README
Upcoming Flux 3 API — One Multimodal Model Built for Creative Intelligence
Explore the upcoming Flux 3 API on Kie.ai and experience a unified multimodal foundation designed for next-generation AI creation.
FLUX 3 Brings Image, Video, Audio, and Action Prediction Into One Multimodal Model
FLUX 3 marks Black Forest Labs’ most ambitious expansion beyond standalone image generation, bringing image, video, audio, language, and action prediction into one shared multimodal architecture. It builds on Self-Flow, BFL’s approach for aligning multimodal generation and understanding within the same underlying system. By substantially scaling the compute and data used to train images, video, and audio together, FLUX 3 can learn how scenes are structured, how objects move, how physical events produce sound, and how actions reshape the world over time.FLUX 3 is currently moving through a phased early access rollout, with its video, image, action, and open-weight capabilities scheduled to become available at different stages. Public pricing, official model IDs, production limits, and complete technical documentation have not yet been announced. Once the relevant capabilities are formally released, Kie.ai will update the corresponding Flux 3 API options according to their actual availability and supported access conditions.
Flux 3 Video
Flux 3 Video combines visual generation and native audio within the same system, supporting text-to-video, image-to-video, video-to-video, keyframe-controlled transitions, and video-audio continuation. Announced capabilities include single generations of up to 20 seconds, multilingual dialogue, visual references, animated typography, varied aspect ratios, and agentic chaining that connects individual clips into longer multi-shot sequences. Early access is already underway, while final resolutions, controls, and production specifications may continue to change before wider release.
Flux 3 Image
Flux 3 Image is designed for image synthesis and editing across diverse styles, compositions, aspect ratios, and resolutions. Preliminary results highlight stronger complex prompt handling, more accurate multilingual text rendering, broader stylistic diversity, and improved editing performance over earlier FLUX generations. Black Forest Labs plans to open a separate early access phase for image capabilities in the coming weeks, with additional technical details expected closer to release.
Flux 3 Action
Flux 3 Action applies the same multimodal foundation to action prediction and physical AI. By learning from motion, object interaction, environmental change, and visual consequences, it can provide a dynamics-aware foundation for robotic manipulation and other real-world tasks. Initial development includes FLUX-mimic, created with mimic robotics for dexterous manipulation and production environments, while access currently remains limited to selected research and commercial partners.
What Makes the Upcoming Flux 3 API a Major Multimodal Leap
Built around a single foundation for image, video, audio, language, and action prediction, FLUX 3 is designed to connect creative generation with a deeper understanding of motion, sound, and physical change. The features below reflect the capabilities announced for the Flux 3 API family and may be refined as each product moves toward wider release.
One Shared Multimodal Foundation for Flux 3 API
At the core of Flux 3 API is an architecture that learns from images, video, audio, language, and action-related data together. Connections between these signals help FLUX 3 understand not only how a scene appears, but also how it develops over time, which sounds belong to particular events, and how objects may respond to movement or interaction.
Generate Video and Native Audio Together with Flux3 API
Rather than producing silent footage through one system and adding sound through another, Flux3 API is designed to create visuals and audio as part of the same generation process. Support for clips of up to 20 seconds can bring dialogue, ambient sound, impacts, and other acoustic details into closer alignment with the timing and movement shown on screen.
Guide Creation Through Multiple Inputs in Flux AI API
Beyond text prompts, Flux AI API can use images, keyframes, reference clips, and existing video-audio content to shape the output. A starting image may establish the opening frame, reference media can preserve important visual elements, and defined keyframes can provide greater control over transitions, movement, and scene progression.
Build Longer and More Consistent Stories with BFL Flux 3 API
For projects that require more than one isolated clip, BFL Flux 3 API is designed to chain separate generations into extended multi-shot sequences. Character references, recurring objects, visual environments, and stylistic details can carry across scenes, creating a stronger foundation for structured narratives and longer-form visual content.
Create Multilingual Dialogue and Visual Text with Flux 3 API
Language and graphics can become active parts of the generated scene through Flux 3 API. Multilingual dialogue supports content intended for different audiences, while improved typography can place readable signs, titles, labels, and animated text within images and videos without separating them from the surrounding visual composition.
Bring Physical Dynamics Into Creation Through Flux AI API
Physical understanding gives Flux AI API a broader purpose than surface-level media generation. Learning from movement, sound, object interaction, and environmental change can support more coherent physical behavior in generated content while also providing a foundation for simulation, action prediction, computer interaction, and robotic manipulation.
Where FLUX 3 Stands Against Today’s Leading Video Models
The comparison data below comes from Black Forest Labs’ official FLUX 3 announcement. BFL evaluated 10-second, 720p text-to-video clips with native audio and reported how often viewers preferred FLUX 3 over each competing model in direct head-to-head comparisons. These figures reflect a preliminary internal evaluation of a development-stage candidate rather than an independently reproduced benchmark. Sample size, evaluator count, complete prompts, and detailed scoring methodology have not yet been published, so the results should be treated as an early indication of performance rather than final benchmark data.
| Competing Model | FLUX 3 Preference Rate | Strength of Result | What the Comparison Shows |
|---|---|---|---|
| Luma Ray 3.2 | 93% | Largest reported lead | FLUX 3 received an overwhelming share of viewer preferences in this comparison |
| Runway Gen-4.5 | 77% | Strong advantage | More than three-quarters of the evaluated comparisons favored FLUX 3 |
| Grok Imagine Video | 69% | Clear advantage | FLUX 3 maintained a substantial preference lead in the tested setting |
| Kling v3 Pro | 60% | Meaningful advantage | The result favored FLUX 3, although the difference was less pronounced |
| Happy Horse v1 | 59% | Moderate advantage | Viewer preference leaned toward FLUX 3 in a relatively competitive matchup |
| Happy Horse 1.1 | 57% | Narrow advantage | FLUX 3 held a smaller but still positive preference margin |
| Seedance 2.0 | 52% | Closely matched | Viewer preferences were almost evenly divided between the two models |
| Gemini Omni Flash | 52% | Closely matched | FLUX 3 and Gemini Omni Flash produced nearly equal preference results |
How to Prepare for and Use Flux 3 API on Kie.ai
Get started with our product in just a few simple steps...
1. Create a Kie.ai Account Before Flux 3 API Launch
2. Generate a Kie.ai API Key and Prepare Your Integration
3. Select Flux 3 API After It Becomes Available
4. Configure and Submit Your Flux AI API Request
5. Track the BFL Flux 3 API Task and Retrieve the Result
Where the Upcoming Flux 3 API Could Create the Most Value
Produce Complete Video Campaigns with Flux 3 API
Marketing teams could use Flux 3 API to create video concepts, character-driven advertisements, product stories, and branded social content with visuals, dialogue, sound effects, and music generated together. Support for multiple styles, aspect ratios, multilingual speech, and animated typography could make it easier to adapt one creative direction across different markets and channels.
Build Longer Visual Stories Through Flux3 API
Film, animation, and entertainment workflows could benefit from connecting individual clips into structured multi-shot sequences. Flux3 API is designed to carry characters, locations, visual references, and stylistic details across scenes, helping creators move from isolated shots toward trailers, short films, music videos, and episodic content with stronger continuity.
Create and Refine Product Visuals with Flux AI API
E-commerce brands and design teams could apply Flux AI API to product photography, packaging concepts, campaign imagery, material variations, and controlled visual edits. A shared image and video foundation may also help preserve product shape, color, texture, and branding when static assets are extended into motion.
Localize Multimedia Content with BFL Flux 3 API
Global content production often requires more than translating subtitles. BFL Flux 3 API could support localized dialogue, readable multilingual text, adapted signs, animated titles, and culturally relevant visual variations while maintaining the main composition and creative identity of the original content.
Develop Interactive Simulations and Physical AI with Flux 3 API
Beyond creative media, Flux 3 API could provide a foundation for systems that need to understand movement, object interaction, environmental change, and the likely result of an action. Potential applications include robotic manipulation, synthetic training data, industrial simulation, embodied agents, and computer interaction, although action-related access is expected to remain more limited than image or video generation.
Why Choose Kie.ai While Waiting for Flux 3 API
Follow Verified Flux 3 API Availability Updates
Kie.ai will track the phased release of FLUX 3 Video, FLUX 3 Image, and other publicly accessible capabilities instead of presenting early access announcements as completed launches. Availability information will be revised as Black Forest Labs confirms public APIs, model identifiers, technical limits, and supported access conditions.
Prepare Your Integration Before Flux3 API Launch
Developers can create a Kie.ai account, generate an API key, and prepare authentication, asynchronous task handling, callbacks, and media storage before Flux3 API endpoints become available. Completing this basic setup early can reduce the amount of integration work required once confirmed access is introduced.
Explore Other Advanced Models While Flux 3 API Is Coming Soon
There is no need to pause product development while waiting for Flux 3 API. Kie.ai already provides access to a broader range of image, video, audio, and language models, allowing teams to test current workflows, compare generation approaches, and select temporary alternatives for active projects.
Review Clear Flux 3 API Pricing After Release
Once official costs and billing rules are available, Kie.ai will publish the corresponding Flux 3 API pricing based on the supported generation options. Clear usage information will help developers estimate costs for different workloads without relying on speculative prices or unconfirmed third-party figures.
Build from Updated BFL Flux 3 API Documentation
Documentation for BFL Flux 3 API will reflect the endpoints and parameters that are genuinely supported on Kie.ai. Model identifiers, accepted inputs, generation settings, response formats, callback procedures, and known restrictions will be revised as additional FLUX 3 capabilities move through their release stages.
Get Technical Support for Flux 3 API Integration
After Flux 3 API access is introduced, Kie.ai support can assist with authentication, request configuration, task status handling, failed generations, billing questions, and other integration issues. Guidance will remain aligned with the latest supported functionality rather than capabilities that have only been announced or demonstrated.
While FLUX 3 Is Coming, Keep Building with Kie.ai
FLUX 3 is still on the way, but there is no need to put your creative or development plans on hold. Kie.ai already provides access to advanced models such as Seedance 2.0, Gemini Omni Flash, Kling, Hailuo, PixVerse, Veo, and the wider FLUX family, covering video, image, audio, and multimodal generation. Explore the Model Market to compare what is available now, continue building with the right model for your project, and return for updated FLUX 3 access details as the rollout progresses.
