Milvus vs SingleStore Helios
Milvus
milvus.ioSingleStore Helios
singlestore.comSide by side
| Figure | Milvus | SingleStore Helios |
|---|---|---|
| Price from | Free | $0.99/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 6 |
| Spec score · Ai Databases | 8.3 (#8) | 8.9 (#4) |
| Spec score · Database Software | 8.2 (#39) | 9.3 (#3) |
| Free plan | Yes | Yes |
| Integrations | The integrations documentation lists tools including LangChain, LlamaIndex, Haystack, DSPy, Dify, Langflow, OpenAI, Cohere, and HuggingFace. | Listed integrations include AWS Glue, Apache Beam, Apache Flink, Apache Spark, Azure Data Factory, Azure Event Hubs, Confluent Kafka, Fivetran, Informatica, Qlik, Tableau Prep, dbt, Datadog, New Relic and Terraform. |
| Product | Milvus is an open-source vector database built for GenAI applications. | SingleStore Helios is a cloud database-as-a-service available on leading public clouds. |
| Security | Milvus documents user authentication, TLS encryption for gRPC and REST traffic, and role-based access control. | SingleStore describes security across application security, cloud security, corporate IT security, and governance, risk, and compliance. |
| Support | The Milvus site lists community channels including Slack, Discord, GitHub, and Milvus Office Hours. | Paid Helios subscriptions include Standard support, with Silver and Platinum tiers offering faster response targets and expanded coverage. |
| What it does | Milvus is an open-source vector database developed by Zilliz for high-performance, scalable vector search. | SingleStore Helios is a managed distributed SQL database combining transactional, analytical, JSON, full-text, vector, time-series and geospatial workloads. |
Plans
SingleStore Helios
- SharedFree
- Standard$0.99 a month
- Enterprise$1.49 a month
- StandardPriced on request
- EnterprisePriced on request
- BYOC StandardPriced on request
In their own words
Milvus
Milvus is an open-source vector database from Zilliz for GenAI and scalable vector search. It supports approximate-nearest-neighbor, filtered, range, hybrid, and full-text search, along with reranking, fetch, and query operations. Metadata filtering, sparse vectors, and index types including HNSW, IVF, FLAT, DiskANN, and SCANN are documented. Deployment choices are Milvus Lite as a Python library, Standalone as a single-machine server, and Distributed on Kubernetes. Documentation recommends Lite for up to a few million vectors, Standalone up to 100 million, and Distributed for 100 million to tens of billions. Lite can run locally without a cloud service for private or sensitive data; an online upgrade from Standalone to a cluster is not currently supported. Official interfaces include REST plus Python, Go, Java, Node.js, and C++ APIs or SDKs. C# is contributed by Microsoft and Rust is under development. Security documentation covers authentication, TLS for gRPC and REST, and role-based access control at collection, database, and instance levels. The Apache 2.0 software is free, and Zilliz Cloud is offered as a managed option.
SingleStore Helios
SingleStore Helios is a cloud database service available on AWS, Google Cloud, and Microsoft Azure. It handles transactional and analytical workloads in one database, with storage and compute scaled independently. Its data capabilities include relational records, JSON/BSON documents, vector and full-text search, time-series, geospatial, and key-value data. SingleStore Pipelines can ingest from sources such as Kafka, Amazon S3, and HDFS. For AI workloads, the service includes Jupyter notebooks, data integration services, and a compute service. Listed integrations include Datadog, Terraform, Apache Spark, AWS Glue, Azure Data Factory, dbt, and Fivetran. Helios is available through web and API platforms. The free Shared plan provides one workspace for evaluation, development, and non-production testing, with self-support. Standard is $0.99 a month for managed production workloads, with read replicas, database branching, 30-day monitoring, and support. Enterprise is $1.49 a month and adds online point-in-time recovery, Smart Disaster Recovery, audit logging, and customer-managed encryption keys. The listed availability commitments vary by configuration, reaching 99.99% across two availability zones on paid plans.