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| Vendor | OSS | License | Dev Lang | VSS Launch | Filters | Hybrid Search | Facets | Geo Search | Multi-Vector | Sparse | BM25 | Full-Text | Text Model | Image Model | Struct Model | RAG | RecSys | LangChain | LlamaIndex | Managed | Pricing | In-process | Multi-Tenant | Disk Index | Ephemeral Index | Sharding | Document Size | Vector Dims | Int8 Quantization | Binary Quantization | Index Types | GitHub ⭐ | Docker Pulls | PyPi Downloads | NPM Downloads | Rust Crates Downloads |
| ✔ | MPL 2.0 | pythonc++ | 2023 | ✔ | ✔ | — | ✕ | ✔ | ◐ | ✔ | ✔ | ◐ | ◐ | — | — | — | ✔ | ✔ | ✔ | Free 200GB, then $100 per month per 30M embeddings (200GB) | ✔ | ✔ | ✔ | — | ◐ | Unlimited | Unlimited | — | ◐ | HNSW | 9.2K | — | 730.9K | — | — | |
| ✕ | Proprietary | kotlin | 2024 | ✕ | ✕ | ✕ | ✕ | ✔ | ✕ | ✕ | ✕ | ✕ | ✕ | — | — | — | ✔ | ✕ | ✔ | — | ✕ | — | ✕ | — | ✕ | Unlimited | Unlimited | ✕ | ✕ | HNSW | — | — | 764 | — | — | |
| ✕ | Proprietary | — | 2023 | — | ✕ | — | ✕ | — | — | ✕ | — | — | — | — | — | — | ✕ | ✕ | ✔ | — | — | — | — | ✕ | — | Unlimited | — | — | — | Proprietary | — | — | — | 611 | — | |
| ✔ | Apache-2.0 | java | 2023 | ✔ | ✔ | — | — | — | ✕ | — | ✕ | — | — | — | — | — | — | — | — | — | ✕ | ✔ | ✔ | — | — | — | Unlimited | — | — | FLATHNSW | 9.8K | 255.5M | 24.7M | 2.8M | 30 | |
| ✔ | Apache 2.0 | javac++ | 2025 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | ✔ | — | HNSWIVFFLAT | 47.9K | — | — | — | — | |
| ✔ | Apache-2.0 | java | 2022 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✕ | ✕ | — | ✕ | ✔ | — | ✕ | ✔ | — | ◐ | ✔ | — | ✕ | ✔ | Unlimited | Unlimited | — | — | FLATHNSW | 1.6K | 353.4M | 1.0M | 81.4K | 6 | |
| ◐ | Proprietary | c++ | 2021 | ✔ | — | ✔ | — | ◐ | — | — | — | ✔ | ✔ | — | — | — | ✔ | ◐ | ✔ | Instance-based hourly (cloud) or annual (VPC) pricing with free trial | ✕ | — | — | ◐ | ◐ | Unlimited | Unlimited | — | — | HNSWFLATIVF | — | — | 26.7K | 4.2K | — | |
| ✕ | Proprietary | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ◐ | — | ✔ | ✕ | ✔ | ✔ | ✔ | Pricing - Azure Cognitive Search | ✕ | ✔ | ✕ | ✕ | ✔ | 16,000,000 | 4,096 | ✔ | ✔ | FLATHNSW | — | — | 10.8M | 3.5M | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | — | ✕ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | ✔ | ✔ | ✔ | Chroma Pricing ($5 free credit) | ✔ | ✔ | ✔ | ✔ | ✔ | — | Unlimited | — | — | HNSWSPANN | 28.3K | 1.0M | 41.0M | 2.4M | 5.1K | |
| ✔ | Apache 2.0 | c++ | 2022 | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | ◐ | ◐ | — | ✕ | ✕ | ✔ | ✔ | ✔ | Clickhouse Pricing | ◐ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | — | — | HNSW | 47.9K | — | 6.8K | 20.3M | 1.6M | |
| ◐ | Proprietary | c++erlang | 2024 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | — | ✔ | ✔ | ✔ | Couchbase Pricing | — | ✔ | ✔ | ✔ | ✔ | 20,000,000 | 4,096 | ✔ | — | — | 1.7K | 89.7M | 2.7M | 834.5K | 5.3K | |
| ✔ | Apache 2.0 | java | 2023 | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | — | — | — | — | — | ✔ | — | ✔ | CrateDB Pricing https://console.cratedb.cloud/ | — | ✔ | ✔ | — | ✔ | — | 2,048 | — | — | FLATHNSW | 4.4K | 19.8M | 272.9K | 23.7K | 15 | |
| ✕ | Proprietary | — | 2024 | ✔ | ✔ | ✕ | ✕ | ✕ | ✕ | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | ✔ | ✔ | ✔ | ✔ | full | ✕ | ✔ | ◐ | ✕ | ✔ | 32,768 | 4,096 | — | — | HNSW | — | — | — | — | — | |
| ✕ | Proprietary | javago | 2023 | ✔ | ✔ | ✔ | ✔ | ✕ | ✕ | ✕ | ✔ | ✔ | ✕ | — | ✔ | — | ✔ | ✔ | ✔ | https://www.datastax.com/pricing/astra-db | ✕ | ✔ | ✔ | ✔ | ✔ | 250,000,000 | 8,192 | — | — | FLATHNSWFreshDiskANN | — | — | 1.6M | 652.0K | — | |
| ✕ | Elastic v2 | java | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | — | ✔ | 100,000,000 | 4,096 | ✔ | ✔ | FLATHNSWHNSW-BQ | 76.9K | 958.7M | 159.7M | 25.4M | 2.0M | |
| ✔ | GPL-3.0 | c++ | 2023 | ✔ | ✔ | — | — | ✔ | ✔ | — | — | ✔ | — | — | ✔ | — | ✔ | ✔ | ✔ | Storage: $0.025 / GB / month
Compute: $0.0125 / CU / hour
1CU = 0.125vCPU 512MB RAM
Traffic: $0.03 / GB https://epsilla.com/pricing | ✕ | ✔ | — | — | ✔ | Unlimited | Unlimited | — | — | Proprietary | 875 | — | 6.6K | — | — | |
| ✕ | — | — | 2021 | ✔ | ✕ | — | — | ✕ | ✕ | ✕ | ✕ | ✕ | — | — | — | — | ✔ | ✕ | ✔ | — | ✕ | — | — | — | — | — | Unlimited | — | — | Tree-AH | — | — | — | — | — | |
| ✕ | Proprietary | pythonjava | 2023 | ✔ | ✔ | ◐ | ✔ | ✔ | — | ✕ | ◐ | ✕ | ✕ | — | — | — | — | — | ✔ | Per usage | ✔ | ✕ | — | — | — | 100,000,000 | 8,192 | — | — | — | — | — | — | — | — | |
| ✕ | Proprietary | python | 2023 | ✔ | ✔ | ◐ | — | — | ✔ | ✔ | — | — | — | — | — | — | ✔ | ✔ | ✔ | Cloud = Free: 4 GB memory per instance, 30 GB data storage, OnPrem = 90-day trial, contact sales | ✕ | — | ◐ | — | — | Unlimited | Unlimited | — | — | FLATIVFIVF-PQHNSW | — | — | 14.4K | — | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | — | ✕ | — | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✔ | ✕ | ✔ | — | — | — | 2,048 | — | — | FLATIVF-PQ | 10.5K | — | 21.3M | 305.1K | 119.8K | |
| ✔ | Apache-2.0 | python | 2022 | ✔ | ✔ | — | — | ✔ | ✕ | ✔ | ✕ | ✔ | ✔ | — | — | — | ✔ | ✕ | ✔ | Pricing - Marqo Cloud | ✕ | — | — | — | — | — | — | — | — | HNSW | 5.0K | — | 268.1K | 69 | — | |
| ✔ | MIT | rust | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ◐ | ✔ | ✔ | ✕ | — | — | — | ✔ | ✕ | ✔ | Meilisearch Pricing | ✕ | ✔ | ✔ | ✕ | ✕ | Unlimited | Unlimited | — | — | — | 58.0K | — | 2.0M | 5.0M | — | |
| ✔ | Apache-2.0 | goc++ | 2019 | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | Zilliz Cloud | ✕ | ✔ | ✔ | — | ✔ | Unlimited | Unlimited | ◐ | ◐ | FLATHNSWANNOYIVFIVF-PQIVF-BQIVF-SQSCANNDiskANNGPU Index | 44.7K | — | 25.7M | 2.2M | 129 | |
| ✕ | SSPLv1 | c++java | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | — | — | — | — | ✔ | ✔ | ✔ | MongoDB Pricing | ✕ | ✔ | ✔ | ✕ | ✔ | 16,000,000 | 8,192 | ✔ | ✔ | FLATHNSW | — | 4772.9M | 1.9K | 699.0K | — | |
| ✔ | Apache-2.0 | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | ✕ | ✕ | ✕ | ✔ | ✔ | ✔ | MyScale Pricing | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | — | — | — | FLATMSTGIVFIVF-PQIVF-SQSCANNHNSW | 1.0K | 59.0K | 774 | — | — | |
| ✕ | Proprietary | javascala | 2023 | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | ✕ | ✔ | ✕ | ✕ | ◐ | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✕ | ✕ | ✕ | Unlimited | 2,048 | — | — | HNSW | — | 314.0M | 31.0M | 11.8K | 31.1K | |
| ✔ | AGPL-3.0 | rustpython | 2021 | ✔ | ✔ | ✔ | ✕ | — | ✕ | ✔ | ✔ | — | — | — | ✔ | ✕ | ✔ | ✕ | ✔ | — | ✕ | — | ✔ | ✕ | ✔ | — | Unlimited | — | — | HNSW | 716 | — | 201.8K | 1.7K | — | |
| ✔ | Apache-2.0 | java | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ◐ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | — | ✔ | 100,000,000 | 10,000 | ✔ | ✔ | FLATHNSW | 13.1K | 179.3M | 22.1K | 16.6M | 648.8K | |
| ✔ | Apache-2.0 | typescript | 2022 | ✔ | ✕ | ✔ | ✔ | ✕ | ✕ | ✔ | ✔ | ✔ | — | — | — | — | ✕ | ✕ | ✔ | free plan / $4.99 per month (pro) | ✔ | ✔ | ✔ | ✔ | — | — | Unlimited | — | — | — | 10.4K | — | — | 7.7M | — | |
| ✔ | AGPL-3.0 | rust | 2023 | ✔ | ✔ | — | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | — | — | — | — | — | — | — | — | — | ✔ | ✔ | — | ✕ | — | 2,000 | — | — | FLATIVFHNSW | 8.9K | 1.4M | — | — | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | ◐ | ✔ | ✔ | ◐ | ✔ | — | — | — | — | — | ✔ | ✔ | — | — | ✕ | ✔ | — | — | ✕ | Unlimited | 65,535 | ✔ | ✔ | FLATIVFHNSW | 2.2K | 20.8M | 365.4K | — | — | |
| ✔ | PostgreSQL | c | 2021 | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | — | ✕ | ✕ | — | 2,000 | — | — | FLATIVFHNSW | 21.7K | — | 66.2M | 4.0M | 3.4M | |
| ✔ | PostgreSQL | rust | 2023 | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | Timescale Cloud | ✕ | ✔ | ✔ | ✕ | ✕ | — | 16,000 | — | — | DiskANNFreshDiskANN | 3.0K | — | — | — | — | |
| ✕ | Proprietary | rust | 2019 | ✔ | ✔ | ✕ | ✕ | ✕ | ✔ | ✕ | ◐ | ✔ | ✕ | — | ✔ | ✔ | ✔ | ✔ | ✔ | full | ✕ | ✔ | ✔ | ✔ | ✔ | 40,000 | 20,000 | — | — | Proprietary | — | — | 25.9M | 6.9M | 241 | |
| ✔ | Apache-2.0 | rust | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | Qdrant Pricing (free tier available) | ◐ | ✔ | ✔ | ✔ | ✔ | Unlimited | 65,536 | ◐ | ◐ | FLATHNSWHNSW-PQHNSW-SQHNSW-BQ | 31.9K | 32.8M | 65.3M | 551.3K | 359.2K | |
| ✔ | AGPL-3.0 / SSPLv1 | c | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✕ | ✔ | ✔ | — | Unlimited | — | — | FLATHNSWSVS-VAMANA | 74.7K | 10786.9M | 68.9K | 90.8M | — | |
| ✕ | Proprietary | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✕ | ✕ | ✕ | ✔ | ◐ | ◐ | ✕ | ✕ | ✕ | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | 41,943,040 | Unlimited | — | — | FAISS-IVF | — | — | 492.0K | 767 | — | |
| ✕ | Proprietary | c++go | 2017 | ✔ | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | ✔ | ✕ | ✕ | ✕ | ✕ | ✕ | ✔ | ◐ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | — | — | FLATIVFHNSW | — | 725.4K | 1.7M | 35 | — | |
| ✕ | Proprietary | rusttypescriptpython | 2024 | ✔ | ✔ | — | — | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | — | — | ✔ | Send us an email | — | ✔ | ✔ | — | ✔ | Unlimited | Unlimited | — | — | Proprietary | 73 | — | 278.9K | 2.0K | — | |
| ✕ | Proprietary | rust | 2023 | ✔ | ◐ | ✕ | ✕ | ✕ | ✕ | ✔ | ✔ | ✕ | ✕ | — | — | ✕ | ✕ | ✕ | ✔ | $1/million vecs, $4/million queries | ✕ | ✔ | — | ✕ | ✔ | 65,536 | 10,752 | — | — | SPANN | — | — | 11.9M | 4.3M | — | |
| ✔ | Apache-2.0 | python | 2020 | ✔ | ✔ | — | — | ✔ | ✕ | ✔ | — | ✔ | ✔ | — | ✔ | — | — | — | — | — | ✔ | — | ◐ | ✔ | ✔ | Unlimited | Unlimited | — | — | FLATFAISSHNSWANNOY | 12.6K | — | 136.7K | 918 | 66 | |
| ✔ | GPL-3.0 | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✔ | — | — | — | ✔ | — | ✔ | Pricing | Typesense Cloud | ✕ | ✔ | ✕ | ✕ | — | Unlimited | Unlimited | — | — | FLATHNSW | 26.0K | — | 2.3M | 7.1M | — | |
| ✔ | Apache-2.0 | c++ | 2023 | ◐ | — | ✕ | ✔ | ✔ | — | ✕ | ◐ | ◐ | ◐ | — | — | — | ✔ | ✔ | ✕ | none | ✔ | ✕ | ✔ | — | ✕ | Unlimited | Unlimited | ✔ | ✔ | FLATHNSWHNSW-BQ | 4.1K | — | 1.6M | 188.5K | 172.3K | |
| ✔ | Apache-2.0 | go | 2021 | — | — | — | — | — | ✕ | — | ✕ | — | — | — | — | — | ✔ | ✕ | ✕ | — | ✕ | — | — | — | — | — | Unlimited | — | — | FAISSNGT | 1.7K | — | 7.4K | 744 | — | |
| ✕ | Proprietary | — | 2021 | ✔ | ✔ | — | — | — | ✕ | ✔ | ✕ | ✕ | — | — | ✔ | — | ✔ | ✔ | ✔ | Pricing - Vectara | ✕ | ✔ | ✔ | — | — | 52,428,800 | — | — | — | — | — | 13.0K | — | 2.0K | — | |
| ✔ | Apache-2.0 | javac++ | 2017 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ◐ | ◐ | ✔ | ✔ | ✔ | ✔ | ✔ | https://cloud.vespa.ai/price-calculator | ✕ | — | ✔ | — | ✔ | Unlimited | Unlimited | ✔ | ✔ | FLATHNSWHNSW-BQSPANN | 7.0K | 14.4M | 10.1M | — | — | |
| ✔ | BSD | go | 2019 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✕ | ✔ | Unlimited | 65,535 | — | ◐ | FLATFLAT-BQHNSWHNSW-PQHNSW-BQ | 16.3K | 18.1M | 329.7M | 5.2M | 120 | |
