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Party

YC S24

San Francisco, US · Founded 2024 · 8 employees · 8 known investors

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Maitai provides software that corrects AI model outputs in real-time and automatically retrains models based on their errors, enabling enterprise customers to deploy more reliable AI applications that improve over time.

Also known as Maitai Inc · Maitai

AI & Machine LearningDeveloper ToolsEnterprise SoftwareArtificial IntelligenceProductivityCollaborationAIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S24)

Party was founded in 2024 by Christian DalSanto.

CDChristian DalSanto
Christian DalSantoFounder & CEOChristian DalSanto is founder and CEO of Maitai. He previously co-founded Yew, led AI engineering at Presto (an S10 company), and managed the Big Bets team at Earnin, with experience bringing AI applications from experimental stages to production systems at scale.
IH
Ian HoegenCTO2024–2026

Investors · 8

Capitalize VCreportedChicago · $100K – $200K

How we know: Y Combinator's founder network · Not right? Tell us

Metsu Capitalreported

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Olive Tree CapitalreportedBoston

How we know: Y Combinator's founder network · Not right? Tell us

PioneerreportedToronto, Ontario

How we know: Y Combinator's founder network · open dataset · 5k.vc investor directory · Not right? Tell us

Singularity Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

SN Alternative Investments LimitedreportedSingapore

How we know: Y Combinator's founder network · Not right? Tell us

Transpose Platform ManagementreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Related companies · 5

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PatchworkPatchwork offers an AI-powered alternative to Slack that uses personalized feeds to organize team communications including updates, design and engineering discussions, and announcements for individual team members.
RoutineRoutine builds an AI-powered work platform that integrates and centralizes data from third-party services like GitHub, Salesforce, Slack, and Dropbox into a unified workspace for project tracking and team collaboration. The platform uses a graph-based approach to connect fragmented information across tools, serving teams and individuals who want a consolidated view of their work without constant app-switching.
OzoneOzone provides a cloud-based video editor that allows multiple users to collaborate on projects simultaneously. The platform serves video creators and production teams looking for an alternative to traditional single-user desktop editing software.
MuddyMuddy is a multiplayer browser that organizes apps, files, and conversations into shared workspaces for teams. It uses AI to categorize tabs and render content based on priority, enabling collaboration and communication across web applications without leaving the browser.

Companies working in the same space as Party.

Legal entities · 1

corporate structure
Maitai Inc

Frequently asked questions

What does Party do?
Maitai provides software that corrects AI model outputs in real-time and automatically retrains models based on their errors, enabling enterprise customers to deploy more reliable AI applications that improve over time.
Who founded Party?
Party was founded by Christian DalSanto in 2024.
Who are Party's investors?
Party's investors include Y Combinator, Capitalize VC, Metsu Capital, Olive Tree Capital, Pioneer, Singularity Ventures, SN Alternative Investments Limited, Transpose Platform Management.
Where is Party headquartered?
Party is headquartered in San Francisco, US.