Research that compounds
Deep insights on AI and frontier technology building what's next
Explore All Research on Substack
Etna Chats
June 25, 2026
Fable 5: Expensive Intelligence Needs Expensive Work
Frontier models may capture 80% of model revenue, while lower-cost and open-source models may process 80% of tokens.
Deep Dive
June 18, 2026
Inventing Anthropic: Two Ingredients Behind the AI Winner
The rise of Anthropic is a case study in how focus and culture can become strategy.
Etna Portfolio
June 4, 2026
Our Investment in Generalist: A Brain for Many Bodies
The Generalist team is singularly focused on unlocking robotics’ scaling laws, turning ever more real-world interaction data into increasingly capable physical intelligence.
Agentic Infra
March 27, 2026
Decode the Buzzword: Why Harness Engineering Matters Now
The Harness is the Datase
Chinese LLMs
February 27, 2026
Beyond DeepSeek: What China's Model Builders Are Seeing
The Lunar New Year releases were the opening move.
Explore All Research on Substack
Research that compounds
Deep insights on AI and frontier technology building what's next
Explore All Research on Substack
Etna Chats
June 25, 2026
Fable 5: Expensive Intelligence Needs Expensive Work
Frontier models may capture 80% of model revenue, while lower-cost and open-source models may process 80% of tokens.
Deep Dive
June 18, 2026
Inventing Anthropic: Two Ingredients Behind the AI Winner
The rise of Anthropic is a case study in how focus and culture can become strategy.
Etna Portfolio
June 4, 2026
Our Investment in Generalist: A Brain for Many Bodies
The Generalist team is singularly focused on unlocking robotics’ scaling laws, turning ever more real-world interaction data into increasingly capable physical intelligence.
Agentic Infra
March 27, 2026
Decode the Buzzword: Why Harness Engineering Matters Now
The Harness is the Datase
Chinese LLMs
February 27, 2026
Beyond DeepSeek: What China's Model Builders Are Seeing
The Lunar New Year releases were the opening move.
Explore All Research on Substack
Research that compounds
Deep insights on AI and frontier technology building what's next
Explore All Research on Substack
Etna Chats
June 25, 2026
Fable 5: Expensive Intelligence Needs Expensive Work
Frontier models may capture 80% of model revenue, while lower-cost and open-source models may process 80% of tokens.
Deep Dive
June 18, 2026
Inventing Anthropic: Two Ingredients Behind the AI Winner
The rise of Anthropic is a case study in how focus and culture can become strategy.
Etna Portfolio
June 4, 2026
Our Investment in Generalist: A Brain for Many Bodies
The Generalist team is singularly focused on unlocking robotics’ scaling laws, turning ever more real-world interaction data into increasingly capable physical intelligence.
Agentic Infra
March 27, 2026
Decode the Buzzword: Why Harness Engineering Matters Now
The Harness is the Datase
Chinese LLMs
February 27, 2026
Beyond DeepSeek: What China's Model Builders Are Seeing
The Lunar New Year releases were the opening move.
Etna Portfolio
February 3, 2026
Our Investment in Phylo: Building the Intelligence Layer for Biology
By unifying biology’s fragmented models, data, and tools, Phylo is bringing software-like iteration speed to scientific research.
Explore All Research on Substack