OpenAI
gpt-5.5
proprietaryMultimodal
Benchmark Average (0–100)
78.3%
Average of non-null benchmark scores across all evaluated tasks.
BENCHMARK SCORES
GPQA93.6%
Graduate-Level Google-Proof Q&A. PhD-level multiple-choice questions in chemistry, biology, and physics. Scored by accuracy.
BrowseComp84.4%
BrowseComp tests web browsing comprehension, measuring ability to find and synthesize information from websites.
HLE52.2%
Humanity's Last Exam (HLE) is a multi-modal benchmark testing frontier knowledge across mathematics, humanities, and natural sciences with 2,500 expert-level questions.
MMMU-Pro83.2%
MMMU-Pro is a more challenging version of MMMU with harder multimodal understanding tasks.
OTHER BENCHMARKS
ToolAthalon
55.6%
ARC-AGI v2
85.0%
MCP Atlas
75.3%
FrontierMath
35.4%
MODEL INFO
Organization
OpenAI
Context Window
1,050,000
Release Date
2026-04-23
Knowledge Cutoff
2025-12-01
Parameters
—
License
proprietary
Input Price ($/M)
$5.0000
Output Price ($/M)
$30.0000
METADATA
Announcement Date
2026-04-23
Organization Country
US
Canonical ID
—