Black Forest Labs

Generate Production-Quality Images with Flux 2 Flex

FLUX with references: blend up to ten images, build type, mock up screens.

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Flux 2 Flex

Same prompt, four engines

One prompt, four real outputs — this is why one subscription beats four.

FLUX 1.1 Ultra output for the astronaut prompt
FLUX 1.1 Ultra2.8s
GPT Image 2 output for the astronaut prompt
GPT Image 23.4s
FLUX 2 Pro output for the astronaut prompt
FLUX 2 Pro4.1s
FLUX 2 Flex output for the astronaut prompt
FLUX 2 Flex4.8s
This model

“A tiny astronaut asleep on a crescent moon” — one prompt, four engines, real outputs.

Anatomy of the prompt

The exact prompt behind the film above, in its working parts.

Made with Flux 2 Flex

Every frame is a real run — scroll the rail.

A chess set carved from ice and obsidian mid-game on a black mirror table, dramatic single side light, melting drops catching the glow, macro depth
“A chess set carved from ice and obsidian mid-game on a black mirror table, dramatic single side light, melting…”
A bold typographic poster where the word BLOOM is built from real macro flowers, on charcoal
“A bold typographic poster where the word BLOOM is built from real macro flowers, on charcoal”
One street corner blending three eras seamlessly: 1920s sepia on the left, 1970s kodachrome in the center, 2026 neon on the right
“One street corner blending three eras seamlessly: 1920s sepia on the left, 1970s kodachrome in the center, 202…”
A clean travel-app dashboard mockup on a floating phone, map with route pins, soft pastel gradient background
“A clean travel-app dashboard mockup on a floating phone, map with route pins, soft pastel gradient background”
A living room photo split down the middle: left cluttered and gray, right the same room styled bright and plant-filled
“A living room photo split down the middle: left cluttered and gray, right the same room styled bright and plan…”

What it can do

Aspect ratios1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3
Reference imagesUp to 10 — style & subject locking
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Prompts to steal

Tuned to this model — click any line to copy.

About Flux 2 Flex

Flux 2 Flex is Black Forest Labs' tunable, high-quality image model in the FLUX 2 family. It excels at text rendering — clean typography, readable captions, and complex layouts — making it the right pick for memes, posters, product mockups, and infographics.

The multi-reference feature lets you blend up to ten reference images into a single output while keeping the result coherent. Use it for style transfer, compositional guidance, character consistency, or when you want to combine elements from multiple sources. Image editing works at up to 4 megapixels.

Generate Flux 2 Flex images on NinjaChat. Access Flex alongside Flux 2 Pro, Imagen 4, GPT Image 2, and 25+ other models.

Getting better results

  • Put text you want rendered in 'quotes' inside the prompt
  • Use higher steps (20–30) for typography work
  • Reference images guide composition and style

Flux 2 Flex vs the alternatives

Where it wins, and where it doesn't.

vs Flux Pro Ultra

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Multi-reference, better text rendering

Pro Ultra is photorealism-first

vs GPT Image 2

View

Cheaper per image, more reference slots

GPT Image 2 has stronger world knowledge

vs Nano Banana Pro

View

More reference images, BFL ecosystem

Nano Banana integrates Gemini reasoning

Questions, answered.

Flux 2 Flex, and 50 more.

One subscription covers every model on NinjaChat, Flux 2 Flex included.