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Cardboard

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Agentic video editor

Winter 2026Founded 20252 peopleSan Francisco, CA, USA
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AI insightcan contain mistakes
AI Video EditingSaaSGrowth/marketing teams, content creatorsHigh competition
Moat
Reasoning over video content with multimodal LLMs is novel; browser-based NLE with WebGPU removes infrastructure friction.
Key risk
Adobe, DaVinci Resolve, and traditional editors have deep moats; requires sustained GPU/ML investment.
Why now
Multimodal LLMs can now reason over footage; WebGPU/WebCodecs enable browser-native professional editing.
Competitors
Adobe Premiere, DaVinci Resolve, CapCut, Opus Clip

About

Cardboard is an agentic video editor for growth/marketing teams and serious creators who need to ship videos consistently. Instead of agencies, long timelines, and infinite review cycles, teams give cardboard a footage + a goal (“3 variants”, “30s hook”, “testimonials”) to get a strong first cut in minutes on which they can iterate quickly. Multimodal LLMs can finally reason over footage, and WebGPU/WebCodecs make a real NLE possible in the browser. For the first time, an “AI director” inside a professional editor can be a reality. We have to build two hard things at once: a high-performance editor in the browser and an agentic editor that is reliable for production use cases. Most startups do one; incumbents can’t rebuild their stack without breaking everything. Saksham and Ishan met in school and have known each other since 15 years. Saksham was Co-founder/CTO of Iterate AI (backed by EF) and posts content on social media; Ishan has spent ~5yr building memory-heavy, performance-critical browser apps at HackerRank (S11) and deeply understands browsers. He has built Hotspoter (5M+ downloads) when he was 14. Together, we’re unusually suited to build the editor core others avoid. Video is becoming the default distribution channel, and the team that iterates fastest compounds attention. Cardboard becomes the default workspace for video production, the way Canva/Figma became the workspace for design - because it’s collaborative, fast, and does the tedious parts for you.

Founders · 2

Saksham Aggarwal
Saksham AggarwalFounder
Coinbase

Saksham Aggarwal is the founder of Cardboard (W26). He studied CS at BITS Pilani and previously built AI products at Iterate AI (EF-backed startup). He has published at ACL and has spoken internationally on AI evaluations. He was the first engineer at PYOR (backed by Coinbase and Castle Island) and worked in growth at Sequoia-backed Flint.

Ishan Sharma
Ishan SharmaFounder

Ishan Sharma is the founder of Cardboard (W26). He is a full-stack engineer with deep experience in high-performance web systems, creative tooling, and applied AI. Previously, he spent ~4.5 years at HackerRank (S11), where he led multiple 0→1 products used by millions. He started programming in 6th grade and built a Windows app in school that crossed 5.7M+ downloads and was featured on CNET and Softonic

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