modelbenchmark.io

GPT-5.5

OpenAI · gpt-5-5

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Default frontier GPT for coding, computer use, research, and knowledge work

Specification

openai listing

Context
1.1M
Max output
128K
Released
2026-04-23
Knowledge cutoff
2025-12-01
Retires
2027-10-26
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · openai list price

Input
$5.00
Output
$30.00
Cache read
$0.50
Cache write
$5.00

Batch and priority prices

US dollars per million tokens · per listing

PriceListing$/M
Batch inputazure$2.50
Batch inputazure$2.75
Batch outputazure$15.00
Batch outputazure$16.50
Priority inputazure_ai$10.00
Priority inputazure$12.50
Priority inputazure$13.75
Priority outputazure_ai$60.00
Priority outputazure$75.00
Priority outputazure$82.50
Priority outputdatabricks$75.0001

Batch input is 50% below the interactive input price at the same listing.

Long-context price tiers

the rate above each context threshold

AbovePrice$/M
272KCache read$1.00
272KInput$10.00
272KOutput$45.00

Quality

17 benchmarks · 2 sources

Composite
89th
percentile of 344 scored models
Rank
38 / 344
±0.06 sd
Evidence
17 × 2
3 or more benchmarks, from 2 or more sources
Effort range
21.8
points between effort settings
coding46th2/3 bench
reasoning92nd4/4 bench
math92nd6/7 bench
knowledge84th1/1 bench
general86th1/1 bench

By reasoning effort

every setting placed on the same scale as the leaderboard

SettingCompositeBenchmarks behind it
xhigh94th8
low84th4
high72nd2
medium39th1

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
Mystery Game Puzzles56.0 ±5.0xhighEpoch AI2026-07-24
↳52.0 ±5.0highEpoch AI2026-07-27
↳28.0 ±4.5lowEpoch AI2026-08-28
Settings differ by 28.0 points on this benchmark.
FrontierMath-Tier-4-2025-07-0135.4 ±6.9defaultEpoch AI2026-04-23
FrontierMath-Tiers-1-3-v285.3 ±2.1xhighEpoch AI2026-06-11
FrontierMath-v151.7 ±2.9defaultEpoch AI2026-04-23
SWE-Bench verified80.6 ±1.8defaultEpoch AI2026-04-24
FrontierMath-Tier-4-v272.5 ±7.2xhighEpoch AI2026-06-11
GPQA diamond94.0 ±1.5defaultEpoch AI2026-04-24
↳90.7 ±1.8lowEpoch AI2026-05-05
Settings differ by 3.3 points on this benchmark.
SimpleQA Verified63.0 ±1.5xhighEpoch AI2026-08-27
OTIS Mock AIME 2024-2025100.0 ±0.0defaultEpoch AI2026-04-24
↳84.4 ±5.5lowEpoch AI2026-08-07
Settings differ by 15.6 points on this benchmark.
LiveBench80.8xhigh · 23 runsLiveBench2026-06-25
Chess Puzzles63.0 ±4.9xhighEpoch AI2026-10-13
↳30.0 ±4.6lowEpoch AI2026-10-13
Settings differ by 33.0 points on this benchmark.
EBR-bench34.3 ±2.0xhighEpoch AI2026-07-27
Furniture Assembly44.2 ±6.4xhighEpoch AI2026-09-10
OEIS Open Lite36.0 ±4.8mediumEpoch AI2026-08-11
FrontierMath-Erdos0.0 ±0.0xhighEpoch AI2026-08-28
MirrorCode10.0 ±6.0highEpoch AI2026-08-10
OEIS Open26.2 ±2.0mediumEpoch AI2026-08-11

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 57 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
openaivendor$5.00$30.00$0.50—1.1M128K—
unorouter · freefreefree——1.1M128K—
unorouter$0.1875$1.125——1.1M128K—
xpersona$1.50$12.00$0.15—1.1M128K—
poe$4.5455$27.2727$0.4545—400K128K—
302ai$5.00$30.00$0.50—1.1M128K—
abacus$5.00$30.00$0.50—1M128K—
ai-router$5.00$30.00$0.50—1.1M128K—
aihubmix$5.00$30.00$0.50—1.1M128K—
aihubmix · aihubmix$5.00$30.00$0.50—1.1M128K—
aimlapi$5.00$30.00$0.50—1.1M128K—
azure
$5.00
$5.50
$30.00
$33.00
$0.50
$0.55
—
1.1M
922K
128K2027-10-26
azure_ai$5.00$30.00$0.50—922K128K2027-10-26
azure-cognitive-services$5.00$30.00$0.50—1.1M128K—
bedrock_converse · global$5.00$30.00$0.50—922K128K—
cloudflare-ai-gateway$5.00$30.00——1M128K—
commandcode$5.00$30.00$0.50free400K128K—
crossmodel$5.00$30.00$0.50$5.001.1M128K—
daoxe$5.00$30.00$0.50—1.1M128K—
databricks$5.00$30.00$0.50$5.00
1.1M
922K
128K—
edenai$5.00$30.00$0.50—1.1M128K—
fastrouter$5.00$30.00$0.50—1.1M128K—
freemodel$5.00$30.00$0.50$5.001.1M128K—
frogbot$5.00$30.00$0.50—272K128K—
github_copilot · github-copilot$5.00$30.00$0.50—272K128K2026-10-19
github-copilot$5.00$30.00$0.50—1.1M128K—
gmicloud$5.00$30.00$0.50—1.1M128K—
hpc-ai$5.00$30.00$0.50—1.1M128K—
impossibl$5.00$30.00$0.50—1.1M128K—
kilo$5.00$30.00$0.50—1.1M128K—
llmgateway$5.00$30.00$0.50—1.1M128K—
llmgateway-providers$5.00$30.00$0.50—1.1M128K—
lowrouter · auto$5.00$30.00$0.50—1.1M128K—
merge-gateway$5.00$30.00$0.50—1.1M128K—
nano-gpt$5.00$30.00$0.50—1.1M128K—
nearai$5.00$30.00$0.50—1.1M128K—
neon$5.00$30.00$0.50—1.1M128K—
ofox$5.00$30.00$0.50—1.1M128K—
opencode$5.00$30.00$0.50—1.1M128K—
openrouter$5.00$30.00$0.50—1.1M128K—
opper$5.00$30.00$0.50—1.1M128K—
orcarouter$5.00$30.00$0.50—1.1M128K—
perplexity$5.00$30.00$0.50————
perplexity-agent$5.00$30.00$0.50—1.1M128K—
pioneer$5.00$30.00$0.50$5.001.1M128K—
prime$5.00$30.00——1.1M128K—
sap-ai-core$5.00$30.00$0.50—1.1M128K—
vercel$5.00$30.00$0.50—1M128K—
vivgrid$5.00$30.00$0.50—1.1M128K—
zenmux$5.00$30.00$0.50—1.1M128K—
amazon-bedrock$5.50$33.00$0.55—1M128K—
bedrock_converse · us$5.50$33.00$0.55—922K128K—
bedrock_mantle · bedrock-mantle$5.50$33.00$0.55—922K128K—
requesty$5.50$33.00$0.55—1.1M128K—
kenari$5.7143$36.00$0.5714—1.1M128K—
chatgpt · chatgpt————1.1M128K—
model-oracle-ai————1.1M128K—

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02databricksCache read$0.50
2026-09-06databricksCache read$0.50
2026-09-02frogbotCache read$0.25
2026-10-22frogbotCache read$0.50
2026-09-02ofoxCache read$0.50
2026-09-19ofoxCache read$0.40
2026-10-17ofoxCache read$0.50
2026-09-02openrouterCache read$0.50
2026-09-06openrouterCache read$0.50
2026-10-10openrouterCache read$0.50
2026-09-02databricksInput$5.00
2026-09-06databricksInput$5.00
2026-09-02frogbotInput$2.50
2026-10-22frogbotInput$5.00
2026-09-02kenariInputfree
2026-10-22kenariInput$5.7143
2026-09-02ofoxInput$5.00
2026-09-19ofoxInput$4.00
2026-10-17ofoxInput$5.00
2026-09-02openrouterInput$5.00
2026-09-06openrouterInput$5.00
2026-10-10openrouterInput$5.00
2026-09-02databricksOutput$30.00
2026-09-06databricksOutput$30.00
2026-09-02frogbotOutput$15.00
2026-10-22frogbotOutput$30.00
2026-09-02kenariOutputfree
2026-10-22kenariOutput$36.00
2026-09-02ofoxOutput$30.00
2026-09-19ofoxOutput$24.00
2026-10-17ofoxOutput$30.00
2026-09-02openrouterOutput$30.00
2026-09-06openrouterOutput$30.00
2026-10-10openrouterOutput$30.00
2026-10-13aimlapiCache read$0.65
2026-10-23aimlapiCache read$0.50
2026-10-13aimlapiInput$6.50
2026-10-23aimlapiInput$5.00
2026-10-13aimlapiOutput$39.00
2026-10-23aimlapiOutput$30.00

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