{
  "$type": "site.standard.document",
  "bskyPostRef": {
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    "uri": "at://did:plc:lk3jfj3zq4k4wxnk474axylu/app.bsky.feed.post/3mj3p4ggcnnw2"
  },
  "path": "/t/custom-app-mcp-not-working-with-gpt-5-4-pro-only-with-regular-gpt-5-4/1378661#post_2",
  "publishedAt": "2026-04-09T20:54:12.000Z",
  "site": "https://community.openai.com",
  "tags": [
    "GPT-5.3 and GPT-5.4 in ChatGPT",
    "@Tristan_Morris"
  ],
  "textContent": "Hey @Tristan_Morris! Yeah, I get the mix-up  This is what’s happening at the moment: Apps, Memory, Canvas, and image generation aren’t available on the 5.4 PRO version, which is why you’re seeing the difference compared to Instant.\n\nYou can also review this helpful article for more clarification: GPT-5.3 and GPT-5.4 in ChatGPT\n\n-Sunny",
  "title": "Custom App (MCP) not working with GPT 5.4 pro, only with regular GPT 5.4"
}