GPT-5.4 Just Dropped: 1 Million Token Context, Autonomous Workflows, and What Small Businesses Should Know

OpenAI released GPT-5.4 on March 5 with a 1 million token context window and the ability to autonomously execute multi-step workflows. Here is what changed, what it costs, and how it compares to Claude and Gemini.

OpenAI Released GPT-5.4 on March 5. Here Is What Actually Changed. GPT-5.4 is the latest model from OpenAI. It launched on March 5, 2026 with three variants Standard, Thinking, and Pro and a headline feature: a 1 million token context window that lets it process roughly 750,000 words in a single con