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📖 The AI Tool Bible

Flux vs PromptHero

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 Flux logo
Flux
Image Generation
PromptHero logo
PromptHero
Image Generation
TaglineBlack Forest Labs' open-weights image model — rivals Midjourney quality.Searchable prompt library and image generator for Midjourney, Stable Diffusion, DALL-E and other image/video models.
CategoryImage GenerationImage Generation
PricingFreemium· FLUX.2 [max]: $0.07 · FLUX.2 [pro]: $0.03 · FLUX.2 [klein] 9B: $0.015 · FLUX.2 [klein] 4B: $0.014 · FLUX.2 [flex]: $0.05Freemium· Free tier; PRO ~$24.66/mo billed yearly (7,200 credits)
ModelFlux.1 [schnell / dev / pro]Multi-model (Stable Diffusion, Midjourney, DALL-E, Sora)
Editorial score9.0 / 107.7 / 10
Use cases
open sourceself-hostedhigh quality
prompt-discoverytext-to-imageprompt-engineeringstyle-referenceai-art-inspiration
Pros
  • Open weights for [schnell]/[dev] variants
  • Quality rivals Midjourney
  • Excellent prompt adherence
  • Self-hostable
  • Massive searchable library of prompts with the source images attached
  • Covers all major image and video models in one place
  • Built-in generator with monthly credits on paid plans
  • Prompt-engineering course and tutorials for beginners
Cons
  • [pro] is API-only
  • Self-hosting needs serious GPU
  • No public API for programmatic prompt search or generation
  • In-browser generator is limited compared to native Midjourney or ComfyUI
  • Quality of community prompts is uneven and unverified
Websiteblackforestlabs.aiprompthero.com
Pick Flux if
  • ✅ Open weights for [schnell]/[dev] variants
  • ✅ Quality rivals Midjourney
  • ✅ Excellent prompt adherence
  • ✅ Self-hostable
Pick PromptHero if
  • ✅ Massive searchable library of prompts with the source images attached
  • ✅ Covers all major image and video models in one place
  • ✅ Built-in generator with monthly credits on paid plans
  • ✅ Prompt-engineering course and tutorials for beginners
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