# FLUX.2 Klein 4B Pricing

Source: https://docs.prodia.com/models/flux-2-klein-4b-pricing/

This page lists the per-image price for the [FLUX.2 Klein](https://docs.prodia.com/models/flux-2-klein/) 4B distilled job types:

- `inference.flux-2.klein.4b.txt2img.v1` and `inference.flux-2.klein.4b.img2img.v1`
- `inference.flux-2.klein.txt2img.v1` and `inference.flux-2.klein.img2img.v1` (the default aliases, currently routed to 4B distilled)

Every job is billed as a single product, chosen by the output resolution and the number of input images. Steps, aspect ratio, seed and style preset do not change the price.

> note:
>
> These prices take effect on 2026-10-01. Until then the current price sheet applies. Use [`?price=true`](https://docs.prodia.com/reference/price/) to read back the exact product and dollar amount charged for any job.

### Price per image

| Inputs                    | Up to 1 MP | Up to 2 MP | Up to 3 MP | Over 3 MP |
| ------------------------- | ---------: | ---------: | ---------: | --------: |
| Text-to-image (no inputs) |    $0.0005 |    $0.0027 |    $0.0040 |   $0.0059 |
| 1 input image             |    $0.0010 |    $0.0027 |    $0.0040 |   $0.0059 |
| 2 input images            |    $0.0017 |    $0.0034 |    $0.0068 |   $0.0084 |
| 3 input images            |    $0.0025 |    $0.0065 |    $0.0078 |   $0.0084 |
| 4 input images            |    $0.0033 |    $0.0065 |    $0.0080 |   $0.0109 |
| 5 input images            |    $0.0045 |    $0.0068 |    $0.0102 |   $0.0109 |
| 6 input images            |    $0.0054 |    $0.0088 |    $0.0116 |   $0.0132 |
| 7 input images            |    $0.0068 |    $0.0092 |    $0.0130 |   $0.0145 |
| 8 input images            |    $0.0100 |    $0.0108 |    $0.0148 |   $0.0170 |

### How the buckets work

*Output resolution* is measured in megapixels (`width × height`):

| Bucket     | Pixel range | Example sizes                 |
| ---------- | ----------- | ----------------------------- |
| Up to 1 MP | ≤ 1,048,576 | 1024×1024, 1280×768, 1344×768 |
| Up to 2 MP | ≤ 2,096,704 | 1440×1440, 1920×1080          |
| Up to 3 MP | ≤ 3,140,784 | 1728×1728, 2048×1440          |
| Over 3 MP  | > 3,140,784 | 2048×2048, 1792×1792          |

*Input images* are counted from the `images` array on `img2img` jobs (1 to 8). The size of the input images does not affect the price; only the count and the output resolution do. `txt2img` jobs always fall in the no-inputs row.

### Rules of thumb

- A 1024×1024 text-to-image generation is $0.0005.
- Adding one input image at 1 MP doubles the price to $0.0010.
- Each additional input image adds roughly $0.001 at 1 MP.
- Going from 1 MP to over 3 MP output costs about 12× more for text-to-image.
- The most expensive combination, 8 input images at over 3 MP, is $0.0170.

### Product codes

The `product` field returned by `?price=true` follows the pattern `inference-flux-2-klein[-N-in]-M-mp`, where `N` is the number of input images (omitted for text-to-image) and `M` is the megapixel bucket (1 to 4). For example a 2-input job rendered at 1920×1080 bills as `inference-flux-2-klein-2-in-2-mp`.

[Pricing](https://docs.prodia.com/reference/pricing/) — Prices for every model on Prodia.

[FLUX.2 Klein](https://docs.prodia.com/models/flux-2-klein/) — Model overview, variants and job types.

[Job Pricing](https://docs.prodia.com/reference/price/) — Retrieve the exact cost of a job with the price query parameter.