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Poe

Grok-4 API

Poe
About

Build advanced reasoning agents with Grok-4, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $3.00/1M input and $15.00/1M output tokens, native tool calling support. Access Grok-4 via the Poe API with up to 128K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Fixed
Attachment
Supported
Limits
Context Window
256K

Tokens

Input Limit
256K

Tokens

Max Output
128K

Tokens

Pricing

Standard (per 1M tokens)

Input
$3.00
Output
$15.00

Caching (per 1M tokens)

Read
$0.75
Frequently Asked Questions

Grok-4 by Poe costs $3.00 per 1M input tokens and $15.00 per 1M output tokens. Cached reads cost $0.75 per 1M tokens.

Model Details
ID
xai/grok-4
Provider
Poe
Family
grok
Release Date
Jul 10, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
POE_API_KEY
API Base URL
https://api.poe.com/v1
Documentation