TAU2
Measured May 29, 2026Source
Score
0.49
Models9 0 
OpenAI
GPT-5.5 Instant (May 2026)
OpenAIOpenAIUnited States
OpenAI is a leading AI research and deployment company that develops advanced AI models. Its GPT-5.5 Instant model is the current default for ChatGPT, offering improved capabilities in coding, reasoning, and personalization with reduced hallucinations. The company provides these models through API services for various applications.
Input / 1M tokens
$5.00Output / 1M tokens
$30.00Supported plans
0Benchmark history
Evaluations
Terminalbench Hard
Measured May 29, 2026Source
Score
0.42
Lcr
Measured May 29, 2026Source
Score
0.56
Ifbench
Measured May 29, 2026Source
Score
0.72
Scicode
Measured May 29, 2026Source
Score
0.5
Hle
Measured May 29, 2026Source
Score
0.2
Gpqa
Measured May 29, 2026Source
Score
0.85
Artificial Analysis Coding Index
Measured May 29, 2026Source
Score
45.1
Artificial Analysis Intelligence Index
Measured May 29, 2026Source
Score
41.8
Plan availability
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