name = "GPT-5.4 nano"
description = "Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation"
family = "gpt-nano"
release_date = "2026-03-17"
last_updated = "2026-03-17"
attachment = true
reasoning = true
temperature = true
tool_call = true
structured_output = true
knowledge = "2025-08-31"
open_weights = false

[limit]
context = 400_000
input = 272_000
output = 128_000

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

[[benchmarks]]
name = "SWE-Bench Pro"
score = 52.4
metric = "resolve rate"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Terminal-Bench"
score = 46.3
metric = "accuracy"
variant = "reasoning effort xhigh"
version = "2.0"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "MCP Atlas"
score = 56.1
metric = "score"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Toolathlon"
score = 35.5
metric = "score"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "τ²-Bench Telecom"
score = 92.5
metric = "accuracy"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "GPQA Diamond"
score = 82.8
metric = "accuracy"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Humanity's Last Exam"
score = 37.7
metric = "accuracy"
variant = "with tools"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Humanity's Last Exam"
score = 24.3
metric = "accuracy"
variant = "without tools"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "OSWorld-Verified"
score = 39.0
metric = "success rate"
variant = "reasoning effort xhigh"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "MMMU Pro"
score = 69.5
metric = "accuracy"
variant = "with Python"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "MMMU Pro"
score = 66.1
metric = "accuracy"
variant = "without tools"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "OmniDocBench"
score = 0.2419
metric = "overall edit distance"
variant = "reasoning effort none"
version = "1.5"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "OpenAI MRCR"
score = 44.2
metric = "accuracy"
variant = "8-needle, 64K-128K"
version = "v2"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "OpenAI MRCR"
score = 33.1
metric = "accuracy"
variant = "8-needle, 128K-256K"
version = "v2"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Graphwalks"
score = 73.4
metric = "accuracy"
variant = "BFS, 0-128K"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"

[[benchmarks]]
name = "Graphwalks"
score = 50.8
metric = "accuracy"
variant = "parents, 0-128K"
source = "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/"
date = "2026-03-17"