On AI Lounge since Oct 2026
Niklas Freitag
Member #2,506FounderL2Founder & CTO, Veritan
Building in AI-native operations for pharmaceutical research. Based in Basel, Switzerland.
How karma works. Everyone starts with 5. You get +1 each time another member upvotes one of your posts or comments (your own upvotes don't count), and lose it if they take the upvote back. Post what you're building, answer questions and help other members to earn more.
Achievements
Plugged In ×3Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 3 sources (GitHub, LinkedIn, X or a website) in Settings
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ShipperProjects on your profile.How: Added 1 project to their profile
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Pinned projects
Full fine-tuning and QAT of NVFP4-quantized LLMs on DGX Spark / GB10: NVFP4 in, NVFP4 out, no BF16 original needed
dgx-sparkfine-tuninggb10llmnvfp4
Code snippets and examples of ML from the Machine Learning with Python course
LoRA fine-tune and serve NVFP4 models on one DGX Spark (GB10, 128 GB UMA): text backbones via generic-family onboarding, plus VLMs (vision tower, or LLM+tower jointly via --train-target both) validated end-to-end on Pixtral and Nemotron-Omni. Fused Triton dequant; runtime-LoRA and merge serving.
aifp4loramixture-of-expertsmoe
About
Niklas Freitag is Founder and CTO of Veritan, a company building AI-native operations for pharmaceutical research from Basel, Switzerland. Niklas holds a Master of Engineering degree and works as an AI engineer. Open-source work on GitHub includes tools for fine-tuning and serving NVFP4-quantized language models on a single DGX Spark.
Categories
Stack
Experience
Founder @ Veritan | Master of Engineering - MEng | Al Engineer
Founder · Veritan Tech
Freelance AI Engineer · Self Employed
Consultant · MedTag
NV
Owner and Creative Director · Niklas Von Mehren
Clinical Trial Administrator · PRN Healthcare
