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Lead DevelopmentFACT · 4/5•5 Oct '26•Via Lennys Newsletter

Jev Decision Engine, ChatGPT Sites, DevDay Recap

This newsletter episode covers John Lindquist's practical Jev use cases (8 demos), Kath Korevec's internal use of ChatGPT Sites at OpenAI, and Claire's DevDay 2026 recap. Key topics include Jev as a fast, inexpensive decision engine for routing and classification; ChatGPT Sites as infrastructure for personalized internal tools with plugin insights and MCP hosting; and new OpenAI platform primitives such as Dots, Spaces, the Decisions API with vision, and GPT-6.1 Sol. The episode highlights how fast, cheap AI models unlock temporary personal software and efficient brute-force analysis.

•Jev is a decision model for structured output (scores, classifications) built by mega.dev.
•Kath Korevec from OpenAI demonstrates ChatGPT Sites with live Slack and Notion integration.
•OpenAI DevDay 2026 announced Dots, Spaces, GPT-6.1 Sol, and the Decisions API with vision.

Entities:OpenAI

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