Output resolution
Supports 1k from the published endpoint schema.
Highest-quality FLUX.2 generation with strong prompt following
curl -X POST https://runapi.ai/api/v1/flux_2/text_to_image \
-H "Authorization: Bearer $RUNAPI_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux-2-max-text-to-image",
"prompt": "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."
}'
import { Flux2Client } from "@runapi.ai/flux-2";
const client = new Flux2Client();
const result = await client.textToImage.run({
model: "flux-2-max-text-to-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail.",
});
import os
import requests
response = requests.post(
"https://runapi.ai/api/v1/flux_2/text_to_image",
headers={"Authorization": f"Bearer {os.environ['RUNAPI_API_KEY']}"},
json={"model":"flux-2-max-text-to-image","prompt":"Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."}
)
response.raise_for_status()
<?php
$client = curl_init("https://runapi.ai/api/v1/flux_2/text_to_image");
curl_setopt_array($client, [
CURLOPT_HTTPHEADER => ["Authorization: Bearer " . getenv("RUNAPI_API_KEY"), "Content-Type: application/json"],
CURLOPT_POSTFIELDS => json_encode([
'model' => 'flux-2-max-text-to-image',
'prompt' => 'Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail.',
])
]);
$response = curl_exec($client);
RunApi client = new RunApi(System.getenv("RUNAPI_API_KEY"));
Task task = client.textToImage().run({"model":"flux-2-max-text-to-image","prompt":"Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."});
task.waitForResult();
require "runapi/flux_2"
client = RunApi::Flux2::Client.new
result = client.text_to_image.run(
model: "flux-2-max-text-to-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."
)
client := runapi.NewClient(os.Getenv("RUNAPI_API_KEY"))
task, err := client.textToImage.Run({"model":"flux-2-max-text-to-image","prompt":"Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."})
if err != nil { log.Fatal(err) }
task.Wait()
$ runapi generate \
--model flux-2-max-text-to-image \
--endpoint text_to_image \
--wait
6 versions available
Pick any model and generate in seconds.
Pick any model and generate in seconds.
| Provider | Black Forest Labs |
| Model ID | flux-2-max-text-to-image |
| Modality | Image |
| Task types | Asynchronous |
| API endpoint | /api/v1/flux_2/text_to_image |
| Billing unit | call |
| Input parameters | aspect_ratio, callback_url, model, output_count, output_resolution, prompt |
| Max resolution | 1k |
| Aspect ratios | 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 |
| Catalog status | Operational |
Sign up for free and create an API key for flux-2-max-text-to-image from the dashboard.
POST to /api/v1/flux_2/text_to_image with the flux-2-max-text-to-image model slug and your parameters.
Poll the task or follow the callback to retrieve the completed flux-2-max-text-to-image result.
Supports 1k from the published endpoint schema.
Configure 4 documented parameters, including aspect_ratio, output_count, output_resolution, prompt.
Exposes 1 public endpoint(s): text_to_image.
Asynchronous tasks accept a callback URL for completion notifications.
promptImage description.
aspect_ratioOutput aspect ratio. (1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3)
callback_urlWebhook URL for async notifications.
output_countNumber of images to generate. (1)
output_resolutionOutput resolution. (1k)
Auto-generate lifestyle product photos for e-commerce catalogs that lack studio photography.
Rapidly concept environments and characters before committing to final art.
Generate unique cover art and illustrations for blog posts and articles at scale.
Pass the model ID shown in the quickstart.
Per-key rate limits scale with your usage tier. The pricing page shows current limits. If you need higher throughput, contact support to discuss tier upgrades.
Yes. Variant is a parameter in the request. Switch by changing the model ID — no code changes, no re-authentication, no separate billing setup. All variants share the same API key and request shape.
Where streaming is available, RunAPI streams end-to-end. LLM models support token-level streaming. Media models use async task polling or webhook callbacks for result delivery.
Open an issue on the public GitHub repo or email support at [email protected]. Include the task ID and model ID so the team can investigate the specific generation.
No. Your RunAPI API key is enough to access this variant and every other model in the catalog. You do not need accounts with the underlying provider.
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