# Banana AI > Chat-based AI image generator with 4K output and accurate text rendering. No prompt engineering needed — describe what you want, refine through conversation, and download production-ready images. Four models in one chat: Nano Banana (fast drafts), Nano Banana 2 (pro-quality at flash speed), Nano Banana Pro (4K with text), and Flux Fast (ultra-low-cost). Banana AI is a conversational AI image generation platform at [bananai.net](https://bananai.net). Designed for e-commerce sellers, content creators, marketers, and educators. Users describe their needs in plain language and iterate through multi-turn chat. The AI remembers context, supports reference image uploads, and outputs in up to 4K resolution with readable text — all included for commercial use. Key differentiators: - **Chat-native interface**: Multi-turn conversation with full session history, no single-turn prompt limits - **4K resolution**: Nano Banana Pro outputs at 3840x2160, sharp enough for large-format printing - **Accurate text rendering**: Logos, headlines, multilingual labels render clean in generated images - **Four models in one chat**: Switch between speed, quality, and cost per task without leaving the session - **Reference image editing**: Upload existing photos and modify through conversation - **Credit-based pricing**: Pay per image, not flat subscription — start free with 10 credits, no card required ## Core Features - [Chat-to-Generate](https://bananai.net/#chat): Conversational image generation with multi-turn refinement and reference image support - [Model Selection](https://bananai.net/#chat): Four AI models — Nano Banana (5 credits, 2-5s, 1K), Nano Banana 2 (7-14 credits, 4-6s, up to 4K), Nano Banana Pro (10-20 credits, up to 4K, text rendering), Flux Fast (1 credit, ultra-fast) - [Aspect Ratio Presets](https://bananai.net/#chat): 7 optimized ratios — 1:1, 4:5, 9:16, 16:9, 3:4, 4:3, 2:3 - [Character Consistency](https://bananai.net/#chat): Keep faces and styles consistent across scenes for brand mascots and recurring characters - [Text Rendering](https://bananai.net/#chat): Nano Banana Pro renders accurate text in images — logos, headlines, multilingual labels - [Reference Image Editing](https://bananai.net/#chat): Upload up to 8 reference images (Pro model) and modify through conversation ## Pricing - [Pricing Plans](https://bananai.net/pricing): Free (10 credits), Pro ($9.9/mo, 500 credits), Premium ($29.9/mo, 3000 credits). Credit-based: Nano Banana 5cr, Nano Banana 2 7-14cr, Nano Banana Pro 10-20cr, Flux Fast 1cr. Yearly plans offer 2 months free. ## Use Cases - [E-Commerce Product Photography](https://bananai.net/#waterFeatures): White-background and lifestyle product shots at ~$0.20/image vs $30-50 photographer session - [Content Creator Thumbnails](https://bananai.net/#waterFeatures): YouTube thumbnails, TikTok covers with sharp text — 5-minute iteration vs 2-hour Photoshop - [Social Media Marketing](https://bananai.net/#waterFeatures): Multi-ratio variants from single prompt for Instagram, Reels, Twitter - [Educational Illustrations](https://bananai.net/#waterFeatures): Diagrams, maps, annotated illustrations with accurate labels in multiple languages ## Prompt Library - [Ready-Made Prompts](https://bananai.net/#prompt-library): Pre-built prompts for product photos, thumbnails, brand visuals, and diagrams — one click to generate ## FAQ - [Frequently Asked Questions](https://bananai.net/#faq): How chat-based generation works, model differences, pricing, commercial use, reference image support, resolution options ## Optional - [Nano Banana 2 Features Review](https://bananai.net/blog/nano-banana-2-features-review): In-depth review of Nano Banana 2 capabilities — 4K output, flash speed, and Chinese text rendering - [Nano Banana 2 vs Pro Comparison](https://bananai.net/blog/nano-banana-2-vs-pro-comparison): Side-by-side comparison of Nano Banana 2 and Nano Banana Pro — speed, quality, cost trade-offs - [Nano Banana 2 Pricing & Cost Guide](https://bananai.net/blog/nano-banana-2-pricing-cost-guide): Complete pricing breakdown with per-image costs and plan recommendations - [Nano Banana 2 Quality Benchmark](https://bananai.net/blog/nano-banana-2-quality-benchmark): Image quality benchmarks across product photos, text rendering, and creative styles - [Blog](https://bananai.net/blog): Guides, tutorials, and comparisons for AI image generation - [Privacy Policy](https://bananai.net/privacy): Data handling and privacy practices - [Terms of Service](https://bananai.net/terms): Usage terms and conditions