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14,448 startups · 29 programs

ThirdBrain Labs

Unlocking the next one billion specialized models

Websitespeedrun page

Why it ranks

How the rank works
3signal of 100 · rising 2
  • went through speedrunProgram · this site+3

A sum of public facts, not a judgement and not investment advice.

Competitors

AIReasonBlocksShared: specialized model, training, productionYC X26San FranciscoStartup →AIDelightful AIShared: training infrastructure, post training, ai infraspeedrun SR007San FranciscoStartup →AIZoa ResearchShared: specialized model, domain specific, improveYC S24New York CityStartup →AIZavoShared: expert decision, post training, unlockingYC F25LondonStartup →AIJigsawShared: post training, ai infra, turningspeedrun SR005San FranciscoStartup →
Companies closest to ThirdBrain Labs
Company
ReasonBlocksShared: specialized model, training, productionYC X26ActiveAI
Delightful AIShared: training infrastructure, post training, ai infraspeedrun SR007Not statedAI, Data
Zoa ResearchShared: specialized model, domain specific, improveYC S24ActiveAI, Data
ZavoShared: expert decision, post training, unlockingYC F25ActiveAI, Data
JigsawShared: post training, ai infra, turningspeedrun SR005Not statedAI, Data

Adjacent

AIFreesoloShared: specialized model, knowledgeYC X25San FranciscoStartup →AIUnseenShared: domain specificAntler 2023AustraliaStartup →AIZorbeShared: continuously improve, ai infra, specializedspeedrun SR007San FranciscoStartup →AIOsmosisShared: domain specific, post training, modelYC W25San FranciscoStartup →AISyzygyShared: post training, ai infra, unlockingspeedrun SR005San FranciscoStartup →
Companies next to ThirdBrain Labs
Company
FreesoloShared: specialized model, knowledgeYC X25ActiveAI, Devtools
UnseenShared: domain specificAntler 2023 +1Not statedAI
ZorbeShared: continuously improve, ai infra, specializedspeedrun SR007Not statedAI, Data
OsmosisShared: domain specific, post training, modelYC W25ActiveAI, Devtools
SyzygyShared: post training, ai infra, unlockingspeedrun SR005Not statedAI

Also from speedrun SR006 in AI

All of speedrun SR006
AIAmdahlAI Context layer for all Enterprise GTM work (ex-Databricks, Coinbase team, $4m pipeline)speedrun SR006San FranciscoStartup →AIBotaBridging AI agents and the real world: $0 --> $710K cARR in 5 weeksspeedrun SR006Mountain ViewStartup →AIModaicVerification & alignment infra for AI decisioning.speedrun SR006San FranciscoStartup →AIPluvoRedefining how finance works. The agentic operating system for financial work.speedrun SR006San FranciscoStartup →AISafeWorldMaking robots safespeedrun SR006Palo AltoStartup →AISentraThe foundational memory for Enterprise General Intelligence.speedrun SR006San FranciscoStartup →
Company
AmdahlAI Context layer for all Enterprise GTM work (ex-Databricks, Coinbase team, $4m pipeline)Not statedAI
BotaBridging AI agents and the real world: $0 --> $710K cARR in 5 weeksNot statedAI
ModaicVerification & alignment infra for AI decisioning.Not statedAI, Devtools
PluvoRedefining how finance works. The agentic operating system for financial work.Not statedAI
SafeWorldMaking robots safeNot statedAI
SentraThe foundational memory for Enterprise General Intelligence.Not statedAI

Programs

Programs ThirdBrain Labs went through
ProgramCohortSource
a16z speedrunSR006speedrun Page

About ThirdBrain Labs

We help teams own and continuously improve their domain-specific AI, turning their knowledge into scalable intelligence. Our end-to-end post-training infrastructure captures expert decisions directly and applies them on top of base models, allowing teams to steer production models continuously without error-prone workflows, heavy datasets, and massive labor.

Category
AI
Location
San Francisco, California, United States of America
Checked
13h ago

Tags: AI Infra

ThirdBrain Labs: questions

Which accelerators did ThirdBrain Labs go through?

ThirdBrain Labs is listed by a16z speedrun (SR006).

Where is ThirdBrain Labs based?

ThirdBrain Labs lists San Francisco, California, United States of America as its location on a16z speedrun's page.