OpenAI Launches GPT-5.4 with Native Computer Use and 1M Token Context Window

OpenAI released GPT-5.4 on March 5, 2026, its most capable model for professional and agentic work, featuring native computer-use capabilities and a 1M-token API context window. The release arrives in three tiers — standard, Thinking, and Pro — with pricing set at $2.50/1M input and $15/1M output for the base model, and $30/$180 for the Pro variant. GPT-5.4 claims individual claims are 33% less likely to be false and full responses are 18% less likely to contain errors compared to GPT-5.2, alongside a new ChatGPT integration for Microsoft Excel and Google Sheets.

Key Takeaways

• GPT-5.4 API priced at $2.50/1M input tokens and $15/1M output tokens; GPT-5.4 Pro at $30/1M input and $180/1M output — higher than GPT-5.2 Pro
• First OpenAI model with native computer-use mode: can issue keyboard and mouse inputs from periodic desktop screenshots; context window up to 1M tokens via API
• OpenAI claims GPT-5.4 is 33% less likely to make false individual claims and 18% less likely to produce responses with any errors, vs. GPT-5.2

Original source: Ars Technica