Köln, Germany / Nong Khai, Thailand — remote, working worldwideAvailable for select projects

Creative AI · Generative Media · Production

DennisSchöneberg.

I am an

AI Engineer

I build the pipelines behind the pictures. Generative AI, ComfyUI workflows, model optimization and AI/CGI hybrid production — for agencies, platforms and artists who want work that ships, not just demos.

View work→Get in touch

↓Scroll to explore

ComfyUILoRA TrainingModel Opt.AI/CGI Hybrid

Generative AI✦

ComfyUI✦

LoRA Training✦

Model Optimization✦

AI / CGI Hybrid✦

Diffusion Models✦

AI Production✦

Generative AI✦

ComfyUI✦

LoRA Training✦

Model Optimization✦

AI / CGI Hybrid✦

Diffusion Models✦

AI Production✦

(About)

The engineer behind the image.

I work part-time as an AI Production Engineer at Grabarz & Partner — an award-winning Hamburg agency that became part of the Omnicom Group in July 2023 — bringing generative AI into real creative advertising production.

In parallel, I freelance as an AI Engineer, Consultant, Author and Artist for startups and studios worldwide: building ComfyUI pipelines, training LoRAs, optimizing models and directing AI/CGI hybrid productions.

I believe cutting-edge AI unlocks new possibilities for creative processes — my job is to turn that belief into workflows that are fast, consistent and production-grade.

AI EngineerAI Production EngineerConsultantAuthorArtist

Open-source models

Civitai — user/denrakeiw

Open model portfolio↗

3.9kFollowers on Civitai

324.3kModel downloads

746.2kImage generations

#1Vehicle Creators leaderboardlegendary

#3Tool Creators leaderboardlegendary

(Selected Work)

A selection of AI/CGI hybrid productions, generative campaigns and model work — built to ship, not just to demo.

Selected work.

012025

App · LoRA Training + ComfyUI Optimization

1 / 4

GNTM TopShot↗

GNTM TopShot

ProSiebenSat.1 / Joyn · Grabarz & Partner

Selfie in, fashion poster out in 5–10 seconds: the GNTM TopShot feature in the Joyn app turns user photos into high-gloss model shots across 8 scenarios — underwater included.

Behind the simple front end run up to ~100 chained AI process steps — cutout, perspective-aware composition, skin and lighting retouch. I trained the LoRA models and optimized the ComfyUI workflow for accuracy and speed, including custom node optimization and R&D on context models vs. IP-Adapter.

LoRA TrainingComfyUICustom NodesR&D

022024

Fashion · Generative

1 / 8

Ethel Vaughn AI Fashion↗

Ethel Vaughn AI Fashion

Ethel Vaughn × Wildstuff Collective

One photoshoot became 13 motifs, 13 models, 13 locations across 5 continents (Tokyo, New York, Paris, Rio, Cairo) — 100% garment consistency, base resolution 10k+, editorial print at 6000×8000px.

Deliverables: teaser, 5 social clips, one 45-sec music clip and a casefilm. Casefilm presented by Wildstuff Collective.

Fashion10k+Character Consistency

032023

Generative

1 / 1

E.ON Ugly Sweater↗

E.ON Ugly Sweater

Jung von Matt · Freelance

The AI Ugly Sweater Generator for E.ON's Christmas campaign — generate your own sweater, stay warmer.

GenerativeBrandCustom Workflow

FeatureSeason 14 · 2025

TV · AI Character Intros

The Masked Singer — AI Character Intros

Intro clips for the costume characters, generated with a custom ComfyUI pipeline and finished for broadcast. My role: pipeline build, keyframe upscaling, character consistency and character inpainting in the keyframes.

All episodes on YouTube ↗

ComfyUI PipelineKeyframe UpscalingCharacter ConsistencyInpainting

Feature2024–2026

Automotive · AI/CGI Hybrid

Taycan GTS

Electric GTS sedan — studio & street series.

01 / 03

Porsche — AI/CGI Hybrid Production

Series of AI/CGI hybrid productions for Porsche — generative environments fused with photoreal car CGI. Custom-trained models deliver the paint, metal and light fidelity the marque demands.

AI/CGI HybridAutomotiveLoRAComfyUI

Feature2023

Text-to-Image AI

1 / 6User-generated worlds

Hyundai Santa Fe — Open for Imagination

Global launch campaign for the all-new Santa Fe: a custom text-to-image AI let users generate their dream destination with the car in it — via web and Instagram DM ('Hey SANTA FE'). ~200,000 visits in the first month.

My role: built the ComfyUI workflow and trained the style-model LoRA.

ComfyUI WorkflowStyle LoRAText-to-ImageCampaign

(Clients & Collaborations)

Trusted by studios, labs & brands.

From global agencies to generative AI platforms — I work where creative direction meets production-grade model engineering.

01Grabarz & Partner

Agency · part-time, Omnicom Group

02Jung von Matt

Agency — Hyundai / E.ON

03BlackForestLabs

CCP

04DaydaStudio

Studio — FOX TV

05ossa.ai

AI Startup

06gleem.ai

AI Startup

07rendermind.ai

AI Startup

08Lighthouseacademy.ai

AI Education

09The Customization Group

Print Company

10Mintano

Print Company

11Ethel Vaughn

Indie Fashion Label

(Journey)

A timeline of making.

Now

AI Production Engineer

Grabarz & Partner · part-time, remote

Embedding generative AI into live advertising production at an Omnicom Group agency — ComfyUI pipelines, model optimization, AI/CGI hybrid workflows.

Ongoing

Freelance AI Engineer & Consultant

ossa.ai · gleem.ai · rendermind.ai · Lecturer @ Lighthouse Academy

Advising AI startups, building the ComfyUI workflows that power their backends — and teaching as a lecturer at Lighthouse Academy.

2024

FILE Festival — QUBIT AI Exhibition

FIESP Cultural Center, São Paulo

AI music videos (SD 1.5 + Deforum) shown at the international art exhibition, July–August 2024.

2024

OpenArt.ai Contest Winner

ComfyUI Workflow Contest

Won the OpenArt.ai ComfyUI Workflow Contest.

2024 – Now

#1 Civitai Vehicle Creators

Civitai Leaderboards

Legendary leaderboard placement: #1 Vehicle Creators, #3 Tool Creators — 3.9k followers, 324.3k downloads, 746.2k generations.

2023

Hyundai Santa Fe — AI web app

Jung von Matt · Freelance

Custom text-to-image AI model behind the 'Open for Imagination' launch — ~200k visits in month one.

(Awards & Recognition)

Marked, measured & exhibited.

2026New York Festivals Gold Tower — with Grabarz & Partner

#1Civitai Vehicle Creators leaderboard

#3Civitai Tool Creators leaderboard

Gold Tower2026

Gold Tower — New York Festivals LTX Competition 2026

Depressionshilfe — AI-powered film

Awarded the Gold Tower in the 2026 NYF LTX Competition. Entries were reviewed and debated live by the 2026 NYF Executive Jury, led by Andrea Diquez (Global CEO, GUT) — the winning work stood out for innovative storytelling, creative execution and pushing the boundaries of AI-powered creativity.