# Hermoso: FLUX.3 [klein] on Hermoso: 10 ratios, up to 14 refs > Machine-readable twin of https://hermoso.ai/models/flux-3-klein/. Generated from the shipped page. Do not edit by hand. > Full agent guide: https://hermoso.ai/llms.txt · MCP: https://app.hermoso.ai/mcp [Models](https://hermoso.ai/models/) › [Image models](https://hermoso.ai/models/image/) # FLUX.3 [klein] Fast, very cheap drafts with accurate on-image text Black Forest Labs · image model **10** aspect ratios **up to 14** reference images **Standard** output resolution **Prompt in** text to image FLUX.3 [klein] is one of 43 image models Hermoso can render a still ad, product shot or thumbnail with. Name it, or leave the model out and the router picks a sound default. The same catalog is available from the app, the [MCP server](https://hermoso.ai/mcp/) and the CLI, on one account and one credit balance; the exact price of every render is shown in the app before it runs. ## What people make with it - [Static ads and carousels](https://hermoso.ai/recipes/social-ad/) - [Product photography on any set](https://hermoso.ai/recipes/studio-product/) - [YouTube and Shorts thumbnails](https://hermoso.ai/recipes/yt-thumbnail/) - Storyboard frames that seed a video The linked formats are [creative recipes](https://hermoso.ai/recipes/) Hermoso plans and renders for your brand. ## About Black Forest Labs Black Forest Labs is the team behind FLUX, known for photoreal stills and clean product renders. ## Specs Aspect ratios 1:1 9:16 16:9 3:4 4:3 2:3 3:2 4:5 5:4 21:9 Reference images up to 14 (composite) High resolution No Model id `flux-3-klein` ## Where it fits Each aspect ratio FLUX.3 [klein] renders maps to a placement: - **1:1** for Feed posts and carousels - **9:16** for Reels, TikTok, Shorts and Stories - **16:9** for YouTube, in-stream and display - **3:4** for Pinterest and tablet feed - **4:3** for Presentations and display - **2:3** for Pinterest pins - **3:2** for Photography and web hero - **4:5** for Instagram and Facebook feed - **5:4** for Print and gallery crops - **21:9** for Cinematic banners and hero films ## FLUX.3 [klein] compared with other image models Model Ratios Refs Hi-res **FLUX.3 [klein]** 10 up to 14 No [FLUX.2 [klein]](https://hermoso.ai/models/flux-2-klein/) 10 up to 14 No [FLUX1.1 Ultra](https://hermoso.ai/models/flux1-1-ultra/) 9 up to 14 No [FLUX 3](https://hermoso.ai/models/flux-3/) 10 up to 14 Yes [Qwen Image 3](https://hermoso.ai/models/qwen-image-3/) 10 up to 14 Yes [Grok Imagine 2.0](https://hermoso.ai/models/grok-imagine-2-0/) 13 up to 14 Yes [Seedream 5.0 Lite](https://hermoso.ai/models/seedream-5-0-lite/) 10 up to 14 Yes See [all 43 image models](https://hermoso.ai/models/image/) side by side. ## Just ask for it In Claude, ChatGPT, Cursor or any assistant connected to Hermoso, name the model in plain English. Or pick it from the model menu in the app. Make a 4:5 product shot of our olive oil on marble with FLUX.3 [klein]. Use FLUX.3 [klein] for three static ads with the headline "Pressed this week" and schedule them. Put our bottle on a beach with FLUX.3 [klein], keep the label exact. ## Getting the best out of FLUX.3 [klein] - Put any on-image text in quotes and say where it sits. Keep it under six words. - Attach the packshot and ask for it unchanged; describe the scene around it, not the product. - State the placement's ratio (4:5 for feed, 9:16 for Stories) so nothing gets cropped later. - Name the light and the surface (morning light, marble) instead of adjectives like premium. Make an image ad with FLUX.3 [klein]. Start free, and every feature is on every plan. [Start free →](https://app.hermoso.ai/?src=model-flux-3-klein#models/m/image:flux-3-klein) [See pricing](https://hermoso.ai/pricing) ## Frequently asked questions ### What sizes can FLUX.3 [klein] make? 10 aspect ratios: 1:1, 9:16, 16:9, 3:4, 4:3, 2:3, 3:2, 4:5, 5:4, 21:9. Pick the one the placement needs: 4:5 for feed, 9:16 for Stories and Reels. ### Can FLUX.3 [klein] use my product photos? Yes. Attach up to 14 reference images and the real product is composited into the scene. ### How much does FLUX.3 [klein] cost? The exact credit price is shown in the app before every render and settled at cost. See pricing for what a credit is worth. ## Related image models Other Black Forest Labs models first, then the image models listed nearest to FLUX.3 [klein] in the catalog. [FLUX.2 [klein] retiring Older FLUX klein. FLUX.3 [klein] spells text better at the same price 10 ratios](https://hermoso.ai/models/flux-2-klein/)[FLUX1.1 Ultra FLUX 1.1 Ultra: high-resolution realism 9 ratios](https://hermoso.ai/models/flux1-1-ultra/)[FLUX 3 Black Forest Labs’ newest: photoreal detail and clean in-image text 10 ratios](https://hermoso.ai/models/flux-3/)[Qwen Image 3 Alibaba’s newest: complex text, follows prompts precisely, up to 2K 10 ratios](https://hermoso.ai/models/qwen-image-3/)[Grok Imagine 2.0 Grok Imagine 2.0: a striking look, sharper than 1.5 13 ratios](https://hermoso.ai/models/grok-imagine-2-0/)[Seedream 5.0 Lite Seedream 5 at a larger size than Flash 10 ratios](https://hermoso.ai/models/seedream-5-0-lite/)[M MAI Image 2.5 Pro Microsoft’s image model: precise typography and design-ready detail 7 ratios](https://hermoso.ai/models/mai-image-2-5-pro/)[Seedream 5.0 Flash Fast, low-cost Seedream for lots of variations 10 ratios](https://hermoso.ai/models/seedream-5-0-flash/) See [all 43 image models](https://hermoso.ai/models/image/) or [every model Hermoso offers](https://hermoso.ai/models/).