Battle of the Models

Compare specific LLM models, context windows, and capabilities.

AI21 Jamba 1.5 Large

DEPRECATED

GitHub Models

This model is no longer active/free — kept for reference.

Intelligence Score 88/100

Model Popularity 0 votes

Context Window 256K

Pricing Model Free / Open

View Provider Analysis →

OpenRouter

Intelligence Score 65/100

Context Window 128k

Pricing Model Free / Open

Model Popularity 0 votes

View Provider Analysis →

FINAL VERDICT

With an intelligence score of 88/100 vs 65/100, AI21 Jamba 1.5 Large outperforms OpenAI: gpt-oss-120b (free) by 23 points.

Clear Winner: Significant performance advantage for AI21 Jamba 1.5 Large.

HEAD-TO-HEAD

Feature	AI21 Jamba 1.5 Large	OpenAI: gpt-oss-120b (free)
Context Window	256K	128k
Architecture	SSM-Transformer Hybrid (Mamba)	Transformer (Proprietary)
Est. MMLU Score	~80-84%	~60-64%
Release Date	2024	2024
Pricing Model	Free Tier	Free Tier
Rate Limit (RPM)	10 RPM (high-tier) / higher for mini-tier	20 requests/minute
Daily Limit	50 RPD (high-tier models) / 150 RPD (mini-tier models)	50 requests/day (up to 1000 with $10 topup)
Capabilities	No specific data	No specific data
Performance Tier	A-Tier (Excellent)	C-Tier (Good)
Speed Estimate	Medium	Medium
Primary Use Case	General Purpose	General Purpose
Model Size	Undisclosed	120b
Limitations	Restrictive limits Requires GitHub account Rate limits vary by Copilot tier	Limits depend on account history/topup Community key models Free models have lower priority during peak demand
Key Strengths	Prototyping	Unified API for 100+ models from all providers OpenAI-compatible endpoint (drop-in replacement) Automatic model fallback and routing