AI Model Timeline

Tracking the accelerating release frequency of frontier AI models.

Grok 4.1

X.AI·

LLMsflagshipcloud

Overview

Refined Grok 4 with improved safety and alignment.

Capabilities and innovations

Truth seekingReduced biasEnhanced safety

Benchmarks

BenchmarkScoreSource
GPQA Diamond89.3%unsourced
Humanity’s Last Exam (no tools)36.7%unsourced
SWE-bench Verified62.1%unsourced
MMLU91.2%unsourced
  • SWE-bench Pro: not reported by the vendor
  • MMLU-Pro: not reported by the vendor
  • Terminal-Bench 2.x: benchmark did not exist at release
  • MMMU-Pro: benchmark did not exist at release

Reliability

Hallucination rate (Vectara HHEM)
19.2% (lower is better)independent
Agentic tool use (τ-bench)
74.6% (higher is better)third party

Links

More from X.AI

Data curated by AI Model Timeline. See the methodology for admission criteria, benchmark eras and source priority.