AI21 Labs vs Silo AI

AI21 Labs has a disclosed valuation of $1.4B, while Silo AI's valuation is not publicly available, making a direct size comparison difficult. AI21 Labs employs 250 people.

AI21 Labs has raised more in total funding at $636M, compared to Silo AI's $60M — a gap of $576M. Combined, the two companies have completed 9 known funding rounds.

AI21 Labs holds the higher Awaira Score at 72/100, compared to Silo AI's 60/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 12-point gap that reflects meaningful differences in scale or traction.

AI21 Labs was founded by Yoav Shoham in 2017. Silo AI was founded by Peter Sarlin in 2017. Visit each company's profile on Awaira for a full founder biography.

AI21 Labs: AI21 Labs is an Israeli foundation model company founded in 2017 that develops large language models and AI systems for enterprise applications. The company is best known for its Jurassic language model family, which powers various natural language processing tasks including text generation, summarization, and question-answering. AI21 Labs operates through both direct API access and integration with cloud platforms, serving customers across multiple industries. The company has positioned itself in the competitive foundation models landscape alongside OpenAI, Anthropic, and other providers, distinguishing itself through a focus on instruction-following capabilities and multilingual support. AI21 Labs has secured $636 million in total funding and achieved a $1.4 billion valuation, reflecting investor confidence in its technology and market approach. The company operates primarily through its cloud-based AI platform, offering researchers and developers access to its models. It has demonstrated growth through partnerships and enterprise adoption, though facing intense competition in the rapidly consolidating foundation models sector. AI21 Labs remains in Series D funding stage, indicating it has not yet pursued initial public offering. The company employs researchers with backgrounds in academia and industry, maintaining focus on advancing core language model capabilities and exploring commercial applications across sectors including content generation, customer service, and information retrieval. AI21 Labs combines deep research in language models with enterprise-focused API infrastructure to compete against larger foundation model providers. Silo AI: Silo AI operated as a private European AI lab providing foundation model development, applied AI research, and AI product engineering services to enterprise clients across Europe, building custom AI systems and adapting open-source foundation models for domain-specific applications in manufacturing, healthcare, and financial services. The Helsinki company combined academic research partnerships with commercial AI deployment expertise.\n\nThe company raised approximately $60 million in venture funding before being acquired by AMD in July 2024 for approximately $665 million, one of the largest acquisitions of a European AI company. The acquisition gave AMD an AI software engineering team to develop AI software and tools optimised for AMD Instinct GPU hardware, addressing the critical software ecosystem gap that AMD faces in competing against NVIDIA CUDA in the AI training and inference market.\n\nSilo AI competed in the European AI services and research market alongside AI labs and consultancies, but its acquisition by AMD represented a strategic uplift from commercial AI services to chip ecosystem development. The acquisition price reflected AMD valuation of Silo AI engineering talent and AI model optimisation expertise rather than its revenue run rate, indicating the premium that semiconductor companies are willing to pay to close software ecosystem gaps against NVIDIA dominance. Post-acquisition, the Silo AI team focuses on optimising AI frameworks, model libraries, and developer tools for AMD AI accelerator hardware.

Both AI21 Labs and Silo AI were founded in the same year — 2017. Despite sharing a founding year, they may have launched at different times within that year, which can matter in fast-moving AI markets.

AI21 Labs has approximately 250 employees, while Silo AI has approximately 100-500. A larger team often signals higher revenue or venture backing, but in AI, smaller teams are increasingly capable of building at scale.

Yes, AI21 Labs and Silo AI are direct competitors — both operate in the Foundation Models space and likely target overlapping customer segments. This comparison is especially relevant for buyers evaluating both platforms.