Notion - Rebuilt Notion AI Around Credits, Model Routing, and Long-Running Agents

Notion rebuilt its AI product around three changes at once: a smarter model router that decides which model handles each request, long-running agents that can work in the background, and a bring-your-own-AI option that lets customers plug in their own model keys. The whole thing now runs on a credit system instead of flat per-seat AI pricing.

LangChain - Published the Five-Part Architecture Behind Its Internal Company Agents

LangChain documented the architecture pattern behind the agents it built for its own marketing, sales, and engineering teams, what Harrison Chase has been calling a "company harness" on X this week. The pattern has five parts: agents live inside Slack rather than a separate app, each agent handles identity per-tool rather than one shared credential, they keep both global and per-user memory, they execute code in a sandbox, and most of them run on a schedule rather than waiting to be invoked.

OpenAI - Published Usage Data From 165 Work Activities Across Nearly 100 Countries

OpenAI released a data-driven look at how ChatGPT usage breaks down across work activities and geographies, tracking 165 distinct work activities in nearly 100 countries and how usage patterns shift over time. This is the kind of longitudinal usage data that's rare to get from a foundation model company directly, most of what we see is anecdote or isolated case study.