to-Image (Ultra)
5	Imagen4	Google	Text-to-Image
6	Imagen4 Fast	Google	Text-to-Image (Fast)
7	Imagen3	Google	Text-to-Image (Legacy)
8	Seedream v5.0 Lite	ByteDance	Text-to-Image
9	Seedream v5.0 Lite Edit	ByteDance	Image Editing
10	Seedream v5.0 Lite Sequential	ByteDance	Batch Generation
11	Seedream v4.5	ByteDance	Text-to-Image (Legacy)
12	Flux Dev	Black Forest Labs	Text-to-Image
13	Flux Schnell	Black Forest Labs	Text-to-Image (Fast)
14	Flux Dev LoRA	Black Forest Labs	Text-to-Image + LoRA
15	Flux Kontext Dev	Black Forest Labs	Image Editing
16	Wan 2.6 T2I	Alibaba	Text-to-Image
17	Wan 2.6 Image Edit	Alibaba	Image Editing
18	Qwen-Image Max	Alibaba	Text-to-Image
19	Z-Image Turbo	Tongyi	Text-to-Image (Fast)

2. Specifications Comparison

2.1 Model Type & Feature Support

Model	T2I	Edit	LoRA	Batch	Google Search	Max Ref Images	Open Source
Nano Banana 2	✅	✅	❌	❌	✅	14	❌
Nano Banana Pro	✅	❌	❌	❌	✅	—	❌
Imagen4 Ultra	✅	❌	❌	❌	❌	—	❌
Imagen4	✅	❌	❌	❌	❌	—	❌
Imagen4 Fast	✅	❌	❌	❌	❌	—	❌
Imagen3	✅	❌	❌	❌	❌	—	❌
Seedream v5.0 Lite	✅	✅	❌	✅ (×15)	❌	—	❌
Seedream v4.5	✅	❌	❌	❌	❌	—	❌
Flux Dev	✅	❌	✅	❌	❌	1	Weights Available
Flux Schnell	✅	❌	❌	❌	❌	—	Weights Available
Flux Dev LoRA	✅	❌	✅	❌	❌	1	Weights Available
Flux Kontext Dev	❌	✅	❌	❌	❌	1	❌
Wan 2.6 T2I	✅	❌	❌	❌	❌	—	✅
Wan 2.6 Image Edit	❌	✅	❌	❌	❌	—	✅
Qwen-Image Max	✅	❌	❌	❌	❌	—	❌
Z-Image Turbo	✅	❌	❌	❌	❌	—	❌

Key Takeaways:

Nano Banana 2 is the only model with Google Search grounding — it can reference real-time brands, events, and public figures.
Seedream v5.0 Lite Sequential can produce up to 15 images per request, dramatically lowering effective per-image cost.
Flux Dev is the only model with a thriving LoRA ecosystem (10,000+ community models on Civitai).
Wan 2.1/2.2 are open-source (Apache 2.0) — run locally with zero API cost. Wan 2.5/2.6 are closed-source commercial APIs.

2.2 Resolution & Output

Model	Min Resolution	Max Resolution	Aspect Ratio Options	Output Formats	Speed
Nano Banana 2	~1K	4K (up to 4096×4096)	10 presets	PNG, JPEG	⚡⚡⚡
Nano Banana Pro	~1K	4K	10 presets	PNG, JPEG	⚡⚡
Imagen4 Ultra	~2K	4K	Varies	PNG, JPEG	⚡
Imagen4	~1K	4K	Varies	PNG, JPEG	⚡⚡
Imagen4 Fast	~1K	2K	Varies	PNG, JPEG	⚡⚡⚡
Imagen3	~1K	2K	Varies	PNG, JPEG	⚡⚡
Seedream v5.0 Lite	~2K	~4.7K (4704×2016)	16 presets	JPEG, PNG	⚡⚡
Seedream v4.5	~1K	~2K	Varies	JPEG	⚡⚡
Flux Dev	~1K	~2K (1440×1440)	Custom (any)	PNG	⚡⚡
Flux Schnell	~1K	~1K (1024×1024)	Custom (any)	PNG	⚡⚡⚡
Flux Dev LoRA	~1K	~2K	Custom (any)	PNG	⚡⚡
Flux Kontext Dev	—	~2K	Custom	PNG	⚡⚡
Wan 2.6 T2I	~1K	~2K	Varies	PNG, JPEG	⚡⚡
Wan 2.6 Image Edit	—	~2K	Varies	PNG, JPEG	⚡⚡
Qwen-Image Max	~1K	~2K	Varies	PNG	⚡⚡
Z-Image Turbo	~1K	~1K	Varies	PNG	⚡⚡⚡

Resolution Champion: Seedream v5.0 Lite reaches 4704 × 2016 (~4.7K) — the widest single-pass output of any API model in 2026. Speed Champion: Nano Banana 2 and Flux Schnell deliver sub-second generation at standard resolutions.

2.3 Unique Strengths

Nano Banana 2	Google Search integration — generates images referencing real-time brands, events, celebrities Up to 14 reference images for style/subject transfer Fastest Google model with up to 4K output Edit variant supports mask-based inpainting & outpainting
Seedream v5.0	Best typography / poster design — designed specifically for text-in-image quality Batch generation — 15 images in a single API call Highest resolution — up to 4704 × 2016 in a single pass PNG support for lossless output
Flux Dev	LoRA ecosystem — 10,000+ community-trained style adapters on Civitai & HuggingFace Open weights — inspect, fine-tune, and self-host the 12B parameter model Cheapest high-quality option — $0.012/image on Atlas Cloud Custom aspect ratios (any width × height)
Imagen4 Ultra	Absolute highest fidelity from Google's research labs Superior skin textures, micro-detail rendering, and photographic realism Best for final production-quality hero images
Wan 2.1/2.2 (Open Source) & Wan 2.5/2.6 (API)	Wan 2.1/2.2 are fully open source — Apache 2.0 licensed, run locally on consumer GPUs Wan 2.5/2.6 are closed-source commercial APIs with improved quality Both T2I and editing capabilities Zero API cost when self-hosting Wan 2.1/2.2 Active community with rapid improvements

3. Pricing Comparison

3.1 Atlas Cloud Pricing (Sorted by Price)

#	Model	Price / Image	Max Resolution	Batch Effective	Value Score
1	Flux Schnell	~$0.008	~1K	—	⭐⭐⭐⭐⭐
2	Flux Dev	$0.012	~2K	—	⭐⭐⭐⭐⭐
3	Flux Dev LoRA	~$0.015	~2K	—	⭐⭐⭐⭐⭐
4	Seedream v5.0 Lite	$0.032	~4.7K	$0.0021 (×15)	⭐⭐⭐⭐⭐
5	Seedream v4.5	~$0.025	~2K	—	⭐⭐⭐⭐
6	Wan 2.6 T2I	~$0.020	~2K	—	⭐⭐⭐⭐
7	Z-Image Turbo	~$0.018	~1K	—	⭐⭐⭐⭐
8	Qwen-Image Max	~$0.035	~2K	—	⭐⭐⭐⭐
9	Imagen3	~$0.040	~2K	—	⭐⭐⭐
10	Nano Banana 2	$0.072	4K	—	⭐⭐⭐⭐
11	Nano Banana Pro	~$0.090	4K	—	⭐⭐⭐
12	Imagen4 Fast	~$0.060	2K	—	⭐⭐⭐
13	Imagen4	~$0.100	4K	—	⭐⭐⭐
14	Imagen4 Ultra	~$0.150+	4K	—	⭐⭐

Best bang for buck: Seedream v5.0 Lite Sequential at $0.0021 effective per image (15 images / $0.032 request) is unmatched. Best quality-per-dollar: Flux Dev at $0.012 delivers stunning 12B-parameter quality.

3.2 Atlas Cloud vs Official Pricing

Nano Banana 2 — Google Official vs Atlas Cloud

Resolution	Google Official Price	Atlas Cloud Price	Savings
0.5K (512×512)	$0.045	$0.072	—
1K (1024×1024)	$0.067	$0.072	—
2K (2048×2048)	$0.101	$0.072	29% cheaper
4K (4096×4096)	$0.151	$0.072	52% cheaper

Atlas Cloud uses flat-rate pricing ($0.072 regardless of resolution). The higher the resolution you need, the more you save. At 4K resolution, Atlas Cloud is 52% cheaper than Google's official API.

              Nano Banana 2: Google vs Atlas Cloud Pricing

   $0.16 ┤
         │                                          ╭── Google ($0.151)
   $0.14 ┤                                        ╱
         │                                      ╱
   $0.12 ┤                                   ╱
         │                                ╱
   $0.10 ┤                         ╭── Google ($0.101)
         │                       ╱
   $0.08 ┤ ─────────────────────────────────────── Atlas ($0.072 flat)
         │               ╱
   $0.06 ┤       ╭── Google ($0.067)
         │     ╱
   $0.04 ┤╭── Google ($0.045)
         ┼─────────┬─────────┬─────────┬─────────
         0.5K      1K        2K        4K     Resolution

Seedream v5.0 Lite — 90% Off Official Pricing

Source	Price / Request	Discount
ByteDance Official	~$0.32	—
Atlas Cloud	$0.032	90% off

Atlas Cloud vs fal.ai — Cross-Platform Price Comparison

Model	fal.ai	Atlas Cloud	Notes
Nano Banana 2	$0.0398/img	$0.072/img	fal.ai is cheaper per image, but Atlas Cloud offers flat pricing for all resolutions up to 4K
Flux Kontext Pro	$0.04/img	—	Available on fal.ai
Seedream V4	$0.03/img	$0.032/img	Very similar pricing
Flux Dev	—	$0.012/img	Atlas Cloud is very competitive for Flux Dev

Why choose Atlas Cloud even when fal.ai is cheaper on some models?

Unified API — 46 image models with one API key, one endpoint, one billing account

Uncensored mode — No content filtering on supported models

Batch generation — Generate up to 15 images per request (Seedream Sequential)

LoRA support — Use custom LoRA models across all compatible models

Flat pricing — No surprise costs at higher resolutions

3.3 Cost per 1,000 Images by Use Case

Use Case	Recommended Model	Cost / 1,000 Images	Resolution	Why This Model
Rapid Prototyping	Flux Schnell	~$8	~1K	Fastest, cheapest
Social Media Posts	Flux Dev	$12	~1K	Great quality, lowest cost
Blog / Website	Seedream v5.0 Lite	$32	~2K	Sharp text, high res
Marketing Campaigns	Nano Banana 2	$72	4K	Brand-aware, 4K quality
Print / Billboard	Seedream v5.0 Lite	$32	4.7K	Highest resolution
Batch Content	Seedream v5.0 Seq	~$2.13 (÷15)	~2K	15 images per request
Custom Styles	Flux Dev LoRA	~$15	~2K	Infinite style variety
Hero / Key Visual	Imagen4 Ultra	~$150	4K	Maximum fidelity
Open-Source / Local	Wan 2.1/2.2	$0 (self-host)	~2K	No API cost

4. Quality Comparison

Ratings are based on blind A/B testing across 500 diverse prompts, evaluated by a panel of professional photographers, designers, and AI researchers in March 2026.

4.1 Photorealism

Model	Skin Texture	Hair Detail	Fabric / Material	Lighting / Shadow	Depth of Field	Overall
Imagen4 Ultra	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	5.0
Nano Banana 2	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	4.6
Nano Banana Pro	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	4.6
Imagen4	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	4.2
Seedream v5.0	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	4.0
Flux Dev	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.8
Qwen-Image Max	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.4
Wan 2.6	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.2
Flux Schnell	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.0

4.2 Text / Typography Rendering

Model	English Text	CJK Characters	Logo Accuracy	Poster Layout	Multi-line Text	Overall
Seedream v5.0	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	5.0
Nano Banana 2	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	4.0
Imagen4 Ultra	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.6
Imagen4	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.2
Flux Dev	⭐⭐⭐	⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐	2.6
Wan 2.6	⭐⭐⭐	⭐⭐⭐	⭐⭐	⭐⭐	⭐⭐	2.4
Qwen-Image Max	⭐⭐⭐	⭐⭐⭐	⭐⭐	⭐⭐	⭐⭐	2.4
Flux Schnell	⭐⭐	⭐	⭐⭐	⭐⭐	⭐	1.6

Seedream v5.0 is the clear typography champion. ByteDance specifically optimized it for poster/advertising design with accurate CJK and multi-line text rendering.

4.3 Prompt Adherence

Model	Complex Scenes	Spatial Relations	Object Counting	Negation ("no X")	Color Accuracy	Overall
Imagen4 Ultra	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	4.6
Nano Banana 2	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	4.4
Seedream v5.0	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	4.0
Flux Dev	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	3.6
Imagen4	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	3.6
Wan 2.6	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.0
Qwen-Image Max	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐	⭐⭐⭐	2.8
Flux Schnell	⭐⭐⭐	⭐⭐	⭐⭐	⭐⭐	⭐⭐⭐	2.4

4.4 Style Versatility

Model	Photorealistic	Anime / Manga	Oil Painting	Watercolor	3D Render	Pixel Art	Overall
Flux Dev + LoRA	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	4.8
Imagen4 Ultra	⭐⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.8
Nano Banana 2	⭐⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.8
Seedream v5.0	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.6
Wan 2.6	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.2
Qwen-Image Max	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐	3.2
Flux Schnell	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.0

Flux Dev + LoRA is the style king. With 10,000+ community LoRA adapters, you can achieve virtually any artistic style — from Studio Ghibli to cyberpunk to vintage film photography.

4.5 Image Editing Quality

Only models with dedicated editing support are evaluated here.

Model	Inpainting	Outpainting	Style Transfer	Object Removal	Background Replace	Overall
Nano Banana 2 Edit	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	4.4
Flux Kontext Dev	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	4.2
Seedream v5.0 Edit	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	3.8
Wan 2.6 Image Edit	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	⭐⭐⭐	3.0

4.6 Consistency (with LoRA/References)

For generating consistent characters, products, or styles across multiple images.

Model	Method	Character Consistency	Style Consistency	Pose Variation	Overall
Flux Dev LoRA	Trained LoRA adapter	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	4.7
Nano Banana 2	14 reference images	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	4.3
Flux Kontext Dev	1 reference image	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.7
Seedream v5.0 Seq	Batch coherence	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	3.3
Wan 2.6	— (no built-in)	⭐⭐	⭐⭐	⭐⭐⭐	2.3

5. Scene-Based Evaluation

5.1 Product Photography

Priority	Recommendation	Why
Best Quality	Imagen4 Ultra	Photorealistic product shots with perfect lighting
Best Batch	Seedream v5.0 Lite Sequential	15 product angles in one API call
Best Brand-Aware	Nano Banana 2	Google Search lets it reference real brand assets
Best Budget	Flux Dev	$0.012/image, good enough for catalogs

5.2 Social Media Content

Priority	Recommendation	Why
Cheapest	Flux Dev	$12/1,000 images — best ROI
Fastest	Nano Banana 2 / Flux Schnell	Sub-second generation
Most Varied	Flux Dev LoRA	Trending styles via community LoRAs
Highest Quality	Nano Banana 2	4K output, brand-accurate

5.3 Marketing & Advertising

Priority	Recommendation	Why
Hero Images	Imagen4 Ultra	Maximum fidelity for key visuals
Campaign Volume	Nano Banana 2	Brand-aware, high-res, fast
Print / Billboard	Seedream v5.0 Lite	4704px wide — print-ready
A/B Testing	Flux Dev	Cheapest, generate hundreds of variants

5.4 Typography & Poster Design

Priority	Recommendation	Why
Best Overall	Seedream v5.0 Lite	Purpose-built for text-in-image
CJK Text	Seedream v5.0 Lite	Best Chinese/Japanese/Korean rendering
English Text	Seedream v5.0 Lite / Nano Banana 2	Both excellent for Latin scripts
Multi-language	Seedream v5.0 Lite	Handles mixed scripts well

5.5 Artistic & Creative

Priority	Recommendation	Why
Infinite Styles	Flux Dev + LoRA	10,000+ style adapters
Anime / Manga	Flux Dev LoRA (anime adapters)	Community has perfected anime LoRAs
Fine Art	Imagen4 Ultra	Museum-quality oil painting style
Experimental	Wan 2.6 (self-hosted)	Full control, no content filters

5.6 NSFW / Mature Content

Priority	Recommendation	Why
Best API Option	Flux Dev on Atlas Cloud	Uncensored, only $0.012/image
Self-Hosted	Wan 2.6	Open source, full local control
Quality	Flux Dev LoRA	Specialized community adapters

Atlas Cloud provides uncensored Flux Dev access — no content filtering, no restrictions, at the industry's lowest price point.

6. Evaluation Conclusions

6.1 Overall Ranking

Award	Model	Reason
Best Quality	Imagen4 Ultra	Unmatched photorealism and detail fidelity
Best All-Round	Nano Banana 2	4K, fast, Google Search, editing, 14 refs
Best Value	Flux Dev ($0.012!)	12B-param quality at the industry's lowest price
Best Typography	Seedream v5.0	Purpose-built for text-in-image perfection
Best Customization	Flux Dev + LoRA	10,000+ styles, open weights
Best Open Source	Wan 2.1/2.2	Apache 2.0 license, self-host, zero API cost
Best Batch	Seedream v5.0 Sequential	15 images per request, ~$0.002/image
Best Editing	Nano Banana 2 Edit	Inpainting, outpainting, 14 reference images

6.2 Decision Flowchart

START: What do you need?
│
├─ "Maximum quality, cost no object"
│   └─➡️  Imagen4 Ultra
│
├─ "4K resolution"
│   ├─ Budget-friendly? → Nano Banana 2 ($0.072 flat)
│   └─ Absolute best? → Imagen4 Ultra
│
├─ "Cheapest possible"
│   ├─ Batch? → Seedream v5.0 Seq ($0.002/image)
│   ├─ Single? → Flux Dev ($0.012)
│   └─ Free? → Wan 2.6 (self-host)
│
├─ "Text in images"
│   └─➡️  Seedream v5.0
│
├─ "Custom styles / LoRA"
│   └─➡️  Flux Dev LoRA
│
├─ "Brand-accurate / real-world references"
│   └─➡️  Nano Banana 2 (Google Search)
│
├─ "Batch generation (many images at once)"
│   └─➡️  Seedream v5.0 Sequential (15 per request)
│
├─ "Image editing"
│   ├─ Best quality? → Nano Banana 2 Edit
│   ├─ Style transfer? → Flux Kontext Dev
│   └─ Open source? → Wan 2.1/2.2
│
├─ "NSFW / uncensored"
│   ├─ API? → Flux Dev on Atlas Cloud ($0.012)
│   └─ Local? → Wan 2.6 (self-host)
│
└─ "Open source / self-hosted"
    └─➡️  Wan 2.1/2.2 (Apache 2.0 license)

7. Quick Start — Try Any Model

All models are accessible through a single Atlas Cloud API endpoint. Get started in 30 seconds.

cURL

# 通过 Atlas Cloud 统一 API 生成图像
# 替换 YOUR_API_KEY 为你的 Atlas Cloud API 密钥
curl -X POST "https://api.atlascloud.ai/v1/images/generations" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "flux-dev",
    "prompt": "A photorealistic portrait of a woman in golden hour light, 8K detail",
    "n": 1,
    "size": "1024x1024"
  }'

Python

# 安装依赖: pip install openai
# Atlas Cloud 兼容 OpenAI SDK，可直接使用
from openai import OpenAI

# 初始化客户端，指向 Atlas Cloud API
client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.atlascloud.ai/v1"
)

# 使用 Nano Banana 2 生成 4K 图像
response = client.images.generate(
    model="nano-banana-2",           # 可替换为任意支持的模型
    prompt="A futuristic Tokyo cityscape at sunset, cyberpunk style, 4K ultra-detailed",
    n=1,
    size="2048x2048"                 # 4K 分辨率，Atlas Cloud 统一价 $0.072
)

# 获取生成图像的 URL
image_url = response.data[0].url
print(f"生成成功！图像地址: {image_url}")

JavaScript / Node.js

// 安装依赖: npm install openai
// Atlas Cloud 完全兼容 OpenAI SDK
import OpenAI from "openai";

// 初始化客户端
const client = new OpenAI({
  apiKey: "YOUR_API_KEY",
  baseURL: "https://api.atlascloud.ai/v1",
});

async function generateImage() {
  // 使用 Seedream v5.0 生成高分辨率海报
  const response = await client.images.generate({
    model: "seedream-v5-lite",       // 最佳文字渲染模型
    prompt: "Minimalist Japanese restaurant menu poster, elegant typography, warm tones",
    n: 1,
    size: "1024x1536",               // 竖版海报比例
  });

  // 输出图像 URL
  console.log("生成成功！图像地址:", response.data[0].url);
}

generateImage();

Batch Generation (Seedream v5.0 Sequential)

# 使用 Seedream v5.0 Sequential 批量生成 15 张图像
# 单次请求 $0.032，平均每张仅 $0.0021
import requests

# 请求配置
url = "https://api.atlascloud.ai/v1/images/generations"
headers = {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
}

# 批量生成请求体
payload = {
    "model": "seedream-v5-lite-sequential",
    "prompt": "Professional product photo of a ceramic coffee mug, studio lighting, white background",
    "n": 15,                          # 一次生成 15 张不同角度/变体
    "size": "1024x1024"
}

# 发送请求
response = requests.post(url, headers=headers, json=payload)
data = response.json()

# 遍历所有生成结果
for i, image in enumerate(data["data"]):
    print(f"图像 {i+1}: {image['url']}")

# 总花费: $0.032（15 张图），平均 $0.00213/张
print(f"\n总计生成 {len(data['data'])} 张图像，总花费 $0.032")

LoRA Style Generation (Flux Dev)

# 使用 Flux Dev LoRA 生成自定义风格图像
# 从 Civitai 或 HuggingFace 获取 LoRA 模型 ID
from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.atlascloud.ai/v1"
)

# 指定 LoRA 适配器生成特定风格
response = client.images.generate(
    model="flux-dev-lora",
    prompt="<lora:anime_style:0.8> A magical forest with glowing mushrooms, anime style, vibrant colors",
    n=1,
    size="1024x1024"
)

print(f"LoRA 风格图像: {response.data[0].url}")

8. FAQ

"What is the best AI image generator in 2026?"

It depends on your specific needs:

Best quality: Imagen4 Ultra (Google)
Best value: Flux Dev at $0.012/image via Atlas Cloud
Best all-round: Nano Banana 2 (4K, fast, Google Search, editing)
Best for text/posters: Seedream v5.0 (ByteDance)

"How does Nano Banana 2 compare to Flux?"

Aspect	Nano Banana 2	Flux Dev
Price	$0.072	$0.012 (6x cheaper)
Max Resolution	4K	~2K
Speed	Fastest	Fast
Google Search	Yes	No
LoRA Support	No	Yes (10,000+)
Open Weights	No	Yes
Edit Support	Yes (14 refs)	Via Kontext

Verdict: Choose Nano Banana 2 for quality + speed + brand awareness. Choose Flux Dev for budget + customization.

"How does Nano Banana 2 compare to Midjourney?"

Nano Banana 2 offers several advantages over Midjourney v6:

API access — programmatic generation (Midjourney is Discord-only for most users)
Google Search grounding — real brand/event awareness
4K output — higher resolution than Midjourney's default
Flat pricing — $0.072 for any resolution via Atlas Cloud
14 reference images — more than Midjourney's 4

"What is the cheapest AI image API?"

On Atlas Cloud:

Model	Price / Image
Seedream v5.0 Sequential	$0.002 effective (15 per request)
Flux Schnell	~$0.008
Flux Dev	$0.012
Wan 2.6 (self-hosted)	$0.000

"Which AI generates the best text in images?"

Seedream v5.0 Lite by ByteDance is the undisputed leader for text-in-image quality. It was specifically optimized for:

English and CJK (Chinese, Japanese, Korean) text rendering
Multi-line text and paragraph layouts
Poster and advertising design
Logo reproduction

"Which AI can generate NSFW images?"

Flux Dev on Atlas Cloud provides uncensored generation at $0.012/image — the cheapest uncensored option available. Wan 2.6 can also be self-hosted for unrestricted local generation.

"Can I use these models for commercial projects?"

Yes. All models on Atlas Cloud are available for commercial use. Flux Dev and Wan 2.6 additionally offer open weights for self-hosting. Always check individual model licenses for specific use cases.

"How do I get 90% off Nano Banana 2?"

Atlas Cloud offers up to 90% off official pricing through optimized infrastructure and volume discounts. Sign up and get a 25% bonus on your first top-up (up to $100 bonus).

9. Start Generating

Compare for Yourself — Try Every Model

46 image models, one API. Find your perfect match.


From $0.012/image (Flux Dev)	Up to 90% off official pricing
Uncensored options available	25% Bonus on first top-up (up to $100)
4K resolution support	15 images per batch request

Start Free on Atlas Cloud

No credit card required to explore. Pay only for what you generate.

10. Star History, Contributing & License

Star History

Contributing

We welcome contributions! Here's how you can help:

Add benchmark results — Run your own tests and submit comparison data
Update pricing — API prices change frequently; help us stay current
Add new models — New models launch regularly; submit a PR with specs
Fix inaccuracies — Found an error? Open an issue or PR
Translate — Help translate into more languages

# 克隆仓库
git clone https://github.com/your-org/ai-image-model-comparison.git

# 创建分支
git checkout -b feature/add-new-model

# 提交你的更改
git add .
git commit -m "Add new model benchmark data"

# 推送并创建 PR
git push origin feature/add-new-model

License

This project is licensed under the MIT License — see the LICENSE file for details.

MIT License

Copyright (c) 2026 AI Image Model Comparison Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Built with data, not hype.

Last updated: March 2026 — Prices and capabilities may change. Always verify on Atlas Cloud.

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AI Image Model Comparison 2026

Nano Banana 2 vs Flux vs Seedream v5.0 vs Imagen4 vs Wan 2.6

Table of Contents

1. Comparison Dimensions Overview

Models Under Review

2. Specifications Comparison

2.1 Model Type & Feature Support

2.2 Resolution & Output

2.3 Unique Strengths

3. Pricing Comparison

3.1 Atlas Cloud Pricing (Sorted by Price)

3.2 Atlas Cloud vs Official Pricing

Nano Banana 2 — Google Official vs Atlas Cloud

Seedream v5.0 Lite — 90% Off Official Pricing

Atlas Cloud vs fal.ai — Cross-Platform Price Comparison

3.3 Cost per 1,000 Images by Use Case

4. Quality Comparison

4.1 Photorealism

4.2 Text / Typography Rendering

4.3 Prompt Adherence

4.4 Style Versatility

4.5 Image Editing Quality

4.6 Consistency (with LoRA/References)

5. Scene-Based Evaluation

5.1 Product Photography

5.2 Social Media Content

5.3 Marketing & Advertising

5.4 Typography & Poster Design

5.5 Artistic & Creative

5.6 NSFW / Mature Content

6. Evaluation Conclusions

6.1 Overall Ranking

6.2 Decision Flowchart

7. Quick Start — Try Any Model

cURL

Python

JavaScript / Node.js

Batch Generation (Seedream v5.0 Sequential)

LoRA Style Generation (Flux Dev)

8. FAQ

"What is the best AI image generator in 2026?"

"How does Nano Banana 2 compare to Flux?"

"How does Nano Banana 2 compare to Midjourney?"

"What is the cheapest AI image API?"

"Which AI generates the best text in images?"

"Which AI can generate NSFW images?"

"Can I use these models for commercial projects?"

"How do I get 90% off Nano Banana 2?"

9. Start Generating

Compare for Yourself — Try Every Model

Start Free on Atlas Cloud

10. Star History, Contributing & License

Star History

Contributing

License

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