OpenAI launches GPT-5.5 on ChatGPT and Codex
OpenAI releases GPT-5.5 with improved coding, research, and workflow capabilities, rolling out to select ChatGPT and Codex users as a notable capability update to their flagship model series.
Excerpt
OpenAI introduces GPT-5.5 with improved coding, research, and workflow capabilities, available to select ChatGPT and Codex users.
Read at source: https://www.testingcatalog.com/openai-launches-gpt-5-5-on-chatgpt-and-codex/