Chart of the Day
One AI chart a day. We take what moved on the LLM leaderboard, in frontier-lab launches and in the news, rebuild it from primary data, and read it for distribution.
Open-Source vs. Closed AI Models: How Big Is the Gap?
The best open-weight model would win 44% of blind votes against the best closed one. The model is becoming a commodity input.
Best AI Model vs. Most Popular AI Chatbot
Anthropic builds more top-50 models than any other lab. ChatGPT still reaches about 7 times as many Americans as Claude.
How Long Does the #1 AI Model Stay on Top?
A frontier model now holds Arena's #1 spot for about 3 weeks. A lab that keeps shipping can hold it for months.
AI Model Launch Strategy: What Labs Ship on Day One
Most new models now launch to developers first: 9 of 13 opened an API on day one. Only 2 went straight into a consumer app, and both came from labs that own one.
OpenAI Python Package Downloads: Who Grew Since August
Since PyPI's counting change, the openai package grew 14%, exactly the median of 11 AI packages. anthropic grew 25%. In a market growing this fast, keeping pace is not traction.
Voice AI Models in 2026: Launches by Modality
Audio is now a regular slot in the release calendar: 6 labs shipped voice or speech models since July. When everyone sells a voice, the value moves to where the calls happen.
Gemini Leaderboard Ranking: Google's Days at #1
Google had zero days at #1 on Arena in 2024. Since mid-2025 its models have held the top for 227 days, and Gemini 4 Argon just took it back.
OpenAI Leaderboard Ranking: 8th Among Labs on Arena
OpenAI has not had the top model on Arena for 458 days, and now ranks 8th among labs. ChatGPT kept growing anyway.
Open-Weight Models in 2026: How Many Launch Open?
Few launches since July said their weights were public, and none came from the three biggest US labs. Open weights now arrive mostly as specialist parts.
AI Model Releases in 2026: Which Labs Ship Most
50 named AI models launched in 12 weeks, about one every 1.7 days. 14 labs shipped them; none of them can count on a quiet month.