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Budget FLUX: Klein, Schnell, dev and Krea for pennies a picture

FLUX.2 Klein is the cheapest picture model in solorender, and Schnell, dev and Krea cost only a little more. Real results from each, what they get right, and where they slip on spelling.

FLUX.2 Klein 4B1 credit a pictureFLUX.2 Klein 9B1 credit a pictureFLUX Schnell3 credits a pictureFLUX.1 [dev]3 credits a pictureFLUX Krea4 credits a picture

Real results

Made in solorender with these models. Nothing retouched.

FLUX.2 Klein 4B: A cold-brew bottle with its label spelled right, condensation on the glass.
FLUX.2 Klein 4B. A cold-brew bottle with its label spelled right, condensation on the glass.A glass bottle of cold-brew coffee on a sunlit wooden cafe counter, condensation on the glass, a paper label that reads "SOLORENDER ROAST — Dark & Bold", soft morning light, shallow depth of field, product photo
FLUX.2 Klein 4B: The same model on a neon sign: it wrote "OPEN TE LATE". Its first run of this prompt was spelled right.
FLUX.2 Klein 4B. The same model on a neon sign: it wrote "OPEN TE LATE". Its first run of this prompt was spelled right.A neon sign that reads "OPEN LATE" above a rainy city diner window at night, reflections on the wet street, photo
FLUX Schnell: A clean product photo of a matte black bottle.
FLUX Schnell. A clean product photo of a matte black bottle.a single matte black insulated water bottle standing on a plain white studio table, soft light, clean product photo
FLUX Schnell: A blue mug on a white table, from a nine-word prompt.
FLUX Schnell. A blue mug on a white table, from a nine-word prompt.a blue ceramic coffee mug on a white table, studio photo
FLUX Schnell: A mountain lake from four words.
FLUX Schnell. A mountain lake from four words.sunlit mountain lake, photograph
FLUX Schnell: A bicycle in one of our built-in styles, a two-colour riso print look.
FLUX Schnell. A bicycle in one of our built-in styles, a two-colour riso print look.a red bicycle leaning on a brick wall, in the style of @riso-ink
FLUX.1 [dev]: Teal water, a warm sunset strip and the lamp lit orange.
FLUX.1 [dev]. Teal water, a warm sunset strip and the lamp lit orange.A lighthouse on a rocky coast at dusk, waves breaking, warm light glowing in the lamp room, photographic
FLUX Krea: The same prompt with a softer, filmic look: peach sky and rising spray.
FLUX Krea. The same prompt with a softer, filmic look: peach sky and rising spray.A lighthouse on a rocky coast at dusk, waves breaking, warm light glowing in the lamp room, photographic

Best for

  • ✓Trying ideas cheaply. Run ten versions of a prompt for less than one picture on a premium model, then finish the winner elsewhere
  • ✓Simple product photos and scenes. Our bottle, mug and lake came out clean from short prompts
  • ✓Short text on a label or sign, on Klein 4B. Check the spelling, because it is not right every time
  • ✓Our built-in styles: add @ and a style name to the prompt, as in the bicycle picture

Where it struggles

  • —Spelling is hit and miss. Klein 4B spelled our neon sign right once and wrong once from the same prompt. Run two or three and keep the clean one, or use Nano Banana 2 or Ideogram for text
  • —Details can drift from the prompt. Schnell gave our cartoon robot two lanterns when we asked for one
  • —For several reference pictures in one scene, or a face that must stay the same, step up to FLUX 2 Pro

Prompts that work

Each one opens the studio with the prompt already in the box. They are also one click away inside the app, under the prompt field.

Product photo

Try it →

a single matte black insulated water bottle standing on a plain white studio table, soft light, clean product photo

Name the object, the surface and the light. That is enough.

Label with text

Try it →

A glass bottle of cold-brew coffee on a sunlit wooden cafe counter, condensation on the glass, a paper label that reads "SOLORENDER ROAST — Dark & Bold", soft morning light, shallow depth of field, product photo

Put the words in quotes. Run two or three and keep the one spelled right.

Quick scene

Try it →

sunlit mountain lake, photograph

Four words work. Add detail only where you disagree with the result.

Built-in style

Try it →

a red bicycle leaning on a brick wall, in the style of @riso-ink

Swap @riso-ink for any style from the Styles page.

Questions

What is the cheapest AI image generator on solorender?

FLUX.2 Klein 4B and Klein 9B. FLUX Schnell, FLUX.1 [dev] and FLUX Krea cost a little more. Live prices for all five are at the top of this page.

What is the difference between FLUX Schnell, dev and Krea?

Schnell is built for speed and drafts. FLUX.1 [dev] is a step up in quality for finished work. FLUX Krea is tuned for a more natural, less glossy look, as the two lighthouse pictures show.

Can budget FLUX models write text?

Klein 4B can write short text, such as a label or a sign, but not every time. In our test it got the sign right once and wrong once. Check the spelling before you use it.

Run these for real

Every model in this guide is live in solorender. Credits never expire.

Open FLUX.2 Klein 4B →