Grok 4.20 Experimental Beta Reasoning is xAI's language model with a 1.0M context window, starting at $1.25 / 1M input and $2.50 / 1M output. An experimental reasoning beta variant of xAI's Grok 4.20, combining chain-of-thought with cutting-edge agentic capabilities.
Specifications
Canonical IDxai-grok-4-20-experimental-beta-reasoning
TypeLanguage
StatusActive
CreatorxAIxAI
Providers
Context Window1.0M tokens
Input ModalitiesImageText
Output ModalitiesText
Reasoning Effortsdefault

Capabilities

Input2/5
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

US Dollar ($)
Per 1M tokens
ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
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xAI
grok-4.20-experimental-beta-0304-reasoning
$1.25$2.50$0.2$0.625$1.25$0.1

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Grok 4.7500K$1.20$3.60Available
Grok 4.6524K$2.00$6.00Available
Grok 4.5500K$2.00$6.00Available
Grok 4.31.0M$1.25$2.50Available
Grok 4.202.0M$1.25$2.50Available
Grok 4.20 Multi-Agent2.0M$1.25$2.50Available
Grok 4.20 Multi-Agent Beta2.0M$1.25$2.50Available
Grok 4.20 Non-Reasoning2.0M$1.25$2.50Available
Grok 4.20 Reasoning2.0M$1.25$2.50Available
Grok 4.1 Reasoning2.0M$0.200$0.500Deprecated
Grok 4.20 Experimental Beta Reasoning—1.0M$1.25$2.50Current

Model IDs

xai-grok-4-20-experimental-beta-reasoning
xai/grok-4.20-experimental-beta-0304-reasoning
xai/grok-4.20-experimental-beta-reasoning-latest