Primitive Labs

Primitive Labs is building the behavioral intelligence layer for AI, modeling human behavior so companies can predict how people will respond to software and agents before they launch.

speedrun SR007

Website speedrun 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

ForMotivShared: behavioral intelligence, predict, userPlug and PlayUnited StatesStartup →AI

EluShared: intelligence layer, dev tools & devops, ai agentsspeedrun SR007San FranciscoStartup →AI

Loops AIShared: intelligence layer, ai agents, systemspeedrun SR006San FranciscoStartup →AI

InterhumanShared: intelligence layerAntler 2024DenmarkStartup →AI

GamebeastShared: intelligence layer, agent, analyticsspeedrun SR002SeattleStartup →

Companies closest to Primitive Labs
Company	Category	Status	Program
ForMotivShared: behavioral intelligence, predict, userPlug and Play Not statedAI, Data	AI, Data	Not stated	Plug and Play
EluShared: intelligence layer, dev tools & devops, ai agentsspeedrun SR007Not statedAI, Devtools	AI, Devtools	Not stated	speedrunSR007
Loops AIShared: intelligence layer, ai agents, systemspeedrun SR006Not statedAI	AI	Not stated	speedrunSR006
InterhumanShared: intelligence layerAntler 2024Not statedAI	AI	Not stated	Antler2024
GamebeastShared: intelligence layer, agent, analyticsspeedrun SR002Not statedAI	AI	Not stated	speedrunSR002

Adjacent

OtherHavilo.aiShared: intelligence layerAlchemist Class 40PleasantonStartup →Other

BelidorShared: intelligence layerEF 2024ParisStartup →OtherIndustrial DynamicsShared: intelligence layer, systemAlchemist Class 40RenoStartup →AI

Kanu AIShared: dev tools & devops, ai agents, behindspeedrun SR005SeattleStartup →AI

Human BehaviorShared: human behavior, user, understandYC X25San FranciscoStartup →

Companies next to Primitive Labs
Company	Category	Status	Program
Havilo.aiShared: intelligence layerAlchemist Class 40Not statedOther	Other	Not stated	AlchemistClass 40
BelidorShared: intelligence layerEF 2024Not statedOther	Other	Not stated	EF2024
Industrial DynamicsShared: intelligence layer, systemAlchemist Class 40Not statedOther	Other	Not stated	AlchemistClass 40
Kanu AIShared: dev tools & devops, ai agents, behindspeedrun SR005Not statedAI, Devtools	AI, Devtools	Not stated	speedrunSR005
Human BehaviorShared: human behavior, user, understandYC X25ActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCX25

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Abliteration.aiUnrestricted LLMs for cybersecurity, agent testing, and defense, $7M ARR and grew 8x last month.speedrun SR007Palo AltoStartup →AI

AgentCatSession replay and observability for AI agents across MCP, Claude Connectors, and ChatGPT Apps.speedrun SR007New York CityStartup →AI

AliaAgents that coordinate teams towards company goalsspeedrun SR007San FranciscoStartup →

Company	Category	Status
BlueprintHardware, as fast as thought. Turning plain language into physical machines.Not statedAI, Devtools	AI, Devtools	Not stated
Cube ComputerPowerful, one-click cloud dev boxes for running agents.Not statedAI, Devtools	AI, Devtools	Not stated
ZoahThe next evolution in software development.Not statedAI, Devtools	AI, Devtools	Not stated
Abliteration.aiUnrestricted LLMs for cybersecurity, agent testing, and defense, $7M ARR and grew 8x last month.Not statedAI, Data, Devtools	AI, Data, Devtools	Not stated
AgentCatSession replay and observability for AI agents across MCP, Claude Connectors, and ChatGPT Apps.Not statedAI, Devtools	AI, Devtools	Not stated
AliaAgents that coordinate teams towards company goalsNot statedAI	AI	Not stated

Programs

Programs Primitive Labs went through
Program	Cohort	Source
a16z speedrun	SR007	speedrun Page

About Primitive Labs

Primitive Labs is building AI systems for behavioral intelligence. Our agent helps product, growth, and engineering teams understand how users experience digital products. We model the cognitive and behavioral dynamics behind user journeys, including perception, trust, hesitation, confusion, decision making, and abandonment. Today, teams mostly learn from analytics after users have already encountered the product. Primitive Labs brings behavioral understanding into the development process earlier, helping teams identify product risk, improve user journeys, and build systems that make sense to the people using them.

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

Tags: Dev Tools & DevOps, AI Agents

Changes seen

One-linerOct 5, 2026

Rewrote its one-liner; it read "Primitive Labs builds AI systems for behavioral intelligence."

Source ↗

Primitive Labs: questions

Which accelerators did Primitive Labs go through?

Primitive Labs is listed by a16z speedrun (SR007).

Where is Primitive Labs based?

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