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Modelreleased on 5 March 2026
27thout of 71General intelligence, ECI index 157.8 (155.9 to 160.0)
Agent tasks28th out of 5252.4% completed
Coding tasksnot measuredCursorBench
Electricity use of a tasknot estimatedmodel size unknown

Lineage

Company
OpenAI
GPT (before the Astra, Sol, Terra, Luna range) family
GPT-5.4GPT-5.4 ProGPT-5.5GPT-5.5 Prothe family
Assistants that offer it
No assistant in the ranking names it on a page we have read.
API price
not recorded

Links read on 10/11/2026 on company pages, the press as a fallback; a link given for a family applies only to its latest version.

Rank in each benchmark

  • General intelligenceEpoch AI, ECI index157.8155.9 to 160.027th out of 71
  • User preferenceLMArena, Elo score147527th out of 68
  • Agent tasksEpoch AI, APEX-Agents52.4 %42.0 to 62.828th out of 52
  • Code repairEpoch AI, DeepSWE51.8 %20th out of 26
  • Coding tasksEpoch AI, CursorBenchnot measured

Each segment of the bar is worth a tenth of the ranking; the 1st groups the best ranked. Rank among models released in 2026 and measured by the benchmark. Sources: Epoch AI, "Capabilities & benchmarking" (CC BY 4.0); LMArena, text with style control (CC BY 4.0); data as of 10 November 2026.

Effort settings

SettingElectricity use of a taskTasks completedTokens per task
DeepSWE, code repair
xhighnot estimated51.8 %71,409
Estimation methodology

The effort setting says how much the model reasons before answering: the higher it is, the more tokens it writes, and the more electricity the task needs. Tokens per task are measured by Epoch AI.

Electricity: Projet Celsius estimate. Tokens of the task × electricity ofwriting 1,000 tokens for the size of the model (AI Impact Database, IA-0011), × the data centre overhead (PUE). The scope covers computing on the servers and cooling; it does not cover chip manufacturing, training, the network or the device. CursorBench counts tokens read and written together: the range runs from "all read" to "all written". DeepSWE counts tokens written: the range starts from writing alone.

Model size unknown: electricity use is not estimated. Benchmark: a quick question to an assistant needs about 0.3 Wh.

GPT-5.4 among OpenAI's models, general intelligence

Epoch AI ECI index and its 95% interval, by release date; 14 OpenAI models released in 2026 and measured by the ECI index

MarMayJulSepNov150160170General intelligence index (ECI)GPT-5.4GPT-6 AstraGPT-6.1 TerraGPT-6.1 SolGPT-6 SolGPT-5.6 SolGPT-5.5 ProGPT-5.6 TerraGPT-5.4 Pro

Dot: the index measured, at the release dateLine: the 95% intervalGPT-5.45 names in the "Table" tab

Source: Epoch AI, "Capabilities & benchmarking", ECI index. CC BY 4.0 licence.

AI Impact, by Projet Celsius

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