> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ttapi.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Flux.2[klein] 4B API Documentation

> Integrate the Flux.2[klein] 4B API for high-quality AI image generation with balanced speed, flexibility, and prompt responsiveness.



## OpenAPI

````yaml openapi/en/flux.json POST /bfl/v1/flux-2-klein-4b
openapi: 3.1.0
info:
  title: Flux API DOCS
  version: 1.0.0
  description: >-
    TTAPI Flux API service, currently integrating the most advanced video large
    model Sora2.
servers:
  - url: https://api.ttapi.io
security: []
paths: {}

````