Disabled because it is incredibly slow. This was the highest-performing GPT-5.4 variant from OpenAI for complex reasoning and demanding professional tasks.
Added Mar 5, 2026
Context Window
922.0K
Max Output
128.0K
Input Price (Auto)
$30.00/1M
Output Price (Auto)
$180.00/1M
Cache Read (Auto)
$3.00/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Reasoning
CritPt
Research-level physics reasoning
30.0%
Last updated Mar 11, 2026, 12:00 AM
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