---
title: "flux-2-klein-4b — image generation score and price · Undominated.ai"
canonical: https://undominated.ai/images/bfl__flux-2-klein-4b/
description: "flux-2-klein-4b by Black Forest Labs: Text to image 1029.8 ±3.2; $0.014 per 1024×1024 image at Black Forest Labs; 2 sellers; as of 2026-11-05. Every figure traces to its source."
---

# flux-2-klein-4b — image generation score and price · Undominated.ai

> flux-2-klein-4b by Black Forest Labs: Text to image 1029.8 ±3.2; $0.014 per 1024×1024 image at Black Forest Labs; 2 sellers; as of 2026-11-05. Every figure traces to its source.

[Image generation](/images/)

# flux-2-klein-4b

Black Forest Labs · open weights

$0.014 per 1024×1024 image, cheapest of 2 sellers (Black Forest Labs)

Dominated: [flux-2-dev](/images/bfl__flux-2-dev/) is at least as good and at least as cheap on the same benchmark task, with a strict advantage on one axis. As of 2026-11-05 .

 [Inspect scores](#score-h)[Compare sellers](#offers-h)[Full leaderboard](/images/)[Sources](#prov-h)

## What was measured

| Board | Elo | Rank (UB) | Votes | Published |
| --- | --- | --- | --- | --- |
| Text to image | 1029.8 ±3.2 | 70 | 152,284 | 2026-11-04 |
| Image edit | 1187.1 ±2.9 | 53 | 541,193 | 2026-11-04 |

## What sellers charge

Spread across 2 distinct sellers: **1×** between cheapest and dearest at the reference unit.

| Seller | As the seller states it | Conditions | Normalised per 1024×1024 image | Source |
| --- | --- | --- | --- | --- |
| Black Forest Labs | 0.014 per_megapixel | megapixelIsUnit | $0.014 per megapixel, seller counts 1024x1024 as one | [docs.bfl.ai](https://docs.bfl.ai/quick_start/pricing) read 2026-09-06 · verified |
| FLUX.2 table: "FLUX.2 [klein] 4B \| from $0.014". The page's worked example: "a 2MP image with Klein 4B costs $0.014 + $0.001 = $0.015", so the second megapixel adds $0.001. | | | | |
| DeepInfra | 0.014 per_image | resolution 1024x1024 | $0.014 as stated at 1024x1024 | [api.deepinfra.com](https://api.deepinfra.com/models/list) read 2026-11-05 · feed |

## Provenance

 Read the full source record - Quality: [huggingface.co](https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset), licensed cc-by-4.0.
 - Prices: [docs.bfl.ai](https://docs.bfl.ai/quick_start/pricing) , [api.deepinfra.com](https://api.deepinfra.com/models/list)
 - Built 2026-11-05 from the catalogue snapshot in this repository.

Arena Leaderboard Dataset by Arena (lmarena-ai), https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Filtered to the "overall" category; no scores were altered.

## Continue your investigation

 - [Explore all model rankings](/rankings/)
- [Compare video models](/video/)
- [Find language models](/models/)
- [Read evidence rules](/methodology/)
- [Report a price](/report/)