Free AI Image Generator Online
Turn a text prompt into a finished image in seconds. Pick a model, set the aspect ratio and resolution, and generate your first image free — no credit card, no API key, watermark-free exports.
示例提示词
复制提示词，粘贴到生成器中，再按需修改。
Product hero photo
Ecommerce & ads
A premium product hero photo of a matte ceramic coffee cup on warm carbon stone, banana-amber side light, soft shadow, negative space on the right for a headline, commercial product photography, 4K
Professional headshot
Profiles & teams
A professional headshot of a confident founder, warm studio lighting, neutral editorial background, natural skin texture, relaxed expression, shallow depth of field, square crop
Event poster
Print & promo
A bold event poster for an AI design meetup, high-contrast composition, banana-amber accent on warm carbon background, strong central focal point, clear space reserved for title and date typography
Social media post
Feeds & thumbnails
A high click-through 16:9 thumbnail for an AI image tutorial, expressive creator face, banana-amber accent lighting, bold simple background, clear area for short title text
Anime avatar
Avatars & mascots
An anime avatar of a cheerful AI artist wearing a banana-amber hoodie, clean line art, expressive eyes, soft cel shading, simple background, head-and-shoulders avatar crop
Interior design scene
Spaces & concepts
A cozy modern living room at golden hour, warm carbon and oak tones, banana-amber accent cushions, soft natural window light, wide editorial interior photography, realistic materials
示例图库
模型在常见使用场景下的部分输出示例。
Product photo
Studio product hero with negative space for copy
Headshot
Editorial portrait, neutral background, natural skin
Poster
High-contrast poster layout with title space
Anime avatar
Character avatar, cel shading, avatar crop
Interior scene
Warm interior, golden-hour window light
Food shot
Appetizing food styling, soft directional light
How it works
The generator is built around one fast loop: describe, configure, generate. You can refine and re-run as many times as your credits allow.
- Enter your prompt — describe the subject, style, lighting, and use
- Choose a model, aspect ratio, and resolution
- Generate, then remix, download, or share the result
Who it is for
The same generator serves very different jobs. These are the workflows people reach for most.
- Marketers and indie hackers shipping campaign and launch visuals
- Ecommerce sellers creating product and listing images
- Creators and designers exploring concepts and avatars
- Students and educators making slides, posters, and study visuals
Which model should you use
Every model is available in the same generator — switch between them without managing API keys. Start with one of the defaults, then test others for specific looks.
- Nano Banana 2: fast, dependable general text-to-image generation
- Nano Banana Pro: higher fidelity, strong text rendering, commercial-ready assets
- Flux 2, Imagen 4, Seedream 4.5, GPT Image 2: alternative looks for concept art, posters, and stylized work
常见问题
Is this AI image generator free?
Yes. You can generate your first images free with no credit card. Signed-in users can claim daily credits for ongoing generation, and paid plans or credit packs cover higher-volume work.
Do I need to sign up?
No. You can try the generator as a guest with a limited number of free generations. Create a free account when you want daily credits, saved history, and download-ready results.
Can I use the generated images commercially?
Generated images are intended for commercial workflows such as ads, product mockups, social posts, and client concepts. Review your plan terms before publishing at scale, and avoid recreating trademarked or copyrighted material.
Which model should I choose?
Start with Nano Banana 2 for fast general generation, or Nano Banana Pro when you need higher fidelity and clean text rendering. Flux 2, Imagen 4, Seedream 4.5, and GPT Image 2 are available for more stylized or experimental looks.
Can I generate images from text?
Yes. Text-to-image is the default mode — type a prompt, pick a model and aspect ratio, and generate. Clear prompts that name the subject, style, lighting, and intended use produce the strongest results.
Can I edit an existing image?
Models that support image input let you upload a reference image and transform it with a prompt. Models without image input are text-to-image only; the generator shows which mode each model supports.
Are downloads watermarked?
No. Exports are watermark-free so you can use them directly in your own projects.
How do daily credits work?
Signed-in users can claim a daily allotment of credits. Each generation spends credits based on resolution and the number of images. Come back the next day to claim again, or top up with a plan or credit pack for heavier use.
开始使用 Banananano AI 生成图像
使用每日免费额度测试模型、保存提示词片段，并建立可复用的创作工作流。