Upstage's Solar Pro 4 with reasoning enabled for harder agentic workflows, document-intensive work, coding, planning, and analysis across a 524K-token context window.
Added Aug 11, 2026
Context Window
524.3K
Max Output
131.1K
Input Price (Auto)
$0.030/1M
Output Price (Auto)
$0.12/1M
Cache Read (Auto)
$0.0060/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
41.6
Coding Index
52.7
Agentic Index
33.6
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
89.1%
Better than 94% of models compared
HLE
Humanity's Last Exam
29.2%
Better than 93% of models compared
AA-LCR
Long context reasoning evaluation
70.7%
Better than 96% of models compared
GDPval-AA
Economically valuable tasks
38.8%
CritPt
Research-level physics reasoning
5.4%
Coding
SciCode
Python programming for scientific computing
43.6%
Better than 87% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
18.9%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
24.4%
Last updated Aug 12, 2026, 5:18 PM
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