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  "path": "/openai-gpt-5-5-instant-chatgpt-default-model-launch-availability/",
  "publishedAt": "2026-05-06T11:15:04.000Z",
  "site": "https://gadgetbond.com",
  "tags": [
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  "textContent": "GPT-5.5 Instant replaces GPT-5.3 as the model most people hit by default in ChatGPT, with OpenAI claiming big gains in accuracy, memory and tone without slowing responses down.\n\nSource",
  "title": "GPT-5.5 Instant replaces GPT-5.3 as OpenAI’s everyday ChatGPT model"
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