Grok 4.20 Multi-Agent

Reviewed 2026-06-27

xAIx-ai/grok-4.20-multi-agent

Context: 2M
Price: $1.25/$2.5
Tooling: 5/5
Deploy: Cloud API

Best for

Agentic workflows and tool calling
Writing and editing code
Complex reasoning and analysis
Long documents (~2M context)

Skip if

You need open weights to self-host

Capability scores

Tool calling5/5

Multi-step reasoning5/5

Specifications

Context window: 2M tokens
VRAM: N/A (cloud-hosted)
License: proprietary
Pricing: $1.25/M input · $2.5/M output
Deployment: Cloud API

Our take

Grok 4.20 Multi-Agent from xAI offers a 2M-token context window and is well-suited to strong tool calling, multi-step reasoning, coding, long-context work. Pricing is $1.25/M input · $2.5/M output, billed per token through the provider API.

Watch for the trade-offs: weights are closed, so you cannot self-host.

Compare to

Claude Fable 5

Anthropic

1M context · $10/M input · $50/M output

Claude Opus 4.8

Anthropic

1M context · $5/M input · $25/M output

Claude Sonnet 4.6

Anthropic

1M context · $3/M input · $15/M output

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