# flux-2-klein-4b

FLUX.2 [klein] 4B is the fastest and most cost-effective model in the FLUX.2 family, optimized for high-throughput use cases while maintaining excellent image quality.

Pricing is based on the output image. The first generated megapixel is charged $0.014. Each subsequent megapixel is charged $0.001.

## Model Information

- **Organization**: [Black Forest Labs](/llm.txt)
- **Slug**: flux-2-klein-4b
- **Available at Providers**: 12
- **Release Date**: January 14, 2026

## Providers

| Provider | Name | $ Input (per 1M) | $ Output (per 1M) | Free | Link |
|----------|------|-----------------|------------------|------|------|
| [Nano-GPT](/llm/nanogpt.txt) | FLUX.2 [klein] 4B |  |  |  |  |
| [OpenRouter](/llm/openrouter.txt) | FLUX.2 Klein 4B | 0.00 | 0.00 |  | [View](https://openrouter.ai/black-forest-labs/flux.2-klein-4b) |
| [Replicate](/llm/replicate.txt) | flux-2-klein-4b |  |  |  |  |
| [Vercel AI Gateway](/llm/vercel.txt) | FLUX.2 [klein] 4B |  |  |  |  |
| [DeepInfra](/llm/deepinfra.txt) | FLUX-2-klein-4b |  |  |  |  |
| [Poe](/llm/poe.txt) | Flux-2-Klein-4B |  |  |  | [View](https://poe.com/flux-2-klein-4b/api) |
| [Near AI](/llm/near.txt) |  | 1.00 | 1.00 |  |  |
| [Runware](/llm/runware.txt) | FLUX.2 [klein] 4B |  |  |  |  |
| [WaveSpeed AI](/llm/wavespeed.txt) | flux-2-klein-4b | 0.80 |  |  |  |
| [Airforce API](/llm/airforce.txt) | flux-2-klein-4b |  |  |  |  |
| [Arena AI](/llm/arenaai.txt) |  |  |  |  |  |
| [Writingmate](/llm/writingmate.txt) | Black Forest Labs: FLUX.2 Klein 4B |  |  |  | [View](https://writingmate.ai/models/black-forest-labs/flux.2-klein-4b) |

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[← Back to all providers](/llm.txt)