Battle of the Models

Compare specific LLM models, context windows, and capabilities.

Solar Pro

Upstage

Intelligence Score 77/100

Model Popularity 0 votes

Context Window 512K Context

Pricing Model Commercial / Paid

View Provider Analysis →

SiliconFlow

Intelligence Score 65/100

Context Window 262K Context

Pricing Model Free / Open

Model Popularity 0 votes

View Provider Analysis →

FINAL VERDICT

With an intelligence score of 77/100 vs 65/100, Solar Pro outperforms Qwen3.5 4B by 12 points.

HEAD-TO-HEAD

Feature	Solar Pro	Qwen3.5 4B
Context Window	512K Context	262K Context
Architecture	Transformer	Transformer (Open Weight)
Est. MMLU Score	~70-74%	~60-64%
Release Date	2024	2024
Pricing Model	Paid / Commercial	Free Tier
Rate Limit (RPM)	Per-second limits by usage tier (see upstage.ai/pricing)	Fixed limits for free models — exact figures require login, verify on cloud.siliconflow.cn/models
Daily Limit	Credit-based	Not fully published — verify on docs.siliconflow.cn
Capabilities	Reasoning	No specific data
Performance Tier	B-Tier (Strong)	C-Tier (Good)
Speed Estimate	Medium	Medium
Primary Use Case	General Purpose	General Purpose
Model Size	Undisclosed	4B
Limitations	Credits expire after 3 months Focus on document processing Smaller context window (32k)	Free model list not published without logging in — verify exact models/limits in your dashboard before relying on this provider Requires identity verification, not just email signup Reportedly unavailable in EU/UK/Switzerland
Key Strengths	Solar Architecture: Depth-Up-Scaling Specialized in OCR and Document Parse Translation capabilities (KO/EN/JA)	OpenAI-compatible endpoint Mix of always-free and pay-per-token models Some models free ($0) after identity verification