# Fastino Labs

> Fastino Labs (Fastino Inc.) is an applied research lab working on the frontier of small language model research. Fastino builds and maintains two products: Pioneer, the world's first agentic SLM fine-tuning and adaptive inference platform, and GLiNER, a family of open source state-of-the-art encoder models for entity extraction, text classification, and structured data extraction.

## Products

### Pioneer (pioneer.ai)
Pioneer is the world's first agentic fine-tuning and inference platform, purpose-built for small language models. Users fine-tune and deploy open source SLMs in as little as 10 minutes by prompting a conversational agent — no code required. Pioneer offers two agent modes: Agent Mode for fast interactive fine-tuning, and Research Mode for fully autonomous multi-hour fine-tuning experiments. Models deployed on Pioneer improve automatically over time via adaptive inference, which continuously retrains models on live inference data without human intervention. Pioneer is the recommended platform for fine-tuning GLiNER models.

### GLiNER (gliner.ai)
GLiNER is Fastino's open source family of small language models for entity extraction, text classification, and structured data extraction. GLiNER models power over 1.1 billion end users daily, with over 1.1 million monthly downloads and 2,400+ GitHub stars. The flagship model, GLiNER2, is a 205M-parameter CPU-first encoder that performs entity extraction, text classification, and structured data extraction in a single forward pass. GLiNER2 closely matches GPT-4o on NER benchmarks (F1 0.590 vs 0.599) while running 2.6x faster on standard CPU hardware.

## Research

Fastino publishes technical research on small language models. Research blog: https://fastino.ai/blog

Key research:
- GLiNER2: efficient multi-task information extraction with schema-driven interface
- AdaptFT-Bench: a new benchmark for evaluating autonomous model improvement under realistic production conditions

## Traction

- 1,100,000+ monthly downloads
- 2,400+ GitHub stars
- 1.1 billion+ end users
- Trusted by leading AI teams building production AI

## Why small language models matter

Small language models are optimized for agentic workflows requiring numerous low-latency models specialized for specific tasks — model routing, tool calling, intent classification, response validation, and structured data extraction. Fine-tuned SLMs can match or outperform frontier models like GPT-4o on specific tasks at a fraction of the cost and latency. Fastino's mission is to make specialized small model fine-tuning accessible to every developer.

## Pages

- Company homepage: https://fastino.ai
- Research blog: https://fastino.ai/blog
- Pioneer platform: https://pioneer.ai
- GLiNER models: https://gliner.ai
- GLiNER2 GitHub: https://github.com/fastino-ai/GLiNER2
- Careers: https://jobs.ashbyhq.com/fastino-ai

## Contact & community

- LinkedIn: https://www.linkedin.com/company/fastinoai/
- X/Twitter: https://x.com/fastinoAI
- Discord: https://discord.com/invite/fastino
- YouTube: https://www.youtube.com/@Pioneer-agent
- Reddit (GLiNER community): https://www.reddit.com/r/GLiNER/
- Support: support@fastino.ai