Image generators

FLUX.1 schnell

The fast, cheap Flux; four inference steps, and the only generator here that costs under a cent.

What it is

  • Maker: Black Forest Labs
  • Called through: Replicate
  • Model string: black-forest-labs/flux-schnell
  • Price per render: $0.003 (source, read 2026-09-07)
  • Seed accepted on this path: yes
  • Negative prompt accepted: no
  • Prompt rewriting switched off by: no switch exists
  • In the catalog pipeline: yes

On an explicit prompt this generator returns no image on an explicit prompt. Measured on 2026-08-04 by sending an explicit prompt and looking at the returned pixels (the site pipeline records it in src/app/api/generate/route.ts). Returns no image; the run fails and is not billed. The comparison sends clothed documentary prompts only.

Across 9 peoples, 36 renders

Cohort score -2.64: the mean over peoples of this generator's mean render log-likelihood score, every people weighted the same; higher is a closer match.

DimensionMean share of renders inside the measured rangePeoples scored
Skin tone (Fitzpatrick)100%6
Eye color83%6
Epicanthic fold100%6
Hair texture100%6
Hair color80%5

By prompt register: traditional -2.64 over 6 peoples.

Peoples in the comparison, alphabetical

Each cell shows every generator's score for that people, this one in gold. Open a people to see the renders side by side. The list is alphabetical and stays that way.

  • Acholi
    • Recraft V3: none
    • FLUX 1.1 Pro: none
    • FLUX.1 schnell: none
    • Stable Image Core: none
    • Ideogram 3.0 Turbo: none
  • Balochi
    • Recraft V3: none
    • FLUX 1.1 Pro: none
    • FLUX.1 schnell: none
    • Stable Image Core: none
    • Ideogram 3.0 Turbo: none
  • Chechens
    • Recraft V3: -2.67, 13 of 16 plausible
    • FLUX 1.1 Pro: -5.43, 16 of 20 plausible
    • FLUX.1 schnell: -8.79, 12 of 20 plausible
    • Stable Image Core: -4.46, 12 of 18 plausible
    • Ideogram 3.0 Turbo: -3.74, 17 of 19 plausible
  • Hmong
    • Recraft V3: -1.02, 20 of 20 plausible
    • FLUX 1.1 Pro: -1.65, 19 of 19 plausible
    • FLUX.1 schnell: -0.75, 16 of 16 plausible
    • Stable Image Core: -0.87, 20 of 20 plausible
    • Ideogram 3.0 Turbo: -1.02, 20 of 20 plausible
  • Maasai
    • Recraft V3: none
    • FLUX 1.1 Pro: none
    • FLUX.1 schnell: none
    • Stable Image Core: none
    • Ideogram 3.0 Turbo: none
  • Marathi
    • Recraft V3: -1.91, 20 of 20 plausible
    • FLUX 1.1 Pro: -2.23, 20 of 20 plausible
    • FLUX.1 schnell: -1.91, 18 of 18 plausible
    • Stable Image Core: -0.82, 18 of 18 plausible
    • Ideogram 3.0 Turbo: -0.89, 19 of 19 plausible
  • Uyghurs
    • Recraft V3: -2.40, 20 of 20 plausible
    • FLUX 1.1 Pro: -2.00, 20 of 20 plausible
    • FLUX.1 schnell: -1.88, 19 of 19 plausible
    • Stable Image Core: -1.98, 20 of 20 plausible
    • Ideogram 3.0 Turbo: -1.90, 20 of 20 plausible
  • Uzbeks
    • Recraft V3: -3.06, 18 of 19 plausible
    • FLUX 1.1 Pro: -3.89, 13 of 15 plausible
    • FLUX.1 schnell: -2.14, 17 of 17 plausible
    • Stable Image Core: -2.22, 19 of 19 plausible
    • Ideogram 3.0 Turbo: -2.15, 19 of 19 plausible
  • Zulu
    • Recraft V3: -0.37, 20 of 20 plausible
    • FLUX 1.1 Pro: -0.35, 18 of 18 plausible
    • FLUX.1 schnell: -0.35, 18 of 18 plausible
    • Stable Image Core: -0.37, 20 of 20 plausible
    • Ideogram 3.0 Turbo: -0.34, 18 of 18 plausible

How the comparison works · All models