xAI: Grok 4.20 Multi-Agent Beta
Analysis Summary
xAI: Grok 4.20 Multi-Agent Beta sits in the Professional tier on our leaderboard, ranked #14 of 556 published models on overall intelligence. At $2.00 input and $6.00 output per 1M tokens, it is among the most expensive on the market. It offers an exceptionally large context window suited to long-document workflows and supports tool use, vision, and reasoning.
Editorial notes
Grok 4.20 Multi-Agent Beta from xAI combines an intelligence index of 48.5 with a top-tier agentic index of 68.7, a 2M token context, vision, and strong instruction following at $2.00 input per million tokens.
Assessed May 14, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
Grok 4.20 Multi-Agent Beta is a variant of xAI’s Grok 4.20 designed for collaborative, agent-based workflows. Multiple agents operate in parallel to conduct deep research, coordinate tool use, and synthesize information across complex tasks. Reasoning effort behavior:
- low / medium: 4 agents
- high / xhigh: 16 agents
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does xAI: Grok 4.20 Multi-Agent Beta stack up?
Compare side-by-side with other professional models.
Model Information
| OpenRouter ID |
x-ai/grok-4.20-multi-agent-beta
|
| Provider | x-ai |
| Release Date | March 12, 2026 |
| Context Length | 2,000,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.00 | $0.002000 |
| Output | $6.00 | $0.006000 |
Live Performance
Live endpoint metrics — refreshed every 30 minutes.
