OpenAI ships GPT-5.4 with 1M context and native computer use
OpenAI released GPT-5.4 (Thinking and Pro), adding a 1M-token context window, native computer-use tooling, and SDK updates that reshape agent workflows and cost planning. OpenAI rolled out GPT-5.4 across ChatGPT, the API, and Codex in two tiers, with Thinking for paid ChatGPT users and Pro for Pro/Enterprise, plus a 1M-token context and higher marginal costs beyond 272k tokens as reported by [VentureBeat](https://venturebeat.com/technology/openai-launches-gpt-5-4-with-native-computer-use-mode-financial-plugins-for) and detailed in [OpenAI’s announcement](https://openai.com/index/introducing-gpt-5-4/). Early coverage also notes a newer August 31, 2025 knowledge cutoff and pricing slightly above 5.2 family levels, per [Simon Willison](https://simonwillison.net/2026/Mar/5/introducing-gpt54/#atom-everything). For builders, GPT-5.4 introduces a native computer-use capability and tool search for more robust agents. The OpenAI Python SDK adds model and tool support in [v2.25.0](https://github.com/openai/openai-python/releases/tag/v2.25.0) and finalizes the GA ComputerTool and preview naming in [v2.26.0](https://github.com/openai/openai-python/releases/tag/v2.26.0), while the docs provide prompt and tool guidance under “Latest: GPT-5.4” and Tool Search in [Prompt guidance](https://developers.openai.com/api/docs/guides/prompt-guidance). Enterprise workflows get tighter spreadsheet loops via new integrations for Microsoft Excel and Google Sheets, enabling in-cell analysis and automation as covered by [VentureBeat](https://venturebeat.com/technology/openai-launches-gpt-5-4-with-native-computer-use-mode-financial-plugins-for). Expect efficiency gains (fewer tokens on some tasks) and improved agentic browsing and computer control; tune prompts and safety rails per the updated [developer guidance](https://developers.openai.com/api/docs/guides/prompt-guidance).