FrontierThe story, in brief
GPT-5.5
OpenAI just released GPT-5.5. Here's what changed.
The KeyNews take
Why it matters
A new flagship model release from OpenAI signals the next generation of capability benchmarks and sets the competitive baseline for the entire industry. This is the headline event that moves the model wars needle.
The key facts
4 to knowGPT-5.5 official release from OpenAI
Published April 23, 2026
322 points on Hacker News with 107 comments
Official OpenAI blog announcement
Go to the source
Hacker Newsopenai.com
Publisher excerpt: Article URL: Comments URL: Points: 322 # Comments: 107