GPT-5.4 adds native computer use and long-horizon agent workflows
OpenAI released GPT-5.4 Thinking and GPT-5.4 Pro with native computer use, agentic tool calling, up to one million tokens of context, stronger search, and immediate ChatGPT, API, and Codex access.
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Why it moved the index
Native computer interaction, long-context execution, tool discovery, broad access, and improved professional capability materially advance consequential autonomy.
Assessment history
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R1
Toward 58 · confidence 85
New dated launch story absent from durable context, with one new exact Pro tier.
11 Aug 2026
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DoomBench assesses “GPT-5.4 adds native computer use and long-horizon agent workflows” as evidence moving toward doom, with magnitude 58 and confidence 85 out of 100 in the autonomy and agency category.
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The DoomBench assessment of “GPT-5.4 adds native computer use and long-horizon agent workflows” is based on reporting from OpenAI and records the editorial rationale, source quality, attribution, and revision history.
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DoomBench summarizes “GPT-5.4 adds native computer use and long-horizon agent workflows” as follows: OpenAI released GPT-5.4 Thinking and GPT-5.4 Pro with native computer use, agentic tool calling, up to one million tokens of context,...
https://www.doombench.com/news/gpt-5-4-adds-native-computer-use-and-long-horizon-agent-workflows-2026-03-05