Overview
- GPT‑5.4 Thinking is live in ChatGPT for Plus, Team and Pro users, with GPT‑5.4 Pro available to Pro and Enterprise; Microsoft has begun rolling it into Microsoft 365 Copilot and Copilot Studio, and published Foundry pricing at $2.50 per million input and $15 per million output tokens (Pro: $30 and $180).
- OpenAI’s new model adds native computer‑use so agents can operate virtual desktops with mouse and keyboard, coordinate tools and files, and execute multi‑step workflows.
- The release targets professional workloads with a context window up to 1 million tokens and greater token efficiency than GPT‑5.2.
- Company benchmarks show gains including 33% fewer false claims, 18% fewer error‑containing responses, a 75.0% score on OSWorld‑Verified for computer use, and strong spreadsheet modeling performance.
- OpenAI maintains a high cyber‑capability risk classification for GPT‑5.4 and has deployed expanded monitoring, trusted access controls, request blocking and new chain‑of‑thought monitoring evaluations.