Jason Cui (@JasonSCui) header
Jason Cui (@JasonSCui) profile picture

Partner @a16z investing in infrastructure & AI

San Francisco, CA
Joined August 2010
Just hit one year on the best infra team and they got Starter Bakery pastries to celebrate. Time flies when you’re having fun!!
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The team in question :)
The best deals get done as a team. And even if things don’t work out the way you intend, you learn as a team. This is such an important and understated part of our team culture that makes it special. And it also just makes everything more fun!
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Great company and convos yesterday. Thanks everyone for coming!
We’ll be co-hosting two events this coming Wednesday in Seoul for ICML - a coffee/pastry mixer and luncheon! Hope to see you there. 🇰🇷 Space is limited and pending approval. Links in reply 👇
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AI has transformed how video is created. We think the next wave is about understanding it. Over the past few years, we've seen remarkable advances in video generation, editing, avatars, and creative tooling. An increasingly important problem is teaching machines to search, analyze, reason over, and extract insight from video - across massive libraries and live streams alike. We're calling this video intelligence, and we're actively looking to back founders building here. We're most excited about companies pushing on the core capabilities: - Video-native models - multimodal embeddings, temporal reasoning, and retrieval built specifically for video rather than adapted from image or text - Real-time and large-scale pipelines - infrastructure for processing, indexing, and querying video at the speed and scale enterprises actually need - Agentic and reasoning layers - systems that don't just retrieve clips but answer questions, surface anomalies, and take action on what they see The models and infrastructure to make this real are appearing to be crossing a capability threshold right now. Multimodal foundation models are maturing, storage costs have collapsed, and enterprises are sitting on years of unstructured video with no way to use it. That infrastructure unlocks a wide range of applications including media and sports workflows, security and physical operations, enterprise knowledge management, advertising analytics, robotics, and consumer products, where video has historically been dark data. If you're building in video intelligence at the model layer, the platform layer, or in a vertical application, we'd love to talk!
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Muji pens are special, love them as my daily driver. Mine is 0.38mm though, also with a cap :)
Come say hi next time @zachdive For those asking about the device in my hand: it is a Muji Gel Ink pen in Black. 0.3mm. For $3.40, it is the best pen money can buy.
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Quiver is truly leading the way in AI-generated design. SVGs encode hierarchy, grouping, and spatial relationships and Quiver produces production ready SVG outputs You can also watch the live drawings at app.quiver.ai/
Introducing @QuiverAI, a new AI lab and product company focused on frontier vector design. We’ve raised an $8.3M seed round led by @a16z, with support from amazing angels and investors. Our first model, Arrow-1.0, generates SVGs from images and text. It’s available now in public beta at app.quiver.ai
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Replying to @RichardSSutton
@RichardSSutton on AI entering “the era of experience” and sharing more bitter lessons!
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We're still in the early days of seeing how AI will impact the entire modern data stack, from performant vector databases to AI agents and applications that have access to the right data context and semantic layers. Next year will be exciting!
We asked a16z's investors for their takes on the biggest problems builders will tackle in 2026. Here's part 1 of Big Ideas 2026: a16z.news/p/big-ideas-2026-p…
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3/ A new category of search companies has emerged. Amazing teams like @ExaAILabs @p0 @tavilyai @firecrawl @Linkup_platform @olostep @ValyuOfficial @JinaAI_ @brave @serpapi @perplexity_ai @youdotcom are building powerful agentic search platforms. And @ChatGPTapp @claudeai @grok are integrating web search into their products!
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Last night. NYC infra/AI founders + @a16z infra team + LOS TACOS No. 1 = 🔥🔥🔥 NYC infra is thriving!
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