Prompt Engineering Projects in Berlin

Prompt Engineering Projects in BerlinPrompt Engineering Projects in Berlin

Cover image for AI Agents with LangGraph

AI Agents with LangGraph

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Cover image for Character-Consistent AI Video Ads at Scale

Character-Consistent AI Video Ads at Scale

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Cover image for Every December I sit with the same question: “What actually ...

Every December I sit with the same question: “What actually changed in my life this year?” This time, instead of doing it alone, I asked ChatGPT to act as a facilitator — and the clarity that came out of it surprised me. I turned the process into a kit so you can try it too:a thoughtful prompt + a Miro template to organise your reflection. ✨ Your Year Personal Reflection Kit If you need a gentle moment to make sense of your year, let me know and I’ll send it your way.

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Cover image for KRUNCH – Product Launch Visuals
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KRUNCH – Product Launch Visuals A product visualization concept created for KRUNCH Pretzel Crunch. Designed to support social media and advertising campaigns through bold colors, snack-focused storytelling, and campaign-ready product imagery.

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Cover image for Guardrail Service is a production-grade

Guardrail Service is a production-grade LLM input validation system built to detect prompt injection and jailbreak attacks before they reach a language model. It uses a two-tier pipeline — a sub-millisecond rule engine powered by Aho-Corasick pattern matching, followed by a quantized DeBERTa transformer exported to ONNX for semantic attack detection at ~20ms. The service runs as an internal HTTP API built with FastAPI, containerized with Docker, and monitored via Prometheus and Grafana. It includes an adversarial test suite of 100+ prompts achieving 95%+ detection accuracy with under 5% false positives, and a live dashboard showing real-time validation, pipeline flowchart, and benchmark results.

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Cover image for GPT Image 2.0 → Mechanical

GPT Image 2.0 → Mechanical Collectible Toy Prompt Generate a premium wind-up mechanical collectible toy inspired by [Character] designed in the style of a cute Japanese capsule toy collectible. Depicted in their most iconic pose, gesture, stance, or action from their original universe, instantly recognizable to fans. Oversized rounded head, stylized proportions, simplified facial features, compact body, smooth vinyl-plastic construction, adorable yet faithful interpretation of the character. Signature hairstyle, outfit, weapons, accessories, powers, and visual motifs carefully adapted into toy form. Authentic wind-up toy mechanism, playful mechanical engineering details, highly collectible gashapon aesthetic, smooth sculpted surfaces, glossy painted finish, vibrant colors matching the character's signature palette. Dynamic pose conveying the character's personality and role, premium blind-box collectible quality, Japanese toy-store aesthetic, product photography, centered composition, soft diffused studio lighting, subtle shadows, ultra-detailed craftsmanship, photorealistic 3D render, masterpiece. Aspect Ratio 1:1

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Cover image for Portfolio (https://contra.com/portfolio)

Portfolio (https://contra.com/portfolio)

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Cover image for Rosée de Luxe – Product

Rosée de Luxe – Product Launch Campaign A visual concept for a fictional luxury fragrance brand. Created as a paid social campaign focused on premium aesthetics, romantic storytelling, and product-focused advertising visuals.

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Cover image for GPT Image 2.0 → Products

GPT Image 2.0 → Products inspired by Capsule Corp. Prompt Generate a futuristic [Brand Product] designed by a fictional advanced tech megacorporation, inspired by Capsule Corporation aesthetics, sleek rounded industrial design, glossy white shell with vibrant blue and orange accents, integrated holographic interfaces, capsule technology motifs, premium materials, soft glowing lights, advanced technology seamlessly integrated into everyday life, ultra-detailed, cinematic product photography, realistic PBR materials, studio lighting, sharp focus, centered composition. Display the product on a clean solid background. At the bottom center of the image, display the official logo above the text "[Brand Product] — Inspired by Capsule Corp." The logo must be accurate, clean, and proportionally sized. Premium advertising layout, minimal distractions, perfectly centered composition, high-end futuristic product showcase, 1:1 aspect ratio.

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Cover image for Time to Feel- Timber and John Campaign

Time to Feel- Timber and John Campaign

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Cover image for Rosée de Luxe – Product

Rosée de Luxe – Product Launch Campaign A visual concept for a fictional luxury fragrance brand. Created as a paid social campaign focused on premium aesthetics, romantic storytelling, and product-focused advertising visuals.

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Cover image for GPT Image 2.0 → Chinese

GPT Image 2.0 → Chinese Dough Figurine Prompt Generate a highly detailed traditional Chinese dough figurine (Mianren) inspired by [Character], handcrafted from colorful sculpted dough, authentic Chinese folk-art craftsmanship, vibrant hand-shaped details, expressive facial features, iconic costume and accessories reinterpreted in traditional Chinese style, smooth painted surface, ornamental patterns, dynamic pose, intricate miniature sculpture, cultural festival craftsmanship, exquisite artisan quality, collectible folk-art figure, museum-quality display piece, rich colors, elegant decorative base, ultra-detailed textures, soft studio lighting, clean background, photorealistic, masterpiece, 3D render Aspect Ratio 1:1

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Cover image for ZESTA – Product Launch Campaign
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ZESTA – Product Launch Campaign A visual concept for a fictional beverage brand. Created as a paid social campaign focused on acurate label consistency, summer vibes, and product-focused advertising visuals.

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Cover image for GPT Image 2.0 → Labubu

GPT Image 2.0 → Labubu Toys Prompt Generate an image of a premium designer toy in the style of Labubu, inspired by [Character], adorable mischievous expression, signature wide grin with sharp little teeth, oversized head, large expressive eyes, fluffy textured fur, stylized character proportions, iconic outfit and accessories reimagined in cute collectible toy form, highly detailed vinyl art toy, playful pose, designer toy aesthetic, luxury blind-box collectible, smooth matte finish, subtle fabric and fur details, vibrant colors matching character's signature palette, product photography, centered composition, clean studio background, soft diffused lighting, ultra-detailed craftsmanship, highly collectible, Pop Mart-inspired aesthetic, photorealistic, 3D render, masterpiece. Aspect Ratio 1:1

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Cover image for ZESTA – Product Launch Campaign
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ZESTA – Product Launch Campaign A visual concept for a fictional beverage brand. Created as a paid social campaign focused on acurate label consistency, summer vibes, and product-focused advertising visuals.

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Cover image for GPT Image 2.0 → Chinese

GPT Image 2.0 → Chinese Dough Figurine Prompt Generate a highly detailed traditional Chinese dough figurine (Mianren) inspired by [Character], handcrafted from colorful sculpted dough, authentic Chinese folk-art craftsmanship, vibrant hand-shaped details, expressive facial features, iconic costume and accessories reinterpreted in traditional Chinese style, smooth painted surface, ornamental patterns, dynamic pose, intricate miniature sculpture, cultural festival craftsmanship, exquisite artisan quality, collectible folk-art figure, museum-quality display piece, rich colors, elegant decorative base, ultra-detailed textures, soft studio lighting, clean background, photorealistic, masterpiece, 3D render Aspect Ratio 1:1

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