ChatGPT 5.4: All-new 'powerful' OpenAI update for Excel users; Availability, usage in daily life and more

ChatGPT 5.4: OpenAI has launched ChatGPT for Excel in beta, a specialized add-in powered by the new GPT-5.4 Thinking model designed specifically for financial workflows. OpenAI introduced deep data integrations with trusted providers like FactSet, S&P Global, and LSEG, enabling finance professionals to pull real-time market data into ChatGPT to automate research, due diligence, and valuation tasks.