[AI]■ STORY TIMELINE
CHATGPT SWAPS DEFAULT MODEL FOR FACTUAL GPT-5.5
OpenAI is rolling out GPT-5.5 Instant as ChatGPT's new default model, reducing hallucinations by over 50 percent on high-risk topics. The update includes personalization features that show users which stored information shaped each response.
Engadget+0m
OpenAI is deploying GPT-5.5 Instant to all users starting today.
The Decoder+6m
OpenAI is swapping out ChatGPT's default model for GPT-5.5 Instant. In internal testing, the update produced 52.5 percen…