Building Grok — a maximally curious AI with real-time web access and deep reasoning.
About
xAI was founded by Elon Musk in 2023 with the goal of building AI that seeks to understand the universe. Grok models are integrated into X (Twitter), giving them unique access to real-time social and news data. The Grok-3 family is competitive with GPT-4 class models on reasoning benchmarks, and its Thinking mode enables extended chain-of-thought inference.
Key highlights
Unique real-time access to X (Twitter) data and trending topics
Thinking mode available across the full Grok-3 family
Competitive benchmark scores on AIME 2025, GPQA, and LiveCodeBench
API access through the xAI developer platform
Natively integrated into X Premium subscriptions
Models
Context windows, pricing, capabilities, and API identifiers — everything you need to choose the right model for your workload.
2025
xAI's flagship model. Offers Thinking mode for step-by-step reasoning and access to real-time information from X's data network. Strong on STEM and coding benchmarks.
grok-32025
A lighter Grok-3 that retains Thinking mode at a fraction of the cost. Ideal for high-volume STEM tasks, math tutoring, and code review pipelines.
grok-3-mini2024
Grok's multimodal vision model. Handles image understanding, chart and diagram analysis, and document processing tasks.
grok-2-vision-latestUse Cases
Each provider has specialisms shaped by their architecture decisions, training data, and API design. Here is where xAI (Grok) performs best.
Get started
Visit the official xAI (Grok) platform to access API keys, documentation, and pricing details.