Flux vs Stable Diffusion
Flux is paid, while Stable Diffusion has a free plan plus paid upgrades.
Which one should you try?
Stable Diffusion
FreemiumBest for Developers and creators who want to self-host or fine-tune image models
Pricing, capabilities and platforms side by side. Prices are as of the "Pricing checked" date in the table.
Flux
Flux converts text descriptions into images through a diffusion model that competes directly with DALL-E 3 and Midjourney on visual quality and prompt adherence. The tool addresses the gap between accessibility and control: a web UI for casual users, a scalable API for production workloads, and open-weight model variants for local deployment. The free tier offers limited monthly generations, while paid API usage runs on a per-image basis (roughly $0.055 per standard image as of late 2024). The main friction point is infrastructure reliability—users report periodic service disruptions that can disrupt batch processing workflows.
Stable Diffusion
Stability AI's text-to-image model family (SD 3.5, SDXL). Self-host under a revenue-limited license or use the hosted API.
| Attribute | Flux | Stable Diffusion |
|---|---|---|
| Pricing | Paid | Freemium |
| Price | API pay-as-you-go per megapixel; FLUX.2 [klein] weights free (Apache 2.0); FLUX.2 [dev] non-commercial | Free under the Community License (under US$1M annual revenue); Enterprise license custom; API usage priced separately |
| Pricing checked | Oct 19, 2026 | Oct 17, 2026 |
| Free trial | Not stated | Not stated |
| Open source | No | No |
| Has API | Yes | Yes |
| Self-hosted option | Yes | Yes |
| Platforms | Web playground, API; open weights for local use | Self-hosted weights, Stability AI API, cloud partners, Stable Assistant (web) |
| Languages | English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese (Simplified & Traditional) | — |
| Released | 2024-08 | — |
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Made up your mind?
Stable Diffusion
FreemiumBest for Developers and creators who want to self-host or fine-tune image models
Specs come from each tool's own site and docs (how we test). AIDiveForge is editorially independent.