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Custom GPTs Retire: Skills, Plugins, and MCP Explained
Episode 5606
Published 3 weeks, 1 day ago
Description
OpenAI is retiring custom GPTs on December 11, 2026, with a migration path to plugins built on Skills and MCP servers. This episode walks through the real timeline, the four documented plugin shapes, and the migration mechanics — including the parts that don't carry over at all, like custom actions. We also dig into the SKILL.md open standard that Anthropic released in December 2025 and why it spread to 79 agents across OpenAI, Google, Cursor, and Copilot faster than MCP did. Plus: the context-load objection one listener raised to ChatGPT, and why progressive disclosure is correct in theory but has a hard ceiling in practice.
Episode #391849 — open it directly at myweirdprompts.com/391849