FLUX.1 Kontext Pro is Black Forest Labs's multi-turn image editing model. It is built to preserve character identity, style, and visual consistency across sequential editing steps. It delivers fast inference relative to earlier models in its class.
import { experimental_generateImage as generateImage } from 'ai';
const result = await generateImage({ model: 'bfl/flux-kontext-pro', prompt: 'A red balloon on a wooden table.'});Black Forest Labs released FLUX.1 Kontext Pro on June 1, 2025 as the founding model of the Kontext suite. Black Forest Labs describes it as oriented toward fast iterative image editing: a model that lets you build on previous edits through multiple turns while keeping characters, identities, styles, and distinctive features consistent across scenes and viewpoints.
The architecture accepts both a text instruction and one or more reference images as input. Rather than regenerating a scene from scratch, the model identifies which elements should change and which to preserve. It applies targeted local modifications while leaving unspecified regions intact. Black Forest Labs's KontextBench evaluation covers six editing capabilities: character consistency across environments, local region editing, style reference transfer, text within images, background replacement, and interactive speed. Kontext Pro achieved its highest scores on text editing and character preservation tasks.
The multi-turn loop is what sets Kontext Pro apart operationally. Each edited output becomes the reference image for the next instruction. An editing session can progress through many sequential changes (adjusting clothing, then placing the character in a new scene, then modifying lighting) without losing the identity thread from step one. Black Forest Labs notes that sessions beyond roughly six turns can introduce visual artifacts.