Battle of the Models

Compare specific LLM models, context windows, and capabilities.

Grok 4.1 Fast

S-TIER

Grok (xAI)

Intelligence Score 96/100

Model Popularity 0 votes

Context Window 2M

Pricing Model Commercial / Paid

View Provider Analysis →

A-TIER

AI21 Labs

Intelligence Score 88/100

Context Window 256K

Pricing Model Commercial / Paid

Model Popularity 0 votes

View Provider Analysis →

FINAL VERDICT

With an intelligence score of 96/100 vs 88/100, Grok 4.1 Fast outperforms Jamba 1.5 Large by 8 points.

HEAD-TO-HEAD

Feature	Grok 4.1 Fast	Jamba 1.5 Large
Context Window	2M	256K
Architecture	Transformer	SSM-Transformer Hybrid (Mamba)
Est. MMLU Score	~92-95%	~80-84%
Release Date	2024	2024
Pricing Model	Paid / Commercial	Paid / Commercial
Rate Limit (RPM)	Varies (low for free tier)	100 RPM
Daily Limit	Credit-based	Credit-based
Capabilities	No specific data	Reasoning
Performance Tier	S-Tier (Elite)	A-Tier (Excellent)
Speed Estimate	Medium	Medium
Primary Use Case	General Purpose	General Purpose
Model Size	Undisclosed	Undisclosed
Limitations	$25/month credit cap (generous but finite) Lower rate limits on free tier Vision models have smaller context	Credits expire after 3 months Unique architecture (check compatibility) Focus on text (no vision yet)
Key Strengths	Monthly renewing $25 free credits OpenAI-compatible API (drop-in replacement) Real-time knowledge from X/Twitter data	Jamba: SSM-Transformer Hybrid 256K Context Window Highly efficient inference