OpenAI Introduces GPT‑5.5 Instant — New Default ChatGPT with Enhanced Accuracy and Context Control

Friends, I want to share an AI update: OpenAI released GPT‑5.5 Instant — the new default ChatGPT.

In brief:
- Reduces hallucinations in high‑stakes domains (law, medicine, finance) while preserving low latency.
- Coding and knowledge work improvements; AIME: 81.2 vs 65.4, MMMU‑Pro: 76.0 vs 69.2.
- Context control: search can reference past chats, files and Gmail; web access for Plus/Pro is available, mobile and extension access coming soon.
- For developers: API is now chat‑latest; GPT‑5.3 will remain an option for paid users for three more months.

Why it matters: better accuracy and transparent sourcing make AI more viable for business and mission‑critical tasks.

How do you plan to use this update in your projects?
#AI #ChatGPT #OpenAI #tech