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OpenAI

GPT-5.5

Released 2026-04-23 · Context 1050K · Data snapshot 2026-10-22

Overall score

63.8

Ranked #14
Benchmark coverage
95.5%
21 third-party benchmarks
Context window
1050K
tokens
Input price
$5.00
Cache read $0.50
Output price
$30.00
per million tokens
OpenRouter usage
#105
58.9B tokens/day

Prices converted at snapshot-day rate (USD/CNY 6.6761)

Dimension performance

Reasoning68.5
Human preference68.1
Knowledge66.6
Coding62.6
Office58.6
Above averageBelow averageAnchored at 50 (reference models’ average); every 15 points ≈ one standard deviation

Benchmark details

Coding6 items
LiveBench 2.0 · Coding85.1
Terminal-Bench84.7
AA Coding Index74.9
LiveBench 2.0 · Browser48
LiveBench 2.0 · Long Agentic44.6
AA Agentic Index36.4
Reasoning3 items
LiveBench 2.0 · Reasoning89.7
FrontierMath (Tiers 1-3)xhigh85.3
AA Intelligence Index38.4
Office9 items
LiveBench 2.0 · Data Analysis81.6
LiveBench 2.0 · Design70.3
LiveBench 2.0 · Research61.6
AA Economics47.8
AA Strategy & Ops45.2
AA Legal44.7
AA Finance & Accounting41.5
AA Healthcare & Medical40.1
AA Engineering39.9
Knowledge2 items
GPQA Diamondlow90.7
SimpleQA Verifiedxhigh63
Human preference1 items
LMArena Human Blind Vote1481.4746

Multiple reasoning tiers of the same benchmark take the best value; raw scores have different scales and are not comparable across benchmarks.

Score trend

2026-10-202026-10-22
View daily data
2026-10-2263.8
2026-10-2163.7
2026-10-2063.7
Scores and prices come from third-party public data (Artificial Analysis / LMArena / OpenRouter). 50 is the reference models’ average; every 15 points ≈ one standard deviation. Prices are converted at snapshot-day rates and provided for reference only. Return to LLM Leaderboard.