Products·OpenAI·Nov 2023

22. OpenAI DevDay 2023: GPT-4 Turbo, Custom GPTs, Assistants API

OpenAI becomes a platform company

Product Announcement

Summary

OpenAI's first developer conference introduced GPT-4 Turbo (128K context, cheaper), Custom GPTs (no-code chatbot builder), and the Assistants API (stateful agents with tools) — positioning OpenAI as a platform, not just a model provider.

Connections

Influenced by

18. GPT-4 Technical Report

Mar 2023

Influences

23. OpenAI Board Crisis

Nov 2023

31. Introducing Operator

Jan 2025