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Vercel AI Gateway

Grok 3 Fast API

Vercel AI Gateway
About

Process massive datasets with Grok 3 Fast, featuring an expansive 131K context window for long-document analysis. This model delivers cost-effective pricing at $5.00/1M input and $25.00/1M output tokens, native tool calling support. Access Grok 3 Fast via the Vercel AI Gateway API with up to 8K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
131K

Tokens

Input Limit
131K

Tokens

Max Output
8K

Tokens

Pricing

Standard (per 1M tokens)

Input
$5.00
Output
$25.00

Caching (per 1M tokens)

Read
$1.25
Frequently Asked Questions

Grok 3 Fast by Vercel AI Gateway costs $5.00 per 1M input tokens and $25.00 per 1M output tokens. Cached reads cost $1.25 per 1M tokens.

Model Details
ID
xai/grok-3-fast
Provider
Vercel AI Gateway
Family
grok
Release Date
Feb 17, 2025
Knowledge Cutoff
Nov 1, 2024
API Integration
NPM Package
@ai-sdk/gateway
Environment Variables
AI_GATEWAY_API_KEY
Documentation