# Dennis Schöneberg

> AI engineer, AI production engineer, consultant, author and artist working at the intersection of generative AI, creative advertising and AI/CGI hybrid production. Maker of Scumble, a free desktop editor for AI inpainting.

The portfolio: https://www.denrakeiw.com/ · this summary as a page: https://www.denrakeiw.com/geo

## Profile

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.

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.

- Name: Dennis Schöneberg (also known as DenRakEiw)
- Roles: AI Engineer, AI Production Engineer, Consultant, Author, Artist
- Location: Köln, Germany / Nong Khai, Thailand — remote, working worldwide

## Experience

- AI Production Engineer, Grabarz & Partner · Part-time (Hamburg, Germany · Remote), since Jul 2024: Embedding generative AI into live advertising production at an Omnicom Group agency — ComfyUI pipelines, model optimization, AI/CGI hybrid workflows.
- Freelance AI Production Engineer, Self-employed (Remote), since Feb 2023: Advising AI startups, building the ComfyUI workflows that power their backends — and teaching as a lecturer at Lighthouse Academy.

## Awards and recognition

Gold Tower — New York Festivals LTX Competition 2026: Artificial Emotions — Stiftung Deutsche Depressionshilfe. 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.

- Gold Tower — New York Festivals LTX Competition: Artificial Emotions — Stiftung Deutsche Depressionshilfe, with Grabarz & Partner (2026)
- ComfyUI Workflow Contest Winner: OpenArt.ai (2024)
- #1 Vehicle Creators Leaderboard: Civitai — legendary placement (2024)
- #3 Tool Creators Leaderboard: Civitai — legendary placement (2024)
- Lunar Love Contest — Valentine's Day Staff Pick: Civitai — Resource Winner, Romantic Mice Style SDXL (Feb 26, 2024)
- Bronze — ADC Germany: Hyundai Santa Fe Open For More — Freelance with Jung von Matt (2024)
- Bronze — German Digital Award: Hyundai Santa Fe Open For More — Freelance with Jung von Matt (2024)
- Honoree — Webby Awards: Hyundai Santa Fe Open For More — Freelance with Jung von Matt (2024)
- FILE Festival — QUBIT AI Exhibition: FIESP Cultural Center, São Paulo, Brazil (Jul 3 – Aug 25, 2024)

## Clients and partners

- Grabarz & Partner: Agency · part-time, Omnicom Group
- Jung von Matt: Agency — Hyundai / E.ON
- BlackForestLabs: CPP
- DaydaStudio: Studio — FOX TV
- ossa.ai: AI Startup
- gleem.ai: AI Startup
- rendermind.ai: AI Startup
- kartel.ai: Creative AI Platform — Curated Artist Roster
- Lighthouseacademy.ai: AI Education
- The Customization Group: Print Company
- Mintano: Print Company
- Ethel Vaughn: Indie Fashion Label

## Selected client work

The case studies on the portfolio (campaigns, AI/CGI hybrid productions, films and generative tools for brands and agencies) are behind an access code. To see them, ask Dennis Schöneberg on LinkedIn or by email.

- [LinkedIn](https://www.linkedin.com/in/dennis-schoeneberg/)
- [dennis.schoeneberg@me.com](mailto:dennis.schoeneberg@me.com)

## Publications and exhibitions

- [Stable Diffusion — Ein umfassender Leitfaden über Bildgenerierung und Modelltraining (Book · Amazon KDP): A comprehensive guide to image generation and model training with Stable Diffusion — from prompting to training your own models.](https://www.amazon.de/Diffusion-umfassender-Leitfaden-Bildgenerierung-Modelltraining/dp/B0CL3FJVRC)
- [FILE Festival 2024 — QUBIT AI, Synthetic Art · Interator – Sound Synthetics, FIESP Cultural Center, São Paulo, Brazil, July 3 – August 25, 2024: Four AI music videos — created with SD 1.5 and Deforum — exhibited in the QUBIT AI show at FILE, the Electronic Language International Festival.](https://file.org.br/highlight/file-2024-qubit-ai/)
- [Exhibited film: Unit4, Bodydub (Bangkok Impact Remix) (1:00)](https://www.youtube.com/watch?v=D-mIGH4abzI)
- [Exhibited film: Ricardo Villalobos, N-DRA (13:37)](https://www.youtube.com/watch?v=G-G3B-DMl3Y)
- [Exhibited film: Russian Roulette, Believe (5:59)](https://www.youtube.com/watch?v=sZ_UP07q7W8)
- [Exhibited film: Michael Mayer & Reinhard Voigt, Transparenza (6:28)](https://www.youtube.com/watch?v=ErTULs0FqFk)

## Open source and community

Open-source tools for generative AI, most of them for ComfyUI, on GitHub: https://github.com/DenRakEiw

- [scumble: Free, open-source desktop editor for AI inpainting: layers, masks, PSD export, MCP (JavaScript)](https://github.com/DenRakEiw/scumble)
- [Latent_Nodes: Latent editing nodes for ComfyUI (Python)](https://github.com/DenRakEiw/Latent_Nodes)
- [DenRakEiw_Nodes: ComfyUI node pack (Python)](https://github.com/DenRakEiw/DenRakEiw_Nodes)
- [ComfyUI-InpaintCanvas: Inpaint Canvas: the layer editor as a ComfyUI node (Python)](https://github.com/DenRakEiw/ComfyUI-InpaintCanvas)
- [WAN_NN_Latent_Upscale: Neural network upscaler for Wan (Python)](https://github.com/DenRakEiw/WAN_NN_Latent_Upscale)
- [flux_3_api: ComfyUI nodes for the BFL Flux 3 video API, with an LLM prompt generator (Python)](https://github.com/DenRakEiw/flux_3_api)
- [Skills: Agent skills for AI video direction — Flux 3 Director (Markdown)](https://github.com/DenRakEiw/Skills)
- [Civitai: 3.9k Followers on Civitai](https://civitai.com/user/denrakeiw)
- [Civitai: 324.3k Model downloads](https://civitai.com/user/denrakeiw)
- [Civitai: 746.2k Image generations](https://civitai.com/user/denrakeiw)
- [Civitai: #1 Vehicle Creators leaderboard (legendary)](https://civitai.com/user/denrakeiw)
- [Civitai: #3 Tool Creators leaderboard (legendary)](https://civitai.com/user/denrakeiw)

## Scumble

A desktop editor for AI inpainting. Open an image, select an area, write a prompt, generate. The result lands as a layer over the selection and stays editable: colour-matched to its surroundings, masked, erased in parts, regenerated, stacked with filter and text layers, exported with all layers to PSD or OpenRaster.

- [Scumble: what it is, the facts, questions and answers (latest version 0.1.52)](https://www.denrakeiw.com/scumble)
- [Scumble manual](https://www.denrakeiw.com/scumble/manual)
- [Microsoft Store](https://apps.microsoft.com/detail/9NDBTNNMXF2R)
- [Source code on GitHub (GPL-3.0)](https://github.com/DenRakEiw/scumble)

## Contact and profiles

- [LinkedIn: in/dennis-schoeneberg](https://www.linkedin.com/in/dennis-schoeneberg/)
- [Civitai: user/denrakeiw](https://civitai.com/user/denrakeiw)
- [GitHub: github.com/DenRakEiw](https://github.com/DenRakEiw)
- [Hugging Face: DenRakEiw](https://huggingface.co/DenRakEiw)
- [itch.io: denrakeiw.itch.io](https://denrakeiw.itch.io/)
- [Email: dennis.schoeneberg@me.com](mailto:dennis.schoeneberg@me.com)

## Machine-readable

- [This summary as Markdown](https://www.denrakeiw.com/geo.md)
- [llms.txt: the site for AI assistants, with Scumble](https://www.denrakeiw.com/llms.txt)
- [The Scumble manual as Markdown](https://www.denrakeiw.com/scumble/manual.md)