falcon
**Falcon LLM (TII)**
**Overview**
Falcon is a family of open-source Large Language Models developed by the **Technology Innovation Institute (TII)** in Abu Dhabi. Upon release (May 2023), Falcon-40B was the top-ranked open-source model on the Hugging Face Open LLM Leaderboard.
**Key Models**
- **Falcon-180B**: A massive model comparable to GPT-3.5/GPT-4 in some benchmarks. Released Sept 2023.
- **Falcon-40B**: The original flagship.
- **Falcon-7B**: Lightweight version.
**Architecture**
Falcon introduced **Multi-Query Attention (MQA)** to the mainstream.
- Standard Attention: One head per query/key/value.
- MQA: Shared keys/values across all heads.
- **Result**: Significantly faster inference and lower memory usage (KV Cache) during text generation.
**Data Quality: RefinedWeb**
TII claimed the secret sauce was their **RefinedWeb** dataset. They filtered CommonCrawl aggressively, proving (like Dolly) that clean data beats "more data."
**Licensing**
Originally restrictive, TII re-licensed Falcon under Apache 2.0 (fully open metric) due to community feedback, setting a precedent for Open Weights.