Black Forest Labs: FLUX 3
black-forest-labs/flux-3
Access FLUX 3 from Black Forest Labs using the Puter.js AI API for free.
Get Started
Model Card
FLUX 3 is Black Forest Labs' multimodal foundation model, a change from the company's previous FLUX.1 and FLUX.2 releases, which were image-only. It is trained jointly on images, video, and audio using an architecture BFL calls Self-Flow, and is the company's first model to generate video and audio from the same set of weights.
The video capability supports text-to-video, image-to-video, video-to-video editing, video continuation, and keyframe-based transitions, producing clips up to 20 seconds long in HD (1 megapixel per frame) or Full HD (2 megapixels per frame). It generates optional native audio alongside the video, including multilingual dialogue, sound effects, and ambient noise.
Black Forest Labs reports FLUX 3 Video ranks highest in Elo ratings for text-to-video and image-to-video among models it compared, including Gemini Omni Flash, Minimax H3, and Seedance 2.0. FLUX 3 Video became generally available on August 5, 2026.
Max Duration N/A
seconds
Frame Rate N/A
fps
Aspect Ratio N/A
supported
Release Date Aug 5, 2026
Code Example
Use FLUX 3 in your app with the Puter.js AI API — no API keys or setup required.
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.txt2vid("A cat playing with a ball of yarn", {
model: "black-forest-labs/flux-3"
}).then(video => {
document.body.appendChild(video);
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.txt2vid("A cat playing with a ball of yarn", {
model: "black-forest-labs/flux-3"
}).then(video => {
document.body.appendChild(video);
});
</script>
</body>
</html>
More AI Models From Black Forest Labs
Find other Black Forest Labs models →
FLUX.2 [klein] 4B
FLUX.2 Klein 4B is a compact, Apache 2.0 licensed model distilled from the full FLUX.2 architecture, capable of sub-second image generation on consumer GPUs with ~13GB VRAM. It supports text-to-image, image editing, and multi-reference generation in a unified model.
ImageFLUX.2 [klein] 9B
FLUX.2 Klein 9B is a larger variant of the Klein family built on a 9B flow model with an 8B Qwen3 text embedder, matching or exceeding models 5x its size in quality. It offers higher output diversity than the 4B distilled variant and is ideal for fine-tuning and research.
ImageFLUX.1 Kontext [max]
FLUX.1 Kontext Max is the highest-quality model in the Kontext series, optimized for iteratively modifying existing images via text prompts with maximum fidelity. It offers the best editing consistency and prompt following among Kontext variants.
Frequently Asked Questions
You can access FLUX 3 by Black Forest Labs through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required.
Integrating FLUX 3 through the Puter.js AI API is free under the User-Pays Model. Each user pays for their own AI usage through their Puter account.
FLUX 3 was created by Black Forest Labs and released on Aug 5, 2026.
Yes — the FLUX 3 API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add FLUX 3 to your app for free
Developers can integrate FLUX 3 for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.