Milvus leads in popularity with 45,368 stars vs 16,646 stars for Weaviate. The 173% higher star count indicates stronger community adoption. In terms of developer contributions, Milvus has 4,137 forks, indicating strong developer engagement.

Both projects show recent activity, with Milvus last updated 8 hours ago and Weaviate 10 hours ago.

Both tools share common technology foundations, being built with JavaScript, Bash, Python, Golang, C. However, they differ in their additional technology choices: Milvus uses CSS, Rust, Objective-C, C++.

Weaviate has been in development longer, starting 10 years ago, compared to Milvus which began 7 years ago. This 3.5-year head start suggests Weaviate may have more mature features and established processes.

Weaviate uses the BSD-3-Clause license, which is more permissive than Milvus's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Both tools serve similar use cases in Vector Databases.

Weaviate provides self-hosting options for complete data control and customization, while Milvus may be primarily cloud-based or require different deployment approaches.