xAI

Grok 4

xAI

xAI's latest generation model with enhanced mathematical reasoning capabilities, showing significant improvements in competition-level mathematics benchmarks. Features 2x faster end-to-end latency, supports 5 different voices, and achieves 10x daily user seconds compared to previous models.

Grok 3 Mini

xAI

A smaller, more efficient version of Grok 3 from xAI. Represents a new frontier in cost-efficient reasoning, particularly strong on STEM tasks that don't require as much world knowledge. Also features test-time compute and reasoning capabilities through the Grok 3 mini (Think) variant, achieving impressive performance on mathematical and coding benchmarks while being more resource-efficient than the full Grok 3 model.

Grok 3

xAI

xAI's most advanced model yet, blending superior reasoning with extensive pretraining knowledge. Trained on the Colossus supercluster with 10x the compute of previous state-of-the-art models. Features test-time compute and reasoning capabilities through reinforcement learning, allowing it to think for seconds to minutes while correcting errors and exploring alternatives. Achieved an Elo score of 1402 in the Chatbot Arena.

Grok-2 mini

xAI

Grok-2 mini is a small but capable sibling of Grok-2 that offers a balance between speed and answer quality. It demonstrates significant improvements over Grok-1.5 while maintaining faster inference speeds compared to the full Grok-2 model.

Grok-2

xAI

xAI's Grok-2 is a significant step forward from Grok-1.5, featuring frontier capabilities in chat, coding, and reasoning. It outperformed Claude 3.5 Sonnet and GPT-4-Turbo on the LMSYS leaderboard and shows significant improvements in reasoning with retrieved content and tool use capabilities.

Grok 1

xAI

First model from Elon Musk's xAI, reportedly with 314B parameters. Deployed in the Grok chatbot with real-time access to X (Twitter) data. Offered an 8K context and aimed to provide up-to-date information via integration with social media.