Grok 4.20 Multi-Agent — xAI | Modeldex

Grok 4.20 Multi-Agent

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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 synthesize information...

VisionLong context

Knowledge cutoff

Sep 1, 2025(8 months ago)

API release

Mar 31, 2026(this month)

Not enough benchmark coverage yet for an Intelligence Index — needs at least 3 results across 2 categories.

Overview

History

Grok 4.20 Multi-Agent became available via the xAI API on 2026-03-31.

Training & availability

Training data has a knowledge cutoff of 2025-09-01 — information about events after that date is unlikely to appear in the model's responses. xAI has not released the underlying model weights — access is via their hosted API only.

Capabilities

Context window: 2.0M tokens.
Input modalities: text, image, file.

Recommended for: vision, long-context.

Pricing

Input: $2.0000 per 1M tokens
Output: $6.0000 per 1M tokens

Use the cost calculator above to estimate monthly spend for your workload.

Quick start

Minimal example using the OpenRouter API. Copy, paste, replace the key.

from openai import OpenAI

client = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key="sk-or-...",
)
resp = client.chat.completions.create(
    model="xai/grok-4-20-multi-agent",
    messages=[{"role": "user", "content": "Explain quantum computing in one sentence."}],
)
print(resp.choices[0].message.content)

Cost calculator

Estimate your monthly bill. Presets are typical workload sizes.

Input tokens / month5.0M

@ $2/1M

Output tokens / month2.0M

@ $6/1M

Input cost

$10

5.0M × $2/1M

Output cost

$12

2.0M × $6/1M

Total / month

$22

$264 / year

Integrations & tooling support

Tool calling: Not supported
Structured outputs: Not supported

Price vs quality

Not enough data

This model has no benchmark scores recorded yet.

Community ratings

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