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OpenAI Hermes agent builder rumors for ChatGPT integration

April 6, 2026TestingCatalog News, Wes Roth

TestingCatalog News and Wes Roth report OpenAI is working on an upgraded internal agent builder named Hermes, likely integrated into ChatGPT, alongside mentions of a Pluto Model.

OpenAI seems to be working on an upgraded agent builder, internally named "Hermes," which will likely be integrated directly into ChatGPT.
And "Pluto Model" 👀
OpenAI is developing an upgrade to their internal agent builder under the codename "Hermes," along with mentions of a mysterious "Pluto Model," intended for direct integration into ChatGPT.
OpenAI seems to be working on an upgraded agent builder, internally named "Hermes,"
which will likely be integrated directly into ChatGPT.
TestingCatalog News
Wes Roth
chatgptagentsopenaichatgpt

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