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AnyAPI

Grok 4.3 API

AnyAPI
About

Build advanced reasoning agents with Grok 4.3, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access Grok 4.3 via the AnyAPI API with up to 30K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
1.0M

Tokens

Input Limit
1.0M

Tokens

Max Output
30K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

Grok 4.3 by AnyAPI costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
xai/grok-4.3
Provider
AnyAPI
Family
grok
Release Date
Apr 17, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
ANYAPI_API_KEY
API Base URL
https://api.anyapi.ai/v1
Documentation