Battle of the Models

Compare specific LLM models, context windows, and capabilities.

Grok 4

S-TIER

Grok (xAI)

Intelligence Score 98/100

Model Popularity 0 votes

Context Window 256K

Pricing Model Commercial / Paid

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A-TIER

Z.AI (GLM)

Intelligence Score 83/100

Context Window 128K

Pricing Model Free / Open

Model Popularity 0 votes

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FINAL VERDICT

With an intelligence score of 98/100 vs 83/100, Grok 4 outperforms GLM-4.5-Flash by 15 points.

Clear Winner: Significant performance advantage for Grok 4.

HEAD-TO-HEAD

Feature	Grok 4	GLM-4.5-Flash
Context Window	256K	128K
Architecture	Transformer	Transformer
Est. MMLU Score	~92-95%	~75-79%
Release Date	2024	2024
Pricing Model	Paid / Commercial	Free Tier
Rate Limit (RPM)	Varies (low for free tier)	~1 request/second (Flash models)
Daily Limit	Credit-based	~1,000 requests/day (Flash tier)
Capabilities	No specific data	No specific data
Performance Tier	S-Tier (Elite)	B-Tier (Strong)
Speed Estimate	Medium	⚡ Very Fast
Primary Use Case	General Purpose	⚡ Fast Chat & Apps
Model Size	Undisclosed	Undisclosed
Limitations	$25/month credit cap (generous but finite) Lower rate limits on free tier Vision models have smaller context	Free Flash tier capped near 1 request/second Flagship GLM-5.2 model requires a paid plan Free-tier limits have changed more than once in the past year — verify on docs.z.ai
Key Strengths	Monthly renewing $25 free credits OpenAI-compatible API (drop-in replacement) Real-time knowledge from X/Twitter data	GLM-4.5-Flash & GLM-4.7-Flash Free Access Strong Coding Benchmarks OpenAI-Compatible Endpoint