Yesterday, OpenAI released the latest update to its AI, GPT-5.4, across ChatGPT as GPT-5.4 Thinking, the API, and Codex. On the same day, the company launched ChatGPT for Excel in beta. Both are available now.
GPT-5.4 is the first OpenAI general-purpose model with native computer-use capability built directly into it. The model can read screenshots, move a cursor, and use a keyboard to operate a desktop environment without a separate tool layer. On OSWorld-Verified, the benchmark that tests AI capabilities, GPT-5.4 scored 75.0%. The human baseline on that same test is 72.4%. GPT-5.2 scored 47.3%.
Alongside the model, OpenAI launched ChatGPT for Excel in beta — an add-on that embeds ChatGPT directly inside a workbook. Users describe their needs in plain language, and the model builds or updates live Excel models using the workbook's existing formulas and structure. It links answers to the exact cells it references and updates, explains what it is doing as it works, and asks for permission before making any changes.
Damilare Odedina
On OpenAI's internal investment banking benchmark — building a three-statement financial model with proper formatting and citations — GPT-5.4 Thinking scored 87.3%, up from 68.4% with GPT-5.2 and 43.7% with the original GPT-5.
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