Model · xAI

Grok 4.20 Multi-Agent

Grok 4.20 Multi-Agent 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 synthesi

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Pricing

Model Overview

Tracked token-pricing fields for this model family. Empty pricing fields stay hidden until the source publishes them.

Model pricing
Price field	Value
Input	$2.00 / 1M tokens
Output	$6.00 / 1M tokens
Cached read	$0.20 / 1M tokens
Source	OpenRouter
Verified	Apr 5, 2026 (High)

Surface

Capabilities

Input and output modalities, enabled feature flags, strengths, and tradeoffs.

Model capabilities
Attribute	Values
Modalities	textimagefile to text
Capabilities	reasoningimageInputpromptCachingstructuredOutputs

References

Official Links

Canonical launch, documentation, pricing, and release-note URLs.

Official model links
Reference	URL
Intro	https://openrouter.ai/x-ai/grok-4.20-multi-agent
Docs	https://openrouter.ai/x-ai/grok-4.20-multi-agent
Pricing	Verify current pricing on provider’s page →

Coverage

Benchmark Coverage

Reported benchmark families, versions, scores, sources, and notes.

Benchmark coverage
Benchmark	Version	Score	Date	Source	Notes

Lifecycle

Release History

Lifecycle transitions and release timeline for this model family.

Release history
Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
Grok 4.20 Multi-Agent	x-ai-grok-4-20-multi-agent	Active	Mar 31, 2026	—	—	Model available via OpenRouter.

Surfaces

Host Coverage

Provider-specific hosting, context, pricing notes, feature differences, and provider-status context.

Host coverage
Host	Type	Context	Pricing Note	Differences
OpenRouter	aggregator	2.0M	$2.00/1M in · $6.00/1M out via OpenRouter	—

Migration

Migration Guidance

Documented migration summary, successor families, and known breaking changes.

Migration guidance
Topic	Details
Summary

Timeline

Change Events

Cataloged model-family updates and source references.

Change events
Date	Type	Title	Description	Source
Mar 31, 2026	family_added	Grok 4.20 Multi-Agent published	Model made available via OpenRouter.	OpenRouter

From xAI

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