GPT-5.4 Pro
READER SUMMARYThe maximum-performance GPT-5.4 tier for complex reasoning, research, and agentic work, available through ChatGPT and API.
Why this model scores 86.4
The Pro tier leads the family's reasoning evaluations and inherits computer use, tools, and long-horizon operation, while paid restricted access lowers deployment relative to Thinking.
News tied to GPT-5.4 Pro
The model score of 86.4 rates this model's risk profile. The overall Doom Index of 62.1 measures the recalibrated complete evidence corpus. These values answer different questions.
Each article's leave-one-out Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores are recalculated from their technical profile and related news, but never feed back into the overall index.
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.
- Full item contribution
- +0.12
- GPT-5.4 Pro equal share
- +0.06
Model score history
- R2Doom Score 86.4
Full-corpus evidence recalculated after run intensive-backfill-20260811-191225 under bounded-corpus-v2.
11 Aug 2026 - R1Doom Score 87.4
New exact Pro tier absent from durable context; GPT-5.4 Thinking remains unchanged at revision 1.
11 Aug 2026