name = "GPT-5.4 Pro"
description = "More exact GPT-5.4 tier for demanding professional reasoning and agent tasks"
family = "gpt-pro"
release_date = "2026-03-05"
last_updated = "2026-03-05"
attachment = true
reasoning = true
temperature = false
tool_call = true
structured_output = false
knowledge = "2025-08-31"
open_weights = false

[limit]
context = 1_050_000
input = 922_000
output = 128_000

[modalities]
input = ["text", "image"]
output = ["text"]

[[benchmarks]]
name = "GPQA Diamond"
score = 94.4
metric = "accuracy"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "Humanity's Last Exam"
score = 42.7
metric = "accuracy"
variant = "no tools"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "Humanity's Last Exam"
score = 58.7
metric = "accuracy"
variant = "with tools"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "BrowseComp"
score = 89.3
metric = "accuracy"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "GDPval"
score = 82.0
metric = "wins or ties"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "FrontierMath"
score = 50.0
metric = "accuracy"
dataset = "Tier 1-3"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "FrontierMath"
score = 38.0
metric = "accuracy"
dataset = "Tier 4"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "ARC-AGI-1"
score = 94.5
metric = "accuracy"
variant = "Verified"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "ARC-AGI-2"
score = 83.3
metric = "accuracy"
variant = "Verified"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "FinanceAgent"
score = 61.5
metric = "accuracy"
version = "1.1"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "GeneBench"
score = 25.6
metric = "accuracy"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"