Stable Diffusion 3.5 is the open-source workhorse — free, self-hostable and endlessly customisable, if not the absolute top on raw quality.
Best for
- Free local / offline generation with zero per-image cost
- Heavy customisation — LoRAs, fine-tunes, ControlNet
- Privacy-sensitive or air-gapped workflows
- Runs on consumer GPUs (Medium / 2.5B is light)
How it compares — and the India angle
- The cheapest serious option for India: a one-time GPU/laptop, then unlimited free images, no USD subscription.
- Out-of-box quality trails FLUX.2 / Imagen 4 / Midjourney, but community fine-tunes close the gap for specific styles.
- Ideal for Indian creators/students who can't pay monthly fees — runs on a mid-range RTX GPU or free Colab.