xAI
grok-4-fast
proprietaryMultimodal
Benchmark Average (0–100)
60.6%
Average of non-null benchmark scores across all evaluated tasks.
BENCHMARK SCORES
GPQA85.7%
Graduate-Level Google-Proof Q&A. PhD-level multiple-choice questions in chemistry, biology, and physics. Scored by accuracy.
AIME 202592.0%
AIME 2025 is a mathematics competition benchmark testing advanced problem-solving.
BrowseComp44.9%
BrowseComp tests web browsing comprehension, measuring ability to find and synthesize information from websites.
HLE20.0%
Humanity's Last Exam (HLE) is a multi-modal benchmark testing frontier knowledge across mathematics, humanities, and natural sciences with 2,500 expert-level questions.
OTHER BENCHMARKS
SimpleQA
95.0%
MODEL INFO
Organization
xAI
Context Window
2,000,000
Release Date
2025-08-28
Knowledge Cutoff
—
Parameters
—
License
proprietary
Input Price ($/M)
$0.2000
Output Price ($/M)
$0.5000
METADATA
Announcement Date
2025-08-28
Organization Country
US
Canonical ID
—