| --- |
| license: apache-2.0 |
| language: |
| - en |
| tags: |
| - text-to-image |
| - flux |
| - flux-2-klein |
| - api |
| - apimodels |
| --- |
| |
| # FLUX.2 Klein — hosted API access |
|
|
| This repository is **not the model weights** — it documents running **FLUX.2 Klein** through a |
| hosted API on **[apimodels.app](https://apimodels.app)**, a multi-model gateway where one key and one |
| OpenAI-compatible endpoint reach 110+ image, video, audio and language models. |
|
|
| - Original model & weights: **https://huggingface.co/black-forest-labs/FLUX.2-klein-4B** |
| - Authors: Black Forest Labs |
| - License: Apache-2.0 (FLUX.2 [klein] 4B) |
|
|
| Independent hosted-API integration. Not affiliated with or endorsed by the authors; does not |
| redistribute their weights. All credit for the model is theirs. |
|
|
| ## What it does |
|
|
| The open, Apache-2.0 4B variant of Black Forest Labs’ FLUX.2 family. Text-to-image plus up to a few reference images. |
|
|
|  |
|
|
| *A sample produced through the apimodels.app API.* |
|
|
| ## Use it via API |
|
|
| On apimodels.app the model is served as **flux-2-klein-4b**. Get a key at https://apimodels.app, then: |
|
|
| ```bash |
| # text-to-image (sync: pass a WxH size, get the image inline) |
| curl -X POST https://api.apimodels.app/v1/images/generations \ |
| -H "Authorization: Bearer YOUR_API_KEY" -H "Content-Type: application/json" \ |
| -d '{ "model": "flux-2-klein-4b", "prompt": "a cozy bookstore cafe, warm light", "size": "1360x768" }' |
| ``` |
|
|
| ## Pricing |
|
|
| | Tier | Price | |
| | --- | --- | |
| | flux-2-klein-4b | $0.006 / image (flat) | |
| | each reference image | +$0.0015 (up to 3) | |
|
|
| Failed jobs are not charged. Result files are kept for 7 days. |
|
|
| ## Links |
|
|
| - Run it: **[apimodels.app](https://apimodels.app)** |
| - Original model: https://huggingface.co/black-forest-labs/FLUX.2-klein-4B |
|
|
