Falcon vs. Grok

Overview

Falcon LLM is the flagship LLM of the Technology Innovation Institute in Abu Dhabi.

Falcon LLM is a powerful LLM developed by the Technology Innovation Institute (https://www.tii.ae). Unlike other popular LLMs, Falcon was not built off of LLaMA, but instead using a custom data pipeline and distributed training system. The dataset is the RefinedWeb dataset (available on Hugging Face), and the initial models are available in 7B and 40B forms. Instruct and chat-finetuned models are available as well. Perhaps most excitingly, Falcon outperforms LLaMA, the previous de facto pretrained LLM.

Initial release: 2023-05-23

Reference

https://falconllm.tii.ae/

Further Reading

• https://huggingface.co/tiiuae
• https://twitter.com/Thom_Wolf/status/1662085371826405377
• https://www.businesswire.com/news/home/20230531005608/en/UAE%E2%80%99s-Falcon-40B-World%E2%80%99s-Top-Ranked-AI-Model-from-Technology-Innovation-Institute-is-Now-Royalty-Free

Overview

Grok is the proprietary model family available through xAI's products and API. Grok 4.5 is the current generation, focused on coding, agentic tasks, reasoning, and knowledge work.

xAI introduced Grok in November 2023 and released the weights for Grok-1 under Apache 2.0 in March 2024. Later generations are proprietary and available through Grok, X, and the xAI API. Grok 4.5, released in July 2026, is xAI's current flagship model for software engineering, tool-driven agents, complex reasoning, and professional knowledge work.

Initial release: 2023-11-05

Current generation: Grok 4.5

Reference

https://x.ai/news/grok-4-5

Further Reading

• https://github.com/xai-org/grok-1/tree/main
• https://x.ai/news/grok-4-5