FLUX.2 is Black Forest Labs' image model: photoreal detail, accurate text rendering, and multi-reference editing that keeps characters, products, and styles consistent across up to 8 images. Two tiers — Pro for fast production, Flex for max quality — and you call FLUX.2 through reApi's unified API.
3–5000 characters · required
Public HTTPS URLs only (no base64) · 1–8 images · keeps characters and styles consistent
1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 · auto requires reference images · default 1:1
1K or 2K (up to 4MP) · 2K costs more
On in the playground; configurable via the API (API default: off).
Try one of these prompts
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
One sample at the cheapest tier (1 image).
FLUX.2 is Black Forest Labs' image model, exposed on reAPI as a single endpoint with two tiers: Pro for fast production work and Flex for maximum quality. Send a prompt alone for text-to-image, or attach up to 8 reference images to generate from them — across seven fixed aspect ratios plus auto, at 1K or 2K output. Every request is billed per image at the rate for the tier and resolution you choose.
Real-world workflows and production use cases you can build and ship with this model.
FLUX.2 renders photoreal scenes and the headline copy together — a sports campaign, a product hero, a launch poster — with the text spelled right and laid out where you asked. Write the scene and the line in your prompt, pick the aspect ratio, and FLUX.2 composes a finished, brand-ready creative in one generation.
Open the playground
From a grainy 1990s film snapshot to a clean studio shot, FLUX.2 nails the look — lens, lighting, grain, and color of the era you describe. It is convincing enough for stock-style imagery, period scenes, and lifestyle photography, so the output reads as a real photo rather than a render.
Attach up to eight reference images and FLUX.2 keeps the same character, product, or style across the result — swap a scene, combine elements, or restyle while staying on-model. Paired with its sharp in-image text, it is built for campaigns and catalogs where consistency and legible type both matter.
FLUX.2 pairs convincing photorealism with accurate in-image text — fine typography, infographics, UI layouts, and small fonts that stay sharp. It is the combination most image models miss, and it ships through the same request to /api/v1/images/generations.
Combine up to 8 reference images and FLUX.2 keeps characters, products, and styles consistent across the output. Text-to-image and image-to-image run on the same surface — attach input_urls to edit, omit them to generate.
Pick Pro for fast, stable, lower-cost production or Flex for maximum quality. 1 credit equals $0.001 USD and you pay per image by tier and resolution. Submit a FLUX.2 task, poll until complete; the JSON matches the OpenAI image-generations contract, so adding FLUX.2 is a model-id change.
Both generate and edit images from one API. FLUX.2 leans into photorealism, multi-reference consistency across up to 8 images, and sharp in-image text, with tiered Pro/Flex pricing. Here is how the two compare on publicly documented behavior.
Comparison reflects publicly documented behavior at the time of writing. Model behavior and pricing can change; check the pricing card above and the API docs for current values.
Sign up at reApi and grab an API key. Free signup credits cover plenty of FLUX.2 generations — start on the Pro tier before you top up.
OpenPOST to /api/v1/images/generations with model: flux-2 (or flux-2-flex), a prompt, and optional aspect_ratio / resolution / input_urls. FLUX.2 returns a task_id immediately — add input_urls to edit instead of generate.
OpenGET /api/v1/tasks/:id until status is completed. The FLUX.2 response carries the image URL; mirror it to your own storage if you need it long term, since generated links expire.
Opencurl -X POST https://reapi.ai/api/v1/images/generations \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux-2",
"prompt": "an infographic poster titled OPENING SOON, clean layout",
"aspect_ratio": "3:4",
"resolution": "2K"
}'Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.
401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.
Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.
A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.
Common questions about this model.
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Try it in the playground or grab an API key to integrate now.