GPT-5.4 nano
OpenAI's smallest GPT-5.4 API tier for cheap classification, extraction, ranking, and coding subagents.
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Why this model scores 62.5
Lower standalone capability is offset by very cheap API access and usefulness as a scalable subagent, with hosted controls limiting residual control difficulty.
News tied to GPT-5.4 nano
The model score of 62.5 rates this model's risk profile. The overall Doom Index of 67.9 measures the complete temporally weighted evidence record. These values answer different questions.
Each article's current 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 use a bounded temporal offset around their technical profile, but never feed back into the overall index.
OpenAI releases GPT-5.4 mini and nano for low-cost subagents
OpenAI released two smaller GPT-5.4 tiers with coding, tool-use, and computer-use support at substantially lower prices and broad API availability.
- Full item contribution
- +0.25
- GPT-5.4 nano equal share
- +0.12
Model score history
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R5
Doom Score 62.5
Source-backed model availability audit using the model's existing primary or authoritative catalogue evidence. Exact-version evidence chronology replayed under temporal-monthly-pressure-v4.
12 Aug 2026 -
R4
Doom Score 62.5
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R3
Doom Score 62.8
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R2
Doom Score 63.7
Full-corpus evidence recalculated after run intensive-backfill-20260811-191225 under bounded-corpus-v2.
11 Aug 2026 -
R1
Doom Score 62.5
New exact tier verified from dated primary launch.
11 Aug 2026