Grok 4.20

xAI model details for pricing, context, and release tracking.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output
Model Specs
ProviderxAI
Model IDx-ai/grok-4.20
Prompt Price
per 1M tokens		$1.25
Completion Price
per 1M tokens		$2.5
Sample Workload Cost
1M input + 500K output		$2.5
Context Window2M
Release Date2026-03-31
Popularity RankUnranked
Daily DemandN/A

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Prices are normalized to USD per 1M tokens.
Grok 4.20 Calculating… Estimated monthly API cost
Unit prices $1.25 input / $2.5 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Model Introduction

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

Best Fit

Grok 4.20 is best suited for long-context workloads.

Cost Example

A 1M input token plus 500K output token workload is estimated at $2.5.

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