F
Flux Review & Score
Black Forest Labs' open image model -- 630M+ runs on Replicate
86
AI Image Generationopen-source
Visit WebsiteEditorial review updated Mar 16, 2026
Score Breakdown
The overall score is an editorial weighted score across quality, pricing, ease of use, features, speed, and community. Public benchmarks below are supporting evidence and cited references, not an automatic scoring formula.
Quality9/10
Pricing9.5/10
Ease of Use6.5/10
Features9/10
Speed7.5/10
Community9/10
About Flux
Flux by Black Forest Labs (the team behind Stable Diffusion) dominates open-source image generation with 630M+ runs on Replicate for Schnell alone. Flux 2 (released Nov 2025) ranks #3 on the LMArena text-to-image leaderboard (Elo 1168) with improved text rendering, multi-reference support, and JSON-structured prompting. The ecosystem spans 31+ model endpoints on Replicate, 247+ community LoRA fine-tunes, and deep CivitAI/ComfyUI integration. Schnell costs $0.003/image; LoRA training takes ~2 minutes for ~$1.50.
Pros & Cons
Pros
- 630M+ runs -- most-used image model on Replicate
- Flux 2 ranks #3 on LMArena with reliable text rendering
- 247+ LoRA fine-tunes on Replicate; train your own for ~$1.50
- Open weights (Dev); Klein 4B is Apache 2.0 licensed
Cons
- Flux 2 does not support negative prompts (describe what you want only)
- 12B+ params requires substantial GPU for local use
- Commercial licensing split: API use OK, downloaded weights restricted
- Prompt-sensitive -- requires learning Flux-specific phrasing
User Ratings
Rate this tool
7/10
1510
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Frequently Asked Questions
- What is Flux?
- Flux by Black Forest Labs (the team behind Stable Diffusion) dominates open-source image generation with 630M+ runs on Replicate for Schnell alone. Flux 2 (released Nov 2025) ranks #3 on the LMArena text-to-image leaderboard (Elo 1168) with improved text rendering, multi-reference support, and...
- How much does Flux cost?
- Flux uses a open-source pricing model. Visit their website for current pricing details.
- What is Flux's score on AIToolScore?
- Flux has an overall score of 86/100 on AIToolScore, rated "Excellent". This score is based on a weighted evaluation of quality, pricing, ease of use, features, speed, and community.
- What are the main advantages of Flux?
- The key advantages of Flux include: 630M+ runs -- most-used image model on Replicate; Flux 2 ranks #3 on LMArena with reliable text rendering; 247+ LoRA fine-tunes on Replicate; train your own for ~$1.50; Open weights (Dev); Klein 4B is Apache 2.0 licensed.
- How does Flux compare to alternatives?
- Flux competes with Nano Banana Pro, Stable Diffusion, Midjourney, Canva AI in the AI Image Generation category. Compare them side-by-side on AIToolScore to see detailed score breakdowns across six criteria.
- What type of AI tool is Flux?
- Flux is categorized as a AI Image Generation tool on AIToolScore.
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