TAU2
Measured May 29, 2026Source
Score
0.93
Models9 0 
GPT-5.5 (high)
OpenAIOpenAIUnited States
GPT-5.5 (high) is a high-performance variant of OpenAI's next-generation GPT-5 model family. It is designed to deliver advanced reasoning, coding, and multimodal capabilities, likely representing a top-tier configuration within its series.
CodingReasoningMultimodal
Input / 1M tokens
$5.00Output / 1M tokens
$30.00Output tokens/s
64.43First-token seconds
28.28sSupported plans
0Benchmark history
Evaluations
Terminalbench Hard
Measured May 29, 2026Source
Score
0.6
Lcr
Measured May 29, 2026Source
Score
0.73
Ifbench
Measured May 29, 2026Source
Score
0.72
Scicode
Measured May 29, 2026Source
Score
0.56
Hle
Measured May 29, 2026Source
Score
0.43
Gpqa
Measured May 29, 2026Source
Score
0.93
Artificial Analysis Coding Index
Measured May 29, 2026Source
Score
58.5
Artificial Analysis Intelligence Index
Measured May 29, 2026Source
Score
58.9
Plan availability
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