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FLUX.2 Flex API — pricing, code sample and mobile money payments

Bblack-forest-labs/flux-2-flex

FLUX.2 Flex — 130 credits, for text and layout

Max resolution
1024x1024
per image
130 cr
Rate limit
20 RPM
Ideal forPosters and flyersPackaging artworkBook and album coversInfographicsBranded layouts with copy

Input

Output

0 chars

Demo

Sample output — click Run to generate your own.

import Tchavi from '@tchavi/sdk';

const client = new Tchavi({ apiKey: 'API_KEY' });

const result = await client.images.generations.create({
  "model": "flux-2-flex",
  "prompt": "A cute cat wearing a space suit",
  "n": 1,
  "quality": "standard",
  "size": "1024x1024"
});

console.log(result.data[0].b64_json);
console.log('Credits used:', result.tchavi.credits_used);

API parameters

Every parameter this model accepts on the API. Check the SDK for full typings.

modelRequired
string

ID of the image model (e.g. `flux-2-flex`).

promptRequired
string

Text description of the image to generate.

n
integer
Default: 1

Number of images to generate (1–4).

per image
130 credits
Per day
Per week
Per month

Estimated over 30 days, ~1000 tokens per request (input + output).

💡 A 10 000 F CFA top-up gives you about ~230 images. Pay with Orange Money, MTN MoMo or M-Pesa — no Visa card needed.

FLUX.2 Flex

FLUX.2 Flex is the FLUX variant to use when the image contains words — posters, packaging, covers — where letterforms have to survive. Twice the price of FLUX.2 Pro, so use Pro when there is no text.

What this model does

Posters and flyersPackaging artworkBook and album coversInfographicsBranded layouts with copy

What this model does well

  • Readable text — Renders complex typography inside the image
  • Fine detail — Holds small structures other models smear
  • Multi-reference editing — Edit against several reference images at once
  • Layout control — Reliable placement for posters and covers

Technical specifications

Author
black-forest-labs
API identifier
flux-2-flex
Category
Image
Max resolution
1024x1024
Rate limit
20 RPM
Billing unit
image

Ready to use FLUX.2 Flex?

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+150 bonus on your first top-up · No card to sign up