Battle of the Models

Compare specific LLM models, context windows, and capabilities.

Qwen3.5 4B

SiliconFlow

Intelligence Score 65/100

Model Popularity 0 votes

Context Window 262K Context

Pricing Model Free / Open

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DEPRECATED

Grok (xAI)

This model is no longer active/free — kept for reference.

Intelligence Score 96/100

Context Window 2M

Pricing Model Commercial / Paid

Model Popularity 0 votes

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FINAL VERDICT

With an intelligence score of 96/100 vs 65/100, Grok 4.1 Fast outperforms Qwen3.5 4B by 31 points.

Clear Winner: Significant performance advantage for Grok 4.1 Fast.

HEAD-TO-HEAD

Feature	Qwen3.5 4B	Grok 4.1 Fast
Context Window	262K Context	2M
Architecture	Transformer (Open Weight)	Transformer
Est. MMLU Score	~60-64%	~92-95%
Release Date	2024	2024
Pricing Model	Free Tier	Paid / Commercial
Rate Limit (RPM)	Fixed limits for free models — exact figures require login, verify on cloud.siliconflow.cn/models	Varies (low for free tier)
Daily Limit	Not fully published — verify on docs.siliconflow.cn	Credit-based
Capabilities	No specific data	No specific data
Performance Tier	C-Tier (Good)	S-Tier (Elite)
Speed Estimate	Medium	Medium
Primary Use Case	General Purpose	General Purpose
Model Size	4B	Undisclosed
Limitations	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	$25/month credit cap (generous but finite) Lower rate limits on free tier Vision models have smaller context
Key Strengths	OpenAI-compatible endpoint Mix of always-free and pay-per-token models Some models free ($0) after identity verification	Monthly renewing $25 free credits OpenAI-compatible API (drop-in replacement) Real-time knowledge from X/Twitter data