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Grok 4.5 vs Solar Pro 3

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Grok 4.5Solar Pro 3
AttributeGrok 4.5xAI · 2 in the newsSolar Pro 3Upstage
Scores
Intelligence (ECI)154
Coding911
Math85
Reasoning & Knowledge7014
Agentic & Tools7649
Specifications
DeveloperxAIUpstage
FamilyGrok
ReleasedJul 8, 2026Jan 27, 2026
Parameters
AvailabilityAPI access
Context window500K128K
Price — $/M input$2.00$0.15
Price — $/M output$6.00$0.60
Inputstext, image, filetext
Outputstexttext
Benchmarks
AIME 2024/202598%
APEX34%
ARC-AGI87%
ARC-AGI-253%
GPQA Diamond93%72%
Humanity's Last Exam40%10%
SciCode54%25%
SimpleBench70%
SimpleQA Verified54%
WebDev Arena1551
WeirdML46%
τ²-bench86%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.