TAU2
Measured May 29, 2026Source
Score
0.84
Models9 0 
GPT-5.5 (low)
OpenAIOpenAIUnited States
GPT-5.5 (low) is a lightweight, cost-optimized variant within the GPT-5.5 series. It is designed for high-throughput applications, emphasizing fast response times and low operational costs while retaining strong reasoning and coding capabilities.
CodingReasoningFastCheap
Input / 1M tokens
$5.00Output / 1M tokens
$30.00Output tokens/s
61.38First-token seconds
1.69sSupported plans
0Benchmark history
Evaluations
Terminalbench Hard
Measured May 29, 2026Source
Score
0.52
Lcr
Measured May 29, 2026Source
Score
0.72
Ifbench
Measured May 29, 2026Source
Score
0.64
Scicode
Measured May 29, 2026Source
Score
0.52
Hle
Measured May 29, 2026Source
Score
0.31
Gpqa
Measured May 29, 2026Source
Score
0.91
Artificial Analysis Coding Index
Measured May 29, 2026Source
Score
52.1
Artificial Analysis Intelligence Index
Measured May 29, 2026Source
Score
50.8
Plan availability
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