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.
Before you buy
Buying details reviewed 2026-10-23. Price, included amounts and access are dated observations; check the official source for current terms. This date does not review the whole fact ledger or renew historical demonstrations.
Best for: Candidate for xAI API workflows that need agentic tool calling, reasoning controls, and long context.
Price: Exact legacy-model offer not confirmed; check current access
Included: Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window.
Main limits: This is an exact-generation profile. Current family pricing and successor access do not prove that this version remains available. Do not commit a production budget until the provider confirms the model ID, unit rates and lifecycle.
What Kingy showed: Related coverage: The cheapest AI API models in 2026—priced as workloads, not headlines. This review does not treat that article as a new test of this exact model, plan or current release.
Check official plans · See the demonstration and disclosure · Compare these workflows
- Family
- Grok
- Release date
- Unknown
- Status
- Current
- Context window
- 1M tokens
- Output limit
- Unknown
- API
- Unknown
- Open weights
- no
- Local/self-hosted
- no
- Pricing
- Usage-based xAI API pricing; verify official xAI docs before budgeting.
- Evidence state
- Recheck due
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.
Verification & Sources
- Evidence state
- Recheck due
- Source links
- 1
- Freshness
- Needs recheck: checked June 18, 2026
- Last updated
- October 23, 2026
What this evidence state means
- Definition
- The claim was previously checked, but its review window expired or a material change may have invalidated it.
- Required provenance
- The prior evidence and check date are retained, together with the expiry or change signal that triggered recheck.
- Owner
- Kingy freshness queue owner and assigned editorial reviewer
- Freshness rule
- This is already outside its freshness rule. It must not be presented as current until reviewed against current evidence.
- Disputes and corrections
- Use “Suggest a correction” on the record. Kingy editorial reviews the cited evidence, records material corrections, and changes or removes the state when it is not supported.
Key source checks
Suggest a correction
Full Model Notes
Who should consider it
Candidate for xAI API workflows that need agentic tool calling, reasoning controls, and long context. Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window.
Plan, price and billing scope
Exact legacy-model offer not confirmed; check current access. Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window. Prices use the currency and billing term stated here. Where a numeric rate, region or current entitlement could not be verified, it remains explicit; no checkout was completed.
Limits that affect the decision
This is an exact-generation profile. Current family pricing and successor access do not prove that this version remains available. Do not commit a production budget until the provider confirms the model ID, unit rates and lifecycle.
What the existing evidence shows
Related coverage: The cheapest AI API models in 2026—priced as workloads, not headlines. This review does not treat that article as a new test of this exact model, plan or current release. Related workflow reading; not a demonstration of this exact product. Read the related article.
Sources and buying-review date
Buying review completed October 23, 2026. This is a source-based buying assessment. No paid product test, new generation, checkout or performance benchmark was performed. Vendor descriptions and historical examples remain distinct from independently measured results. The date does not renew the broader canonical fact ledger.
Check the official offer · Compare related options
Earlier profile, sources and dates
This older record retains its original scope. Current buying qualifications above take precedence where terms have changed.
Grok 4.3 is an xAI API model listed with agentic tool calling, configurable reasoning, and a 1M-token context window.
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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.
Official Model Links
Model Intelligence Research Map
Use these internal paths to move from this model profile into provider pages, static comparison pages, related Kingy records, and the broader AI launch graph. These are research paths, not rankings.