Copax – Crafting AI, from Idea to Product
“Where AI takes shape”
Figures aggregated/estimated from the platforms (checked 10/2026), updated periodically.
Story
I am Ngô Thuần, known in the international AI community by the nickname Copax.
I started as a SharePoint developer, spending about 4 years building enterprise management solutions on the Microsoft cloud platform. When Stable Diffusion emerged, I left my corporate job to focus entirely on generative AI.
Since 2023, I have released self-trained models on Civitai, later expanding to Tensor.art (under the handle SDG), SeaArt, Mage.space, and Hugging Face. The Copax TimeLess and SDG-Realistic model series have been used hundreds of thousands of times. I then moved on to building AI apps from custom ComfyUI workflows, creating over 150 virtual characters on Fizzz, and returning to my core programming strengths: building backends, credit systems, multi-provider API gateways, and desktop software for AI music and video processing.
SDG (sydigi.com) is where I bring it all together: software, APIs, and knowledge, making AI practical and accessible for everyone.
Expertise
- AI Image Model Training: Checkpoints and LoRAs for SD1.5, SDXL, Flux, Pony, Illustrious, Qwen, Z-Image.
- Workflows & AI Apps: Designing ComfyUI workflows and packaging them into concept-based image generation apps.
- API Infrastructure: API gateways for multi-provider key management, load balancing, error handling, multi-worker servers, and providing APIs for website and tool integration.
- Turning 'Vibe Code' Apps into Products: Backend development, user management, credit systems, and private server deployment.
- Desktop Software for AI Music & Video: Stem separation, mastering, hook finding, and beat-sync video editing.
- Virtual Characters & AI Content: Images, music, and video.
Mission
Bringing AI from the lab to real users: user-friendly tools, stable APIs, fair pricing, and transparent knowledge sharing for both the Vietnamese and international communities.
Journey
- ~4 years SharePoint developer, enterprise solutions on Microsoft Cloud
- 2023 Self-trained models published on Civitai, Tensor.art, SeaArt, Mage.space, Hugging Face
- Next AI apps built from ComfyUI workflows, 150+ virtual characters on Fizzz
- Now Backends, API gateways, AI music & video desktop software – all in one place at SDG