MUI Router Blog

AI model updates, without the noise

Clear notes on new frontier models, API availability, and what each launch means for builders who want one stable integration.

April 24, 20267 min read

GPT-5.5 Is Here: OpenAI's New Work Model Changes What AI Can Do for You

OpenAI has released GPT-5.5 for ChatGPT and Codex, with stronger agentic coding, computer use, knowledge work, and research capabilities. Here is what changed and how to prepare for API access.

GPT-5.5OpenAIAI models

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