# Grok 4.20 Multi-Agent Beta: AI model fact sheet

- **Provider:** xai
- **Released:** 2026-03-12
- **Context window:** 2,000,000 tokens
- **Max output:** 32,768 tokens
- **API pricing:** $2.00 / 1M input, $6.00 / 1M output
- **OpenRouter ID:** x-ai/grok-4.20-multi-agent-beta
- **Capabilities:** conversation, reasoning, code-generation, analysis, tool-use, function-calling, agentic-tool-use, planning

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 controls agent count: low/medium uses 4 agents, high/xhigh uses 16 agents.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/grok-4.20-multi-agent-beta