Grok 3 Mini Fast High is xAI's language model. A compact, fast-inference variant of Grok 3 Mini tuned for high-quality reasoning at reduced latency.
Specifications
Canonical IDxai-grok-3-mini-fast-high
TypeLanguage
StatusActive
CreatorxAIxAI
Providers
Input ModalitiesText
Output ModalitiesText

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities0/13
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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grok-3-mini-fast-high
$1.25$2.50$0.2$0.625$1.25$0.1

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Grok 3 Mini131K$0.250$0.500Deprecated
Grok 3 Mini Beta131K——Deprecated
Grok 3 Mini Fast131K$0.600$4.00Deprecated
Grok 3 Mini Fast High————Current
Grok 3 Mini Reasoning————Available
Grok 3 Mini Fast High Beta————Available
Grok 3 Mini High————Available
Grok 3 Mini High Beta————Available

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Grok 4.7—524K$2.00$6.00
Grok 4.6—524K$2.00$6.00
Grok 4.5—500K$2.00$6.00
Grok 4.3—1.0M$1.25$2.50
Grok 4.3 Batch—1.0M$1.00$2.00
Grok 4.20—2.0M$1.25$2.50
Grok 4.20 Multi-Agent—2.0M$1.25$2.50
Grok 4.20 Multi-Agent Beta—2.0M$1.25$2.50
Grok 4.20 Non-Reasoning—2.0M$1.25$2.50
Grok 4.20 Multi-Agent—2.0M$1.00$2.00

Model IDs

xai-grok-3-mini-fast-high