Grok 4.20

xAI API model specs with normalized input price, output price, context window, sample workload cost, and related comparisons.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget brief

Grok 4.20 is estimated at $2.5 for the standard workload.

Grok 4.20 is best suited for long-context workloads. A 1M input token plus 500K output token workload is estimated at $2.5.

Input price$1.25per 1M tokens
Output price$2.5per 1M tokens
Context window2Mreported maximum
Popularity#882.8B tokens signal volume

Use this as a first-pass planning estimate, then verify provider limits, routing, discounts, and availability before production deployment.

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 Date
Popularity#88
Popularity Signal2.8B tokens

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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.

Alternative path

Alternative Shortlist

Open model finder

Use these rows to build a test shortlist around Grok 4.20. Lower cost, same-provider fit, and larger context are separate decisions, so each group is ranked by a different signal.

Lower-cost alternatives

Cross-provider candidates with a lower standard 1M input plus 500K output estimate.

ModelProviderSample CostContextWhy it is hereNext Step
🔥Owl AlphaOpenRouter$01.05MLower standard workload estimate from another provider.Open model Compare
New🔥Nemotron 3 Ultra (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare
🔥Laguna M.1 (free)Poolside$0262.14KLower standard workload estimate from another provider.Open model Compare
Nemotron 3 Super (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare

Same-provider swaps

Lower-cost options from the same provider, useful when account setup or procurement is already fixed.

ModelProviderSample CostContextWhy it is hereNext Step
Grok Build 0.1xAI$2256KSame provider with a lower standard workload estimate.Open model Compare

Larger-context upgrades near this budget

Models with more context that stay within a close sample-cost band when price data is available.

ModelProviderSample CostContextWhy it is hereNext Step
Llama 4 ScoutMeta$0.2510MMore context while staying near this model's sample-cost band.Open model Compare
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.

Decision Shortcuts

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Cheaper alternatives

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High-Interest Comparisons

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ComparisonCost-first PickContext Pick
Grok 4.3 vs Grok 4.20TieGrok 4.20
🔥Owl Alpha vs Grok 4.20Owl AlphaGrok 4.20

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