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"path": "/t/gpt-5-5-ignores-custom-gpt-and-project-instructions-at-the-start-of-new-chats/1384550#post_1",
"publishedAt": "2026-06-24T05:27:58.000Z",
"site": "https://community.openai.com",
"textContent": "GPT-5.5 consistently fails to follow instructions when used in Custom GPTs and Projects.\n\nThis happens at the very beginning of every new conversation, not randomly. I already checked that the instructions are not contradictory.\n\nExpected behavior:\nGPT-5.5 should follow Custom GPT instructions and Project custom instructions from the first response.\n\nActual behavior:\nThe first response already ignores or deviates from those instructions.\n\nAffected areas:\n\n * Custom GPTs\n * Projects\n * GPT-5.5\n * New conversations\n\n\n\nPlease investigate whether GPT-5.5 is correctly loading and applying Custom GPT / Project instructions when a new chat starts.",
"title": "GPT-5.5 ignores Custom GPT and Project instructions at the start of new chats"
}