FLUX 2 Klein Base 4B: API pricing, providers and specs
FLUX 2 Klein Base 4B is a image model by Black Forest Labs. One provider serves it: WaveSpeedAI, at $0.01 /run.
How FLUX 2 Klein Base 4B compares
Against the 81 image models on the site priced the same way.
- Cheap for its class: at $0.01 /run, its lowest price undercuts 90% of comparable models (median $0.03).
- 1 providers serve it; 0% of comparable models have fewer.
- Its weights are open under the Apache 2.0 license: commercial use allowed.
FLUX 2 Klein Base 4B prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Task | Output |
|---|---|---|
| WaveSpeedAI | text-to-image | From$0.01/run |
| WaveSpeedAI | image-to-image | From$0.015/run |
Specs
- Type
- Image
- Maker
- Black Forest Labs
- Inputs
- Text
- Outputs
- Image
- Capabilities
- —
- Released
- Jan 14, 2026
- License
- Apache 2.0commercial use allowed
- Open weights
- Yes, downloadable
- Parameters
- 3.9B
- Monthly searches
- 10K
Alternatives to FLUX 2 Klein Base 4B
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Arena | Providers |
|---|---|---|---|
| FLUX 2 Klein Base 4Bthis model | $0.01/run | — | 1 |
 Photon | $0.015/run | 1036 | 2 |
| GPT Image 2.5 | $0.025/run | — | 3 |
 Z Image | $0.005/run | — | 3 |
 HiDream O1 Image Dev | $0.02/run | — | 2 |
| HiDream I1 Dev | $0.012/run | — | 2 |
 Hunyuan Image 2.1 | $0.025/run | — | 3 |
| HiDream E1 Full | $0.024/run | — | 1 |
| Jib Mix Qwen Image | $0.02/run | — | 1 |
More from Black Forest Labs
FLUX 2 Klein Base 4B FAQ
The lowest price for FLUX 2 Klein Base 4B is $0.01 /run, at WaveSpeedAI.
Yes. FLUX 2 Klein Base 4B's weights can be downloaded from its maker's Hugging Face page, under the Apache 2.0 license.
About 3.9B, as the safetensors metadata of its official Hugging Face repo states.
1 API providers serve FLUX 2 Klein Base 4B. Compare their prices above, or open a provider to see everything it offers.
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