About xAI
xAI is an AI company founded by Elon Musk in 2023 with the mission to “understand the true nature of the universe.” The company develops the Grok family of AI models, which power the Grok chatbot integrated into the X (formerly Twitter) platform.
Grok-3 (2025) represents a major leap in capability, achieving strong scores on reasoning and mathematics benchmarks. xAI has rapidly scaled its compute infrastructure, building one of the largest AI training clusters in the world.
Grok Model Timeline
Verified scores from official xAI announcements.
Grok-3
xAI’s flagship model. With “Think” mode, Grok-3 achieves 84.6% on GPQA Diamond and 93.3% on AIME 2025 (cons@64). Grok-3 mini achieves 95.8% on AIME 2024.
Grok-2
A significant upgrade with improved reasoning and multimodal capabilities. Integrated into X’s platform features.
Grok-1.5
An incremental improvement with better reasoning. Introduced vision capabilities for image understanding.
Grok-1
xAI’s first model. Released with open weights (314B parameters), establishing the Grok brand.
Benchmark Performance
Grok-3 scores across verified benchmark categories.
About This Data
Scores sourced from xAI’s official Grok-3 announcement. AIME 2025 score uses consensus@64 methodology. LiveCodeBench is a coding benchmark not included in the standard 6-category comparison.