OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does
OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does
- Read at Decrypt
- Tue, 05 May 2026 18:29:40 +0000
OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does