ModelRefs / Grok 4 by xAI — Benchmarks, Pricing & Review (2026)

Grok 4 by xAI — Benchmarks, Pricing & Review (2026)

Grok 4 (xAI): Grok 4 is xAI's frontier model with a 256K context window and vision capabilities, positioned as xAI's most capable model for scientific and te…

What this reference supports

Grok 4 is xAI's frontier reasoning model, served through the xAI API and Grok products with native tool use and real-time information access positioning. Implementation decisions weigh its reasoning capability against a smaller enterprise tooling ecosystem than incumbent providers, making integration and data-control review a first-class task.

Grok 4 is attributed to xAI in ModelRefs' canonical registry. Tracked modalities: Text input and output, Image input on supported variants. Primary use cases considered on ModelRefs: Reasoning-heavy analysis and coding workloads via the xAI API; Applications that value real-time information access through provider-side integrations.

This ModelRefs profile is Provisional and pending review — decision-support material, not a final or universal ranking. Confirm current behavior, access, pricing, limits, licensing, and lifecycle in xAI's own documentation, and evaluate Grok 4 on representative workloads before implementation.

Benchmark & Evaluation

ModelRefs does not yet hold qualifying sourced benchmark evidence for Grok 4, so its benchmark coverage is incomplete. Treat any benchmark discussion as provisional and confirm results on representative workloads before selecting it.

  • No benchmark score is imported into this editorial record. Provider-reported evaluations support scoped notes only; canonical score records are governed separately with their own provenance.
  • xAI's release announcement and model card report provider-run evaluations; no score is imported by this record.

Implementation considerations

  • Review data-retention, training-use, and compliance terms for the exact API tier; enterprise-control maturity differs from incumbent providers.
  • Evaluate reasoning-mode latency and token costs on representative tasks; provider-reported results use provider-defined harnesses.
  • Hosted through the xAI API and Grok consumer/enterprise products.
  • Verify current model variants, quotas, rates, and regional availability in xAI's documentation before rollout.

Risks and limitations

  • Hosted-model behavior, quotas, pricing, and data controls can change without a client-side version pin unless a dated snapshot is used.
  • Provider-reported capabilities require task-specific evaluation before production reliance.

Source coverage

This reference is Provisional. Model behavior, access, pricing, limits, and lifecycle can change; verify the linked provider documentation and run task-specific evaluations before implementation.

Known coverage gaps:

  • Independent evaluation reproduction is not attached.
  • Enterprise data-control and compliance documentation coverage is incomplete.

Sources

Continue your research

Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Grok 4 by xAI — Benchmarks, Pricing & Review (2026).