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🧠 ReasoningBudget-Friendly

Grok 4.20

by xAI

xAI's most advanced multi-agent reasoning model with 2M context

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Input Price

$1.25

per 1M tokens

Output Price

$2.5

per 1M tokens

Context Window

2,000K

tokens (131.072K max output)

Specifications

Release Date2026-02-17
Category🧠 Reasoning
Context Window2,000,000 tokens
Max Output131,072 tokens
ProviderxAI
Input Cost$1.25 / 1M tokens
Output Cost$2.5 / 1M tokens
Price TierBudget-Friendly

Capabilities

textvisionreasoningcode

Related Use Cases

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Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$0.17$5.25$64
Medium~200 requests/day500K in / 100K out$0.88$26.25$319
Heavy~1K requests/day2,000K in / 500K out$3.75$112.50$1369
Enterprise~5K requests/day10,000K in / 2,000K out$17.50$525.00$6388

Cost Calculator

Alternatives to Grok 4.20

💰 Cheaper Options

Gemini 3 FlashGoogle
7% cheaper
$0.5/M in · $3/M out
Gemini 2.5 FlashGoogle
25% cheaper
$0.3/M in · $2.5/M out
Devstral 2Mistral AI
36% cheaper
$0.4/M in · $2/M out
Mistral Medium 3.1Mistral AI
36% cheaper
$0.4/M in · $2/M out

🚀 More Powerful

Claude 3.5 HaikuAnthropic
28% more
$0.8/M in · $4/M out
GPT-5.4 miniOpenAI
40% more
$0.75/M in · $4.5/M out
o4-miniOpenAI
47% more
$1.1/M in · $4.4/M out
o3-miniOpenAI
47% more
$1.1/M in · $4.4/M out

Frequently Asked Questions

How much does Grok 4.20 API cost per million tokens?▼
Grok 4.20 costs $1.25 per million input tokens and $2.5 per million output tokens as of 2026. These are the standard API rates from xAI.
What is the Grok 4.20 context window?▼
Grok 4.20 supports a 2M context window (2,000,000 tokens), which means you can process up to 2M tokens in a single API call.
How much does Grok 4.20 cost per month?▼
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), Grok 4.20 costs approximately $26.25/month. Light usage runs about $5.25/month, and heavy usage (~1K requests/day) around $112.50/month.
Is there a cheaper alternative to Grok 4.20?▼
Yes — Gemini 3 Flash by Google is a cheaper option at $0.5/M input tokens vs $1.25/M for Grok 4.20. Other budget alternatives include models in the efficient tier.
Is Grok 4.20 good for ai agent / agentic workflows?▼
Grok 4.20 is a reasoning model with support for text, vision, reasoning. For ai agent / agentic workflows, it offers 2M context and costs $1.25/M input tokens — a budget-friendly choice for this use case.

Grok 4.20 Comparisons

codex mini latest vs grok 4 20grok 4 20 vs o4 mini deep researchgrok 4 20 vs o3 deep researchgpt 5 2 vs grok 4 20gpt 5 2 pro vs grok 4 20gpt 5 5 vs grok 4 20gpt 5 5 pro vs grok 4 20gpt 5 4 pro vs grok 4 20

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