AI21 Labs vs ModelBest

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

AI21 Labs has raised $636M in disclosed funding across 9 known rounds. ModelBest's funding history is not publicly available.

AI21 Labs holds the higher Awaira Score at 72/100, compared to ModelBest's 30/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 42-point gap that reflects meaningful differences in scale or traction.

AI21 Labs was founded by Yoav Shoham in 2017. ModelBest was founded by Han Xianpeng in 2020. 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. ModelBest: ModelBest is an early-stage Chinese foundation model company focused on developing efficient large language models for enterprise deployment, pursuing model architecture research aimed at improving inference efficiency and reducing the compute requirements for Chinese-language LLM applications. The Beijing company targets enterprise clients seeking to deploy private LLM capabilities without the infrastructure costs associated with the largest-scale foundation models.\n\nThe company is seed stage with backing from Chinese technology investors. ModelBest participates in the Chinese foundation model ecosystem by focusing on efficient model architectures that enable deployment in resource-constrained enterprise environments, a differentiated approach compared to the scale-first strategy pursued by better-funded Chinese foundation model competitors.\n\nModelBest operates in a challenging competitive environment where Chinese foundation model startups are competing against the AI divisions of Alibaba, Baidu, and ByteDance and against each other for enterprise customers and funding. The efficient inference positioning aligns with a genuine enterprise need for LLM capabilities that can run on private infrastructure without hyperscale GPU clusters, a requirement particularly relevant for industries with strict data localisation requirements such as banking and government. The company early stage reflects the rapid proliferation of Chinese AI startups following the generative AI wave of 2023.

AI21 Labs was founded first in 2017, giving it 3 years of additional market experience. ModelBest was founded later in 2020. In AI, even a year or two of head start can translate into significantly more training data, customer relationships, and institutional knowledge.

AI21 Labs has approximately 250 employees, while ModelBest has approximately 1-50. 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 ModelBest 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.