Elyza vs ModelBest

Neither company has publicly disclosed a valuation, making a definitive size comparison difficult. Elyza employs 1-50 people, while ModelBest has 1-50 employees.

Elyza has raised $30M in disclosed funding across 0 known rounds. ModelBest's funding history is not publicly available.

Elyza holds the higher Awaira Score at 45/100, compared to ModelBest's 30/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 15-point gap that reflects meaningful differences in scale or traction.

Elyza was founded by Tetsuya Yamada in 2019. ModelBest was founded by Han Xianpeng in 2020. Visit each company's profile on Awaira for a full founder biography.

Elyza: Elyza developed Japanese large language models and enterprise AI applications, building on top of open-source models including Llama to create fine-tuned Japanese language variants with high Japanese language quality, and offering enterprise AI services using its Japanese LLM capabilities for customer service, document processing, and content generation applications. The Tokyo company focused on the specific characteristics of Japanese language including script mixing, honorific speech levels, and domain-specific vocabulary.\n\nThe company raised approximately $30 million in venture funding before being acquired by KDDI, the Japanese telecommunications operator, in 2024. The acquisition gave KDDI an in-house Japanese AI capability to deploy across its telecommunications services and enterprise AI offerings for KDDI business customers, as Japanese telecoms operators compete to add AI features to their enterprise service portfolios.\n\nElyza operated in the Japanese LLM market alongside CyberAgent AI Lab, NTT AI research, and the open-source Japanese AI community centred around the National Institute of Informatics. The acquisition by KDDI reflects the pattern of large Japanese corporations acquiring AI startups to accelerate internal AI capability development rather than building Japanese-language AI expertise from scratch. Japanese LLM development requires significant training data in Japanese and expertise in Japanese language evaluation that international foundation model providers building Japanese language versions of their models must develop separately. 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.

Elyza was founded first in 2019, giving it 1 year 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.

Both Elyza and ModelBest report similar employee counts of approximately 1-50. Team size is often a proxy for operational scale, though lean AI companies can punch well above their headcount.

Yes, Elyza 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.