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Gemini 3.1 Pro vs Solar Open 100B

Gemini 3.1 Pro (Google DeepMind) and Solar Open 100B (Upstage) compared on benchmarks, pricing, context window, and use-case rankings.

AttributeGemini 3.1 ProGoogle DeepMind · 3 in the newsSolar Open 100BUpstage
Scores
Intelligence (ECI)155
Coding654
Math74
Reasoning & Knowledge948
Agentic & Tools8317
Specifications
DeveloperGoogle DeepMindUpstage
FamilyGemini
ReleasedFeb 19, 2026Dec 31, 2025
Parameters102B
AvailabilityAPI accessAPI access
Context window
Price — $/M input
Price — $/M output
Inputs
Outputs
Benchmarks
AIME 2024/202596%
APEX34%
ARC-AGI98%
ARC-AGI-277%
FrontierMath37%
FrontierMath Tier 417%
GPQA Diamond94%66%
GSO (code optimization)23%
Humanity's Last Exam46%9%
METR task horizon6.4 h
SimpleBench80%
SimpleQA Verified77%
SWE-bench Verified76%
Terminal-Bench80%
WebDev Arena1461
WeirdML72%
SciCode27%
τ²-bench48%

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.

Frequently asked questions

Which is better for coding, Gemini 3.1 Pro or Solar Open 100B?

Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Gemini 3.1 Pro ranks higher — 65th vs 4th percentile among the models tracked on Model Beat.

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