Grok 4.20 Multi - Agent Beta API
About
Build advanced reasoning agents with Grok 4.20 Multi - Agent Beta, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $2.00/1M input and $6.00/1M output tokens. Access Grok 4.20 Multi - Agent Beta via the OpenRouter API with up to 30K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
Yes
Structured Output
Limits
Context Window
2.0M
Tokens
Input Limit
2.0M
Tokens
Max Output
30K
Tokens
Pricing
Standard (per 1M tokens)
Input
$2.00
Output
$6.00
Caching (per 1M tokens)
Read
$0.20
Frequently Asked Questions
Grok 4.20 Multi - Agent Beta by OpenRouter costs $2.00 per 1M input tokens and $6.00 per 1M output tokens. Cached reads cost $0.20 per 1M tokens.
Model Details
ID
x-ai/grok-4.20-multi-agent-beta
Provider
OpenRouterFamily
grok
Release Date
Mar 12, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1