SD.Next vs Sogni

SD.Next is an open-source server application and web interface for generating, editing, captioning, upscaling and processing AI images and videos. Workflows include text-to-image, image-to-image, text-to-video, image-to-video, inpainting and outpainting, with PNG and JPG output. The project supports dozens of models and can automatically download selected reference models. Guidance features include LoRA, ControlNet, IPAdapters and Prompt Enhance. Image processing tools cover captioning, tagging, upscaling, interpolation, colorization, filtering and color correction. SDNQ quantization is described as reducing VRAM use by up to 4x; Balanced Offload balances CPU and GPU memory for larger models on limited hardware. Listed hardware options include CUDA, ROCm, ZLUDA, Intel IPEX XPU, OpenVINO, DirectML, Apple M1/M2 MPS, ONNX/Olive and CPU-only execution. SD.Next runs on Linux, macOS and Windows, and provides API access. The project describes desktop and mobile interfaces and localization in about 15 languages. Its security policy says it does not send or share data externally, track user or system data, store inputs or results, or use analytics services. The repository identifies Apache-2.0 as its license.

Sogni is an AI image-generation service with text-to-image creation, reference-image support, image editing, and API access. It supports PNG, JPG, and WebP output, and commercial use is included with Sogni Unlimited. The Free plan offers unlimited on-device rendering on Mac and iOS, more than 150 open-source models locally, free monthly Spark for filtered Supernet jobs, basic Supernet cloud rendering, and limited API access. Premium Spark costs $1.99 a month and provides pay-as-you-go Spark credits, a priority queue, and access to supported premium and partner models, with no monthly commitment. Sogni Unlimited costs $20 a month and includes credit-free fair-use Supernet rendering for supported open-weight models, full SDK and API access, up to four concurrent image jobs, and a three-day free trial. Unlimited Pro costs $50 a month and allows up to 16 concurrent image jobs, with higher-priority queue placement and a larger media queue. Enterprise has custom pricing, dedicated Supernet capacity, custom rate limits and SLA, and team account management.