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Grok 4 20 Reasoning


Grok 4 20 Reasoning is xAI logoxAI's language model with a 2.0M context window, available from 2 providers. The reasoning configuration of xAI's Grok 4.20 flagship, combining multimodal inputs with explicit chain-of-thought for complex tasks.
Spec
Canonical IDxai-grok-4-20-reasoning
TypeLanguage
StatusActive
CreatorxAIxAI
Providers
Context Window2.0M tokens
Input ModalitiesImagePdfText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 1 month ago

Capabilities

Input3/5
Text
Image
Audio·
Video·
PDF
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities5/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling·
Structured Outputs
Native JSON Schema·
Web Search
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching
Assistant Prefill·

Pricing by Provider

ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Vercel AI Gateway logo
Vercel AI Gateway
$2.00$6.00$0.200
xAI logo
xAI
$2.00$6.00$0.200$1.00$3.00$0.100

Cost Calculator

Preset:
Compares every provider & tier in USD

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Grok 4.20 Multi-Agent2.0M$2.00$6.00Available
Grok 4.20 Multi Agent Beta2.0M$2.00$6.00Available
Grok 4 20 Reasoning2.0MCurrent
Grok 4 20 Non-Reasoning2.0MAvailable
Grok 4 20131K$3.00$15.00Available
Grok 4.1 Fast2.0M$0.200$0.500Available
Grok 4.1 Fast Non-Reasoning2.0M$0.200$0.500Available
Grok 4.1 Fast Reasoning2.0M$0.200$0.500Available
Grok 4 Non-Reasoning2.0M$2.00$6.00Available
Grok 4 Reasoning2.0M$2.00$6.00Available
Grok 4 Fast2.0M$0.200$0.500Available

Model IDs