▶ 7:11 · $OPENAI · $ANTHROPIC · Anthropic grouped with OpenAI as frontier rational intelligence providers

episode briefing

The Best AI Companies Have Unique Data Acquisition Strategies | Simile Co-founder & CEO

2026-08-01 · 7 company · 17 thematic

sentiment

5 bull0 bear2 neu

speakers

Jun Song Park is the founder and CEO of Simile, a company building a foundation model of human behavior for large-scale simulation. Formerly a Stanford researcher leading work on AI agents and simulation (Smallville), he co-founded Simile with Michael Bernstein (ImageNet co-author), Percy Liang (coined 'foundation model'), and Liane (go-to-market).

quote

“If you look at large language model companies today, fundamentally the task they have at hand is to create super rational intelligent machines that are good at coding, that are good at natural sciences and mathematics. Similarly doesn't re…”

—jun song park

episode shorts · 2

This AI Can Predict the Future

The Company Simulating Human Behaviour

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$OPENAIneutral· mediumjun song park

OpenAI focused on super-rational intelligence, not human behavior simulation

Park differentiates Simile from OpenAI by noting OpenAI optimizes for super-rational coding, math, and science capabilities, whereas Simile explicitly models human biases, mistake…

$ANTHROPICneutral· mediumjun song park

Anthropic grouped with OpenAI as frontier rational intelligence providers

Park lumps Anthropic with OpenAI as companies building super-rational frontier models, contrasting both with Simile's focus on human-fidelity simulation.

$SIMILEbullish· high· posjun song park

Simile CEO: Defensible data strategy powers human behavior foundation model

Jun Song Park argues AI companies must own a unique, defensible data strategy; Simile combines observational data, RCTs, and A/B testing to build causal models of human behavior t…

$INDEX-VENTURESbullish· highjun song park

Index Ventures pre-empts Simile Series B after Shardul calls traction unprecedented

Shardul at Index, having led the prior round, pre-empted the new $200M round after declaring he had never seen this speed of market pull paired with technical progress in his trac…

$GREENOAKSbullish· highjun song park

Greenoaks leads $200M Simile round after deep market preparation

Greenoaks' New Enterprise team had independently researched the simulation market and all players, enabling them to move instantly when Park signaled a round, validating the categ…

$SIMILEbullish· high· posjun song park

Simile targets $100M simulation sessions for enterprise and government

Park envisions single simulation sessions costing $10-20M to run but delivering $100M+ value by preventing catastrophic decisions, creating a new high-end market for causal simula…

$SIMILEbullish· high· posjun song park

Simile positions simulation as GPU of intelligence complementing LLM CPU

Park frames frontier LLMs as the 'CPU of intelligence' for rational tasks, while Simile's human behavior foundation model acts as the 'GPU' — massively parallel simulation of dive…

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▶ 7:11 · $OPENAI · $ANTHROPIC · Anthropic grouped with OpenAI as frontier rational intelligence providers

episode briefing

20VC

The Best AI Companies Have Unique Data Acquisition Strategies | Simile Co-founder & CEO

2026-08-01 · 7 company · 17 thematic

sentiment

5 bull0 bear2 neu

speakers

jun song park

quote

“If you look at large language model companies today, fundamentally the task they have at hand is to create super rational intelligent machines that are good at coding, that are good at natural sciences and mathematics. Similarly doesn't re…”

—jun song park

episode shorts · 2

This AI Can Predict the Future

The Company Simulating Human Behaviour

now playing · $OPENAI · $ANTHROPIC

$OPENAIneutral· mediumjun song park

OpenAI focused on super-rational intelligence, not human behavior simulation

Park differentiates Simile from OpenAI by noting OpenAI optimizes for super-rational coding, math, and science capabilities, whereas Simile explicitly models human biases, mistake…

$ANTHROPICneutral· mediumjun song park

Anthropic grouped with OpenAI as frontier rational intelligence providers

Park lumps Anthropic with OpenAI as companies building super-rational frontier models, contrasting both with Simile's focus on human-fidelity simulation.

$SIMILEbullish· high· posjun song park

Simile CEO: Defensible data strategy powers human behavior foundation model

Jun Song Park argues AI companies must own a unique, defensible data strategy; Simile combines observational data, RCTs, and A/B testing to build causal models of human behavior t…

$INDEX-VENTURESbullish· highjun song park

Index Ventures pre-empts Simile Series B after Shardul calls traction unprecedented

Shardul at Index, having led the prior round, pre-empted the new $200M round after declaring he had never seen this speed of market pull paired with technical progress in his trac…

$GREENOAKSbullish· highjun song park

Greenoaks leads $200M Simile round after deep market preparation

Greenoaks' New Enterprise team had independently researched the simulation market and all players, enabling them to move instantly when Park signaled a round, validating the categ…

$SIMILEbullish· high· posjun song park

Simile targets $100M simulation sessions for enterprise and government

Park envisions single simulation sessions costing $10-20M to run but delivering $100M+ value by preventing catastrophic decisions, creating a new high-end market for causal simula…

$SIMILEbullish· high· posjun song park

Simile positions simulation as GPU of intelligence complementing LLM CPU

Park frames frontier LLMs as the 'CPU of intelligence' for rational tasks, while Simile's human behavior foundation model acts as the 'GPU' — massively parallel simulation of dive…