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Grok 4.3

by xAI

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Grok 4.3 launched 2026-04-30. 1M token context window. Cached input at $0.20/M. Requests >200K input tokens billed at 2x.

Refreshed weekly

Model details

Model family
Grok 4
Base model
—
Context window
1.0M tokens
Input modalities
text
Output modalities
text
Access
Proprietary
Pricing
pay per use
API available
Yes
Model card / docs
https://docs.x.ai

Mantle Index

Equity Score

Mixed

Measures fairness across demographic groups. Higher is more equitable.

60/ 100

Safety Score

Mixed

Measures resistance to harmful outputs. Higher is safer.

62/ 100

The Equity Score and Safety Score roll up the latest Mantle Index assessment. Component breakdowns and risk-tier justification are available on Pro and Enterprise.

Benchmark sub-scores

Security score

4/ 100 · Needs work

Computed from compliance, encryption, data handling, documentation, and vendor contacts — multiplied by research confidence (low).

Vendor contacts

Certifications

No certifications recorded yet.

Research coverage

0 dimensions fully covered · 0 partially covered.

    Supply chain

    No supply-chain links recorded yet.

    Citations

    No public citations recorded yet.

    Recent changes

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