OpenAI launches GPT-5.4 with built-in computer use

On March 5, 2026, OpenAI launched GPT-5.4, the first mainstream model with built-in, state-of-the-art capabilities for operating computers and software on its own.

Computer use and long context

GPT-5.4 achieved record scores on computer-use benchmarks (OSWorld, WebArena), offered a context window of 1 million tokens, and reduced token costs by approximately 47% on tool-intensive work via 'tool search'.

More reliable

According to OpenAI, factual claims from GPT-5.4 were approximately 33% less often incorrect. In ChatGPT, GPT-5.4 Thinking replaced the previous thinking variant.