John Karpentar

John Karpentar

Writes about artificial intelligence and the companies building it. Covers model releases, research and the business of AI.
7 Best Vector Databases in 2026: Pinecone, Qdrant, Weaviate, Milvus, Chroma, Turbopuffer and pgvector Compared

7 Best Vector Databases in 2026: Pinecone, Qdrant, Weaviate, Milvus, Chroma, Turbopuffer and pgvector Compared

Retrieval-augmented generation lives or dies on the database underneath it — and the seven products below split into three very different bets: fully managed convenience, open-source control, and storage-layer economics. Every serious RAG pipeline, recommendation engine, or semantic search feature needs somewhere to store embeddings and query them
The Leading Edge Belongs to AI Now

The Leading Edge Belongs to AI Now

How TSMC's A16 node ended fifteen years of smartphones going first, and what that reordering costs everyone else.
John Karpentar Chips 7 min read
LG Rents Nvidia's Robot Brain

LG Rents Nvidia's Robot Brain

How a humanoid partnership reveals that the scarce asset in physical AI is neither the model nor the machine, but the factory floor.
John Karpentar Deep Tech 8 min read
OpenAI Taps the Brakes on Astra

OpenAI Taps the Brakes on Astra

How a sentence OpenAI could not disprove stopped a frontier model, and why cyber was the threshold that broke first.
John Karpentar AI 8 min read
Anthropic Watermarks the Word

Anthropic Watermarks the Word

How an EU transparency rule turned the randomness inside Claude into a signature, and exported the standard worldwide.
John Karpentar AI 7 min read
Google Gives Away the Handshake

Google Gives Away the Handshake

How moving the A2A protocol to the Agentic AI Foundation trades control for the one thing enterprise buyers actually demand.
John Karpentar AI 7 min read
Muon Space's $1.5 Billion Orbit

Muon Space's $1.5 Billion Orbit

How a satellite maker backed by Google and Salesforce is turning spacecraft into a factory product — and positioning orbit as AI's next infrastructure layer.
John Karpentar AI 5 min read
OpenAI Builds a Walled Garden for Teens

OpenAI Builds a Walled Garden for Teens

How ChatGPT for Teens and automatic age prediction turn a product-safety problem into a permanent feature of how OpenAI operates.
John Karpentar AI 5 min read

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