What license does FLUX.2 [klein] 9B use?

FLUX Non-Commercial License. The 9B variant is for non-commercial use only.

FLUX.2 [klein] 9B

Text-to-image generation with FLUX.2 [klein] 9B from Black Forest Labs. Enhanced realism, crisper text generation, and native editing capabilities.

By Black Forest Labs

Pricing: $0.006 per megapixel

Overview

FLUX.2 [klein] 9B is a 9-billion parameter image generation model from Black Forest Labs. Distilled to just 4 inference steps for sub-second generation. Uses an 8B Qwen3 text embedder and supports up to 4 megapixel output resolution.

Key Features

**Sub-second inference** — distilled to 4 steps
**Higher quality than 4B** — 9B parameters for richer detail and diversity
**Text rendering** — strong text-in-image capabilities from FLUX.2
**Up to 4MP resolution** — dimensions must be multiples of 16

When to Use

Choose the 9B variant over 4B when output quality and diversity matter more than speed. Note: this model uses the FLUX Non-Commercial License.

Examples

A neon-lit Tokyo alleyway at night with a vending machine glowing amber, steam rising from grates, wet reflections on asphalt, cinematic
A neon sign reading 'OPEN LATE' hanging in the rain-streaked window of a Tokyo ramen shop at 2am, steam rising from inside, warm amber glow against the blue night, wet cobblestones reflecting the sign, a single red paper lantern, shot on 35mm film with grain

Frequently asked questions

What is FLUX.2 [klein] 9B?: Text-to-image generation with FLUX.2 [klein] 9B from Black Forest Labs. Enhanced realism, crisper text generation, and native editing capabilities.
What license does FLUX.2 [klein] 9B use?: FLUX Non-Commercial License. The 9B variant is for non-commercial use only.

Related models

FLUX.2 [klein] 9B — Edit, Image-to-image editing with FLUX.2 [klein] 9B from Black Forest Labs. Precise modifications using natural language descriptions and hex color control.
GPT Image 2, GPT Image 2.0, OpenAI's latest image model, is capable of creating extremely detailed images with fine typography.
Ideogram v3, Generate high-quality images, posters, and logos with Ideogram V3. Features exceptional typography handling and realistic outputs optimized for commercial and creative use.
FLUX.2 [klein] 4B, Compact 4-billion parameter text-to-image model from Black Forest Labs. Step-distilled to 4 inference steps for sub-second generation. Unifies text-to-image and image editing in a single architecture with Apache 2.0 licensing.

Discoverable surfaces

Dispatch endpoint: POST https://api.runflow.io/v1/models/flux-2-klein-9b/runs
Per-model spec (markdown): https://app.runflow.io/models/flux-2-klein-9b/llms.txt
Docs page: https://docs.runflow.io/models/flux-2-klein-9b
Public OpenAPI spec: https://docs.runflow.io/api/openapi.public.json
Agent skill (start here): https://www.runflow.io/.well-known/agent-skills/runflow/SKILL.md