FLUX 2 Pro API (flux-2-pro)

from $0.024 per image (1MP $0.024 · 2MP $0.036 · 3MP $0.048) — un seul endpoint compatible OpenAI sur https://api.apimart.ai/v1, sans abonnement mensuel. (relevé le 2026-10-12)

Obtenir une clé API · Tarifs en direct · Page du modèle · ⚡ Démarrage en 60 secondes

Pourquoi les équipes passent par APIMart pour FLUX 2 Pro (flux-2-pro)

• Une clé, tout le catalogue. La même base URL https://api.apimart.ai/v1 et le même en-tête Authorization donnent accès à FLUX 2 Pro (flux-2-pro) et à plus de 300 autres modèles d'image, de vidéo et de langage — changez le champ model, pas votre client.
• $1 minimum, paiement à l'usage. Ni abonnement ni forfait prépayé à dimensionner à l'avance : rechargez à partir de $1 et consommez-le en appels.
• Le montant revient dans la réponse. Chaque tâche terminée indique le montant facturé (cost / credits_cost) ; une tâche marquée failed est remboursée.
• Asynchrone par conception. Soumettez, récupérez le task_id, interrogez GET /v1/tasks/{id} — le traitement par lots et les retries relèvent d'une file d'attente ordinaire, pas d'une intégration sur mesure.

FLUX 2 Pro by Black Forest Labs generates images from text or references, priced per megapixel by output size.

Model id and routes

Route	model value	Billing	Notes
Per-image	flux-2-pro	per delivered image, by resolution	see the model page for the exact tiers

Endpoint: POST https://api.apimart.ai/v1/images/generations, then poll GET /v1/tasks/{task_id}.

Pricing

Output	List price	Effective price
1MP	0.03	0.024
2MP	0.045	0.036
3MP	0.06	0.048
4MP	0.075	0.06

Prices are a snapshot; the pricing page and data/model.json are refreshed by CI, and a completed task reports the exact amount in its cost field.

Request parameters

Field	Type	Default	Notes
model	string	required	the model id shown in the route table above
prompt	string	required	what to generate, or what to change when editing
size	string	auto / 1:1	aspect ratio, or auto where the route supports it
resolution	string	1K	output resolution tier — cost scales with it
n	integer	1	number of images per task, where the route allows more than one
image_urls	string[]	—	reference images as public HTTP(S) URLs or base64 data URLs
nsfw_check	boolean	false	runs omni-moderation-latest before submitting

The table lists the fields accepted by the APIMart images/generations endpoint. Check the model page for anything this model adds on top.

Quickstart

curl --request POST --url https://api.apimart.ai/v1/images/generations \
  --header "Authorization: Bearer $APIMART_API_KEY" --header 'Content-Type: application/json' \
  -d '{"model":"flux-2-pro","prompt":"A bamboo forest at sunrise, slow push-in","size":"1:1","resolution":"1K"}'

import os, time, requests

BASE = "https://api.apimart.ai/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['APIMART_API_KEY']}", "Content-Type": "application/json"}

created = requests.post(f"{BASE}/images/generations", headers=HEADERS, timeout=60, json={
    "model": "flux-2-pro", "prompt": "A bamboo forest at sunrise, slow push-in",
}).json()
task_id = created["data"]["id"]

while True:
    task = requests.get(f"{BASE}/tasks/{task_id}", headers=HEADERS, timeout=60).json()["data"]
    if task["status"] in ("completed", "failed"):
        break
    time.sleep(5)
print(task.get("cost"), task["result"]["images"][0]["url"])

Runnable versions: examples/. The task lifecycle is pending → processing → completed | failed.

FAQ

Quel est l'id du modèle FLUX 2 Pro ?

flux-2-pro. Voir le tableau des routes ci-dessus.

Comment la facturation fonctionne-t-elle ?

from $0.024 per image (1MP $0.024 · 2MP $0.036 · 3MP $0.048). La tâche terminée indique le montant exact dans son champ cost ; une tâche échouée est remboursée.

How do I get a key?

Use the Get an API key link — $1 minimum top-up, no plan required.

Related repositories

• Same model, this language — the other half of this pair: flux2-prompts-fr
• Same model, other languages — 9 more language builds: 中文 flux2-api-cn · Deutsch flux2-api-de · Español flux2-api-es · Relay/gateway flux2-api-gateway · Bahasa flux2-api-id · 日本語 flux2-api-ja · 한국어 flux2-api-ko · Português flux2-api-pt · Русский flux2-api-ru
• More models in this language — midjourney-api-fr · gemini-2-5-flash-image-preview-api-fr · nano-banana-api-fr · gemini-3-1-flash-image-preview-api-fr · nano-banana-2-api-fr · gemini-3-pro-image-preview-api-fr
• Topic hubs — every build of this model, all languages: flux2 · flux2-api

This repository is one build in a cross-linked set of API guides for the same model family; each language build links back to the others.

Attributed links (how this repository is measured)

Purpose	Attributed link	Target
Model page	https://go.apimart.ai/k-453c7f	apimart.ai/fr/model/flux-2
Live pricing	https://go.apimart.ai/k-c552a8	apimart.ai/fr/pricing
Get an API key	https://go.apimart.ai/k-df210d	apimart.ai/fr/keys

Outbound APIMart links are minted through the promo link API; hand-made tracking parameters are rejected by tools/check_links.py in CI.

Disclosure

FLUX 2 Pro is a third-party model served through APIMart; this repository documents how to call it and publishes model ids and prices, and does not claim official status. Model names, prices and documentation belong to their respective owners.

License

MIT — see LICENSE.