AI Model Profile

Grok 4.3

Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window.

Family
Grok
Release date
Unknown
Status
Current
Context window
1M tokens
Output limit
Unknown
API
yes
Open weights
no
Local/self-hosted
no
Pricing
Usage-based xAI API pricing; verify official xAI docs before budgeting.
Verification
verified

Verification & Sources

Status
Verified
Source links
1
Freshness
Verified June 18, 2026
Last verified
June 18, 2026
Last updated
June 17, 2026

Key source checks

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Benchmark Caveat

Provider documentation and provider-published capability notes are directional, not universal rankings. Real results depend on prompts, tools, latency targets, pricing tier, safety filters, context length, and workload mix.

Best for

Candidate for xAI API workflows that need agentic tool calling, reasoning controls, and long context.

Skip if

Skip if your team needs independently benchmarked performance claims or contractual guarantees not present in the official provider documentation.

Strengths

Official xAI docs list agentic tool calling, configurable reasoning, and 1M context.

Weaknesses

This profile does not independently validate hallucination rate, search behavior, or benchmark quality.

Agent suitability

Candidate for agentic workflows based on xAI's official model description.

Kingy AI take

Use this profile as a source-backed reference point, not a ranking. Re-check official provider docs before making production or budget decisions.

Full Model Notes

Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window.

Coding notes

Evaluate coding directly or compare with Grok Build for code-specific workflows.

Reasoning notes

Official docs list configurable reasoning.

Creative notes

Supports image input according to xAI docs, but this profile is not a media-generation profile.

Research notes

Use xAI search/tool docs and current model docs before relying on current-event behavior.

API pricing notes

$1.25 input MTok and $2.50 output MTok in xAI model docs as checked on 2026-06-18.

License notes

Review the official provider terms and model documentation before relying on license or redistribution assumptions.