xAI: Grok 4.20

Public pricingIntelligence 79/100Huge memory視覚深い思考ツール利用

xAI: Grok 4.20 は マルチモーダル モデルで、エージェント業務とツール利用 に向いています。マルチモーダル入力処理、安定したツール利用とエージェント動作、1M+ tokensのコンテキスト、バランス型コストの特性を組み合わせ、agent workflows, tool use, and orchestration で安定した動作を支えます。精度・文脈・制御 が重要な場面に合っており、安定した出力、柔軟な導入、拡張性を求めるチームに実用的です。 安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。 安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。 安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。

Input

$2.00/1M

Output

$6.00/1M

Cached

$0.20/1M

Batch

$1.00/1M

Calculate your Grok 4.20 bill.

Set your workload — see cost at your exact volume.

What would Grok 4.20 cost you?

Adjust the workload to see your monthly bill.

1,00010,00050,000250,0001M10M

Technical specifications

Grok 4.20 at a glance.

Memory

2,000,000

tokens

Max reply

65,536

tokens

Memory tier

Huge

multiple books or whole repositories

Tokenizer

grok

Released

Mar 2026

Training cutoff

Sep 2025

Availability

Public pricing

Status

active

Benchmarks

Quality benchmarks

Independent evaluations from public leaderboards. Higher is better.

  • aa_intelligence_index

    48

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick Grok 4.20

  • Multi-step reasoning, research agents, or hard math.
  • Screenshot analysis, image understanding, or document OCR.
  • Agentic workflows that call tools or APIs.
  • Long documents, full codebases, or extensive chat histories.

When to look elsewhere

  • Very latency-sensitive, real-time apps where every millisecond counts.

Alternatives

Similar models to compare.

FAQ

Grok 4.20 — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, Grok 4.20 costs roughly $390 per month. Input is $2.00 /1M tokens and output is $6.00 /1M tokens.
Grok 4.20 has a 2,000,000-token context window (huge memory — multiple books or whole repositories). That means you can fit about 375,000 words of input and history in a single call.
Beyond text generation, Grok 4.20 supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output. It streams replies by default.
Grok 4.20 was released in March 2026, with training data cut off around September 2025.
Models in a similar class include Grok 4.20 Multi-Agent, Grok 4, Grok 4 Fast. The "Similar models" section below this FAQ links into each.

Still unsure?

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