YC Spring 2026 (P26) company

Linzumi

Team chat to command all your company's coding agents

About Linzumi

Linzumi is the chat your engineering team uses to direct dozens of AI coding agents. Kick off work, review it, ship it. All from chat. See every agent's work. Unblock the agents that need you from your laptop, your phone, the coffee line. Your teammates see it too. Every decision your team makes compiles into a source of truth - what to build, why it changed, how your agents should act. That same source generates new work and verifies completed work. Deliberative alignment, repurposed from aligning LLMs to aligning companies.

Public traction evidence

Each signal links to the public source used for attribution.

  1. X

    Garry Tan post about Linzumi

    Linzumi is Codex but actually multiplayer. It’s magical for teams. Also Sean Grove was on the team at OpenAI that greatly reduced sycophancy in ChatGPT before he left to start this YC startup!

  2. LinkedIn

    Garry Tan post about Linzumi

    Garry Tan highlighted Linzumi with a native LinkedIn post. Garry Tan post about Linzumi

  3. X

    Few people have thought harder about how humans and coding agents should work together than @sgrove. Linzumi gives your team one chat to or…

    Few people have thought harder about how humans and coding agents should work together than @sgrove. Linzumi gives your team one chat to orchestrate all your company's coding agents.

  4. LinkedIn

    So happy to launch. I truly want to to make everyone into the CEO of their own 10,000 agent company - any idea they have, and question they want to answer, and fun project they want to try, they… | Sean Grove | 16 comments

    I truly want to to make everyone into the CEO of their own 10,000 agent company - any idea they have, and question they want to answer, and fun project they want to try, they… | Sean Grove | 16 comments URL Source:...

  5. X

    Very kind of @greybaker to say! I do spend a lot of time thinking about what the role of a human is as agents become more capable, trustworthy, faster, and scaled out. The @sanity_io folks were kind enough to let me come and share my thoughts on what that looks like last year Show more Quote Grey Baker @greybaker · Jun 23 Few people have thought harder about how humans and coding agents should work together than @sgrove. Linzumi gives your team one chat to orchestrate all your company's coding agents. x.com/ycombinator/st…

    Very kind of @greybaker to say! I do spend a lot of time thinking about what the role of a human is as agents become more capable, trustworthy, faster, and scaled out. The @sanity_io folks were kind enough to let me come and share my thoughts on what that looks like last year...

  6. X

    Hello world! Quote Y Combinator @ycombinator · Jun 23 Bring your whole team and dozens of AI coding agents into the same chat threads, then let @linzumi_ai keep the fleet coordinated and unblocked. And for a limited time, try state of the art open-weights intelligence free: GLM 5.2 at high speed, via their @wafer_ai partnership. → 0:07 / 1:15

    Hello world! Quote Y Combinator @ycombinator · Jun 23 Bring your whole team and dozens of AI coding agents into the same chat threads, then let @linzumi_ai keep the fleet coordinated and unblocked. And for a limited time, try state of the art open-weights intelligence free: GLM...

  7. X

    from one of the original eggheads! Quote John Lindquist @johnlindquist · Jun 23 If @sgrove built it, you know it's good: x.com/ycombinator/st…

    from one of the original eggheads! Quote John Lindquist @johnlindquist · Jun 23 If @sgrove built it, you know it's good: x.com/ycombinator/st…

  8. X

    Check out @sgrove on the show with our friends at @thursdai_pod sharing a bit about Linzumi and our free GLM 5.2 tokens for new users this week, powered by @wafer_ai ! Quote ThursdAI - weekly AI news podcast @thursdai_pod · Jun 25 ThursdAI - June 25 - GLM 5.2 total victory, Sakana FUGU, OpenAI Jalapeno chips & more AI news https:// x.com/i/broadcasts/1 qKDzzQDnvNJV … ThursdAI - weekly AI news podcast · 263 views 0:08 / 2:12:07

    Check out @sgrove on the show with our friends at @thursdai_pod sharing a bit about Linzumi and our free GLM 5.2 tokens for new users this week, powered by @wafer_ai ! Quote ThursdAI - weekly AI news podcast @thursdai_pod · Jun 25 ThursdAI - June 25 - GLM 5.2 total victory,...