All setup guidesCHOOSE THE WAY YOU WANT TO WORK
FLUX.2 Klein 9B FP8 (Recommended) or FLUX.2 Klein 4B (Apache 2.0)?
Start with the result you need, the control you want and the setup you are comfortable doing. A lower hourly rate does not necessarily mean a cheaper finished result.
This compares ModelPilot’s configured setup, not measured output quality or a current GPU quote. Model availability and results depend on the selected workflow and inputs.
FLUX.2 Klein 9B FP8 (Recommended)
- Configured hardware
- GPU Efficient (L4)
- Hardware memory
- 24 GB in this configured tier; not a measured minimum for every input.
- Configured workflow
- comfyui-flux2
- Output quality
- No controlled quality comparison is established by this page.
- Time and cost
- Review the current hardware quote. Include startup and running time; retained storage is separate.
FLUX.2 Klein 4B (Apache 2.0)
- Configured hardware
- GPU Efficient (L4)
- Hardware memory
- 24 GB in this configured tier; not a measured minimum for every input.
- Configured workflow
- comfyui-flux2
- Output quality
- No controlled quality comparison is established by this page.
- Time and cost
- Review the current hardware quote. Include startup and running time; retained storage is separate.
Configuration details, not performance measurements| Setting | FLUX.2 Klein 9B FP8 (Recommended) | FLUX.2 Klein 4B (Apache 2.0) |
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| Model family | flux2-klein | flux2-klein |
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| Variant | 9B FP8 (Recommended) | 4B (Apache 2.0) |
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| Type | image | image |
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| Deployment template | comfyui-flux2 | comfyui-flux2 |
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| GPU tier | GPU Efficient (L4) | GPU Efficient (L4) |
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| GPU | NVIDIA L4 | NVIDIA L4 |
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| VRAM | 24GB | 24GB |
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| vCPU / RAM / disk | 12 vCPU / 50GB RAM / 200GB disk | 12 vCPU / 50GB RAM / 200GB disk |
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Compare the whole job, not just the headline price
- Use the same input, workflow, output size and acceptable quality when comparing options.
- For a workspace, include model download, startup, rendering and idle time until Stop succeeds.
- For an API, check the model’s request or runtime billing, failed-request rules and dedicated-capacity settings.
- Check storage, your maximum charge and what happens if capacity is unavailable.
Guide checked October 25, 2026. Provider terms and capacity can change. No claim of lowest price, fastest generation or better output is made here.