Model requirements
FLUX.1-dev GPU Requirements
FLUX.1-dev usually starts around 10-12 GB in INT4, 14-16 GB in INT8, and 22-24 GB in FP16. A safe production starting point is RTX 4090 24GB or L40S-class route.
Approximate starting range before runtime headroom.
Useful for accuracy-first deployments.
A strong default when you want one safe answer fast.
Direct answer
The fast answer for FLUX.1-dev
FLUX.1-dev usually starts around 10-12 GB in INT4, 14-16 GB in INT8, and 22-24 GB in FP16. A safe production starting point is RTX 4090 24GB or L40S-class route.
FLUX.1-dev fits most cleanly when you start from VRAM, not brand names.
FLUX.1-dev usually needs about 10-12 GB in INT4, 14-16 GB in INT8, and 22-24 GB in FP16. A safe starting route is RTX 4090 24GB or L40S-class route.
For FLUX.1-dev, the route decision starts with memory fit. The model usually needs about 10-12 GB in INT4, 14-16 GB in INT8, and 22-24 GB in FP16 before you add runtime headroom.
- Safe starting GPU: RTX 4090 24GB or L40S-class route
- Best general production routes: RTX 4090 24GB, L40S 48GB, A10G 24GB
- Add headroom for runtime behavior instead of treating the model size as the whole answer.
VRAM table
FLUX.1-dev memory and route profile
FLUX.1-dev is primarily used for image generation and creative pipelines. Most teams start with the quickest safe answer for memory fit, then compare which production routes make sense.
The ranges on this page are practical starting points for planning. Actual deployment requirements still depend on runtime overhead, batching, and the execution framework.
Execution notes
What changes the route in production
A memory-fit answer is only useful if the route is healthy. Pages like this should explain that fit, latency, and route quality all matter once the model goes live.
For FLUX.1-dev, the most relevant follow-up pages are the cost page and the run-without-GPU page because those are the next practical questions most teams ask.
- Creative generation tools
- Batch image pipelines
- Interactive image apps
About the author
Platform engineer, Jungle Grid
Platform engineer documenting Jungle Grid's routing, pricing, and execution workflow from inside the product and codebase.
- Maintains Jungle Grid's public landing content, product docs, and SEO content library in this repository.
- Builds across the routing, pricing, and developer-facing product surfaces that the public site describes.
Why trust this page
This content is based on current Jungle Grid product behavior, public docs, and the live pricing and routing surfaces used throughout the site.
- FLUX.1-dev route guidance here uses the current model library values stored in Jungle Grid's public landing app.
- Cost and fit explanations align with the workload-first execution flow and live estimator exposed on the pricing surface.
- This page is reviewed against the current public docs and model-route assumptions used throughout the site.
Next step
Take FLUX.1-dev from research into a real route
Once the fit is clear, price the route and test one workload so you can compare the theory against live capacity.
Related pages
Related model pages
Use the sibling pages below to compare requirements, cost, and remote execution options for this model.
FAQ
Frequently asked
What GPU do I need for FLUX.1-dev?
A safe starting answer is RTX 4090 24GB or L40S-class route. Lighter quantized routes can use less memory, but that is the clean default most teams need first.
Can FLUX.1-dev run on a consumer GPU?
In many cases yes, especially with quantization. The safer answer still depends on the exact precision, runtime overhead, and traffic shape you expect in production.
Why should this page link to pricing and run-without-GPU pages?
Because the next user question after requirements is usually either cost or whether the model can be run remotely without buying hardware directly.