{
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  "path": "/t/does-gpt-5-4-not-support-stop-sequences-with-the-chat-completions-api/1378338#post_3",
  "publishedAt": "2026-04-01T23:30:37.000Z",
  "site": "https://community.openai.com",
  "textContent": "I’m aware, which is why I don’t understand why it doesn’t work for the 5.x models? It works perfectly fine for the old 4o model, but not for 5.4 (getting the “400 Unsupported parameter: ‘stop’ is not supported with this model”",
  "title": "Does gpt 5.4 not support \"stop\" sequences with the chat.completions api?"
}