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Jay Hack

@mathemagic1an • 69,939 subscribers

Head of AI @clickup. Tweets about AI, computing and their impacts on society. Previously founder @codegen / ML @palantir / CS @stanford. Not a pseudonym.

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Google announces Bard, their ChatGPT competitor. 👏👏👏

Google announces Bard, their ChatGPT competitor. 👏👏👏

696,328 views

"HumanRF: High-Fidelity Neural Radiance Fields for Humans in Motion" Constructs temporal NeRF of humans from multi-view video Impressive quality. Easy to see applications in gaming - better avatar creation etc.

"HumanRF: High-Fidelity Neural Radiance Fields for Humans in Motion" Constructs temporal NeRF of humans from multi-view video Impressive quality. Easy to see applications in gaming - better avatar creation etc.

53,934 views

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Parrots are clearly intelligent enough to understand video UIs They also apparently prefer watching videos of other parrots 🤔 This implies an opportunity for a "parrot streaming" platform. Looking for a team who is as excited about this opportunity as Iam
1:14
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Parrots are clearly intelligent enough to understand video UIs They also apparently prefer watching videos of other parrots 🤔 This implies an opportunity for a "parrot streaming" platform. Looking for a team who is as excited about this opportunity as Iam

Jay Hack

3,587,683 views • 2 years ago

✷ Collaborate with agents in Linear ✷ Excited to partner with Linear to launch our Codegen integration! ⚡️ > "Hey Codegen, can you solve this ticket? > Close any duplicates btw." I haven't started a task from scratch in days. Absolutely wild.
0:35
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✷ Collaborate with agents in Linear ✷ Excited to partner with Linear to launch our Codegen integration! ⚡️ > "Hey Codegen, can you solve this ticket? > Close any duplicates btw." I haven't started a task from scratch in days. Absolutely wild.

Jay Hack

308,912 views • 1 year ago

🤔 What comes after Copilot? My take: a conversation with your codebase! Introducing Tensai, your repo-level code assistant ❔ Ask complex questions ✅ Automatically generate PRs for complex tasks More👇
1:47
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🤔 What comes after Copilot? My take: a conversation with your codebase! Introducing Tensai, your repo-level code assistant ❔ Ask complex questions ✅ Automatically generate PRs for complex tasks More👇

Jay Hack

500,253 views • 3 years ago

Excited to share what I've been building 🚀 Introducing Codegen ⚡ Agent-driven software development for enterprise codebases ⚡ We've raised $16mm from Thrive Capital and others to bring this to the world - 👇 More below
1:10
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Excited to share what I've been building 🚀 Introducing Codegen ⚡ Agent-driven software development for enterprise codebases ⚡ We've raised $16mm from Thrive Capital and others to bring this to the world - 👇 More below

Jay Hack

368,675 views • 2 years ago

⚡️ Huge update now live! ⚡️ Codegen can now execute arbitrary code 💻 💻 💻 Watch it build => execute a HN scraper, then slack me a PR below. Powered by Modal sandboxes. Absolutely 🔥 . No "invite codes", this is fully GA. More below 👇
0:40
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⚡️ Huge update now live! ⚡️ Codegen can now execute arbitrary code 💻 💻 💻 Watch it build => execute a HN scraper, then slack me a PR below. Powered by Modal sandboxes. Absolutely 🔥 . No "invite codes", this is fully GA. More below 👇

Jay Hack

79,627 views • 1 year ago

Multi-agent flows in Linear are so powerful. You can take on 5-10x more ambitious tasks. I just had it build out our marketing site in 20 minutes. I will likely make minor tweaks in Cursor and ship. This was unfathomable a year ago
1:19
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Multi-agent flows in Linear are so powerful. You can take on 5-10x more ambitious tasks. I just had it build out our marketing site in 20 minutes. I will likely make minor tweaks in Cursor and ship. This was unfathomable a year ago

Jay Hack

52,061 views • 1 year ago

🔊 Excited to announce: Codegen is now GA!! 🎉 2 years ago, we set out to build an agentic developer. With Claude 3.7, it's now possible like never before - and it's absolutely killer. Build with Codegen across Slack, Github and Linear. It's transformed how we work. 👇
0:54
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🔊 Excited to announce: Codegen is now GA!! 🎉 2 years ago, we set out to build an agentic developer. With Claude 3.7, it's now possible like never before - and it's absolutely killer. Build with Codegen across Slack, Github and Linear. It's transformed how we work. 👇

Jay Hack

57,050 views • 1 year ago

Mafs - "React components for interactive math" Feels like butter interacting with these components. The library is clearly made with ♥️
0:24
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Mafs - "React components for interactive math" Feels like butter interacting with these components. The library is clearly made with ♥️

Jay Hack

122,213 views • 3 years ago

Excited to share our progress 🔥 Introducing Codegen: the IDE for Refactors. Codegen allows you to programmatically analyze and manipulate your codebase. ✅ Safely transform code at scale 🔍 Visualize complex code structures ⚡ Purpose-built for AI-assisted development 1/
0:52
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Excited to share our progress 🔥 Introducing Codegen: the IDE for Refactors. Codegen allows you to programmatically analyze and manipulate your codebase. ✅ Safely transform code at scale 🔍 Visualize complex code structures ⚡ Purpose-built for AI-assisted development 1/

Jay Hack

69,856 views • 1 year ago

A 10x workflow for technical PMs & EMs: Linear inbox 🤝 code agents (Codegen ) The "inbox" is a natural queueing interface for reviewing agent outputs. Here's how to use the inbox to multi-task and effectively manage teams of agents 👇
2:41
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A 10x workflow for technical PMs & EMs: Linear inbox 🤝 code agents (Codegen ) The "inbox" is a natural queueing interface for reviewing agent outputs. Here's how to use the inbox to multi-task and effectively manage teams of agents 👇

Jay Hack

46,159 views • 1 year ago

What happens when you give a frontier agent access to a full company's history of docs, messages, tasks and more? As I'm onboarding to ClickUp, this feels like an absolute cheat code. "Cursor for your entire job." Full history of the company's thinking, decision making and operations are natively accessible w/ first-party tools and data access. No exaggeration this has reduced the amount of overhead to get ramped up (# of messages sent) by >60%. At Codegen we built an agent that straddles multiple applications - Slack, Linear, Notion, etc. - with many obvious limitations. Agents cannot search Slack historical conversations, for example, nor can you index Slack data. Any question concerning a historical decision is just out of reach. There are clear constraints of fragmentation preventing otherwise extremely capable models from performing productive tasks. Seems the biggest bottleneck to agent productivity in early 2026 is not capabilities or knowledge, it's the politics and incentives around SAAS fragmentation. Very bullish for all-in-one horizontal SAAS and what that unlocks
0:42
mathemagic1an's profile picture

What happens when you give a frontier agent access to a full company's history of docs, messages, tasks and more? As I'm onboarding to ClickUp, this feels like an absolute cheat code. "Cursor for your entire job." Full history of the company's thinking, decision making and operations are natively accessible w/ first-party tools and data access. No exaggeration this has reduced the amount of overhead to get ramped up (# of messages sent) by >60%. At Codegen we built an agent that straddles multiple applications - Slack, Linear, Notion, etc. - with many obvious limitations. Agents cannot search Slack historical conversations, for example, nor can you index Slack data. Any question concerning a historical decision is just out of reach. There are clear constraints of fragmentation preventing otherwise extremely capable models from performing productive tasks. Seems the biggest bottleneck to agent productivity in early 2026 is not capabilities or knowledge, it's the politics and incentives around SAAS fragmentation. Very bullish for all-in-one horizontal SAAS and what that unlocks

Jay Hack

17,226 views • 4 months ago

One of the top use cases for autonomous code agents that has been "solved" by the latest wave of capabilities (Claude 3.7): Comment Codegen on any PR with a modification request ✅ In ~1 year will feel crazy that we never had this before. Similar to better autocomplete.
0:26
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One of the top use cases for autonomous code agents that has been "solved" by the latest wave of capabilities (Claude 3.7): Comment Codegen on any PR with a modification request ✅ In ~1 year will feel crazy that we never had this before. Similar to better autocomplete.

Jay Hack

32,952 views • 1 year ago

🚨 Introducing: Codegen 2.0! 🚨 From idea to feature in minutes 🔥 Implement any code change on your existing repositories, regardless of size. Iterate with frontier agents in GitHub, Matt Slack, Linear, and more. No CC required - get started at
1:48
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🚨 Introducing: Codegen 2.0! 🚨 From idea to feature in minutes 🔥 Implement any code change on your existing repositories, regardless of size. Iterate with frontier agents in GitHub, Matt Slack, Linear, and more. No CC required - get started at

Jay Hack

31,846 views • 1 year ago

Introducing: Zoom with code agents! 🔥 Dev conversations happen in VTC. So why shouldn't agents hop in? Major unlock 🔓 for: 🎨 design critiques 🚨 incident management etc. Watch Codegen participate in a design critique then the ship the changes (!) below. Here's how 👇
2:07
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Introducing: Zoom with code agents! 🔥 Dev conversations happen in VTC. So why shouldn't agents hop in? Major unlock 🔓 for: 🎨 design critiques 🚨 incident management etc. Watch Codegen participate in a design critique then the ship the changes (!) below. Here's how 👇

Jay Hack

12,834 views • 1 year ago

This is truly one of the best illustrations of a product I’ve seen in a landing page, AI or otherwise
0:44
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This is truly one of the best illustrations of a product I’ve seen in a landing page, AI or otherwise

Jay Hack

19,657 views • 3 years ago

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