Flux 3 API
What is Flux 3
Flux 3 is a text-to-video generation model provided by Fal. It converts text prompts into video output.
Flux 3 via varg vs. calling Fal directly
| Feature | Calling Fal directly | Via varg |
|---|---|---|
| Separate account/key needed | Yes | No |
| Combinable with other models in one pipeline | No | Yes |
| Automatic caching | No | Yes |
Using varg allows you to integrate Flux 3 alongside models from other providers in a single pipeline, with built-in caching and unified billing.
Pricing
Flux 3 costs $6.09 per second (conditional pricing) via varg.
Code example
curl -X POST https://api.varg.ai/v2/video \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux_3",
"prompt": "slow push-in on a ceramic coffee mug on a wooden table, soft morning light"
}'
flux_3 is the model id in varg's live catalog. To see every input this model accepts, call GET https://api.varg.ai/v2/tools/video?model=flux_3; see docs.varg.ai for the response shape.
When to use Flux 3 vs. other video models
Flux 3 is a text-to-video model. When selecting a video generation model, consider the specific requirements of your project, including cost structure, output quality needs, and integration complexity. Without specific sibling model data for direct comparison, evaluate based on whether the $6.09 per second conditional pricing aligns with your budget and the Fal provider integration meets your technical requirements.
FAQ
How much does Flux 3 cost via varg?
Flux 3 costs $6.09 per second of output via varg, using conditional pricing.
Do I need a separate Fal account to use Flux 3?
No. When using Flux 3 through varg, you do not need a separate Fal account or API key. varg handles the provider integration and authentication.
What is the model key for Flux 3?
The model key for Flux 3 is fal:blackforestlabs/flux-3/text-to-video.