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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 | 9.1K | — | 707.7K | — | — | |
| ✕ | Proprietary | kotlin | 2024 | ✕ | ✕ | ✕ | ✕ | ✔ | ✕ | ✕ | ✕ | ✕ | ✕ | — | — | — | ✔ | ✕ | ✔ | — | ✕ | — | ✕ | — | ✕ | Unlimited | Unlimited | ✕ | ✕ | HNSW | — | — | 424 | — | — | |
| ✕ | Proprietary | — | 2023 | — | ✕ | — | ✕ | — | — | ✕ | — | — | — | — | — | — | ✕ | ✕ | ✔ | — | — | — | — | ✕ | — | Unlimited | — | — | — | Proprietary | — | — | — | 321 | — | |
| ✔ | Apache-2.0 | java | 2023 | ✔ | ✔ | — | — | — | ✕ | — | ✕ | — | — | — | — | — | — | — | — | — | ✕ | ✔ | ✔ | — | — | — | Unlimited | — | — | FLATHNSW | 9.7K | 252.1M | 22.2M | 2.6M | 18 | |
| ✔ | Apache 2.0 | javac++ | 2025 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | ✔ | — | HNSWIVFFLAT | 47.2K | — | — | — | — | |
| ✔ | Apache-2.0 | java | 2022 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✕ | ✕ | — | ✕ | ✔ | — | ✕ | ✔ | — | ◐ | ✔ | — | ✕ | ✔ | Unlimited | Unlimited | — | — | FLATHNSW | 1.6K | 352.6M | 1.0M | 70.5K | 6 | |
| ◐ | Proprietary | c++ | 2021 | ✔ | — | ✔ | — | ◐ | — | — | — | ✔ | ✔ | — | — | — | ✔ | ◐ | ✔ | Instance-based hourly (cloud) or annual (VPC) pricing with free trial | ✕ | — | — | ◐ | ◐ | Unlimited | Unlimited | — | — | HNSWFLATIVF | — | — | 25.9K | 4.2K | — | |
| ✕ | Proprietary | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ◐ | — | ✔ | ✕ | ✔ | ✔ | ✔ | Pricing - Azure Cognitive Search | ✕ | ✔ | ✕ | ✕ | ✔ | 16,000,000 | 4,096 | ✔ | ✔ | FLATHNSW | — | — | 10.6M | 3.3M | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | — | ✕ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | ✔ | ✔ | ✔ | Chroma Pricing ($5 free credit) | ✔ | ✔ | ✔ | ✔ | ✔ | — | Unlimited | — | — | HNSWSPANN | 27.8K | 1.0M | 39.6M | 909.7K | 5.3K | |
| ✔ | Apache 2.0 | c++ | 2022 | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | ◐ | ◐ | — | ✕ | ✕ | ✔ | ✔ | ✔ | Clickhouse Pricing | ◐ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | — | — | HNSW | 47.2K | — | 6.6K | 18.3M | 1.6M | |
| ◐ | Proprietary | c++erlang | 2024 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | — | ✔ | ✔ | ✔ | Couchbase Pricing | — | ✔ | ✔ | ✔ | ✔ | 20,000,000 | 4,096 | ✔ | — | — | 1.7K | 89.5M | 2.5M | 824.8K | 5.1K | |
| ✔ | Apache 2.0 | java | 2023 | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | — | — | — | — | — | ✔ | — | ✔ | CrateDB Pricing https://console.cratedb.cloud/ | — | ✔ | ✔ | — | ✔ | — | 2,048 | — | — | FLATHNSW | 4.4K | 19.7M | 305.2K | 17.5K | 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 | 344.3K | — | |
| ✕ | Elastic v2 | java | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | — | ✔ | 100,000,000 | 4,096 | ✔ | ✔ | FLATHNSWHNSW-BQ | 76.6K | 952.5M | 155.6M | 24.3M | 2.2M | |
| ✔ | 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 | 873 | — | 6.9K | — | — | |
| ✕ | — | — | 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 | — | — | 24.5K | — | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | — | ✕ | — | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | — | ✔ | ✕ | ✔ | — | — | — | 2,048 | — | — | FLATIVF-PQ | 10.2K | — | 17.5M | 112.1K | 96.1K | |
| ✔ | Apache-2.0 | python | 2022 | ✔ | ✔ | — | — | ✔ | ✕ | ✔ | ✕ | ✔ | ✔ | — | — | — | ✔ | ✕ | ✔ | Pricing - Marqo Cloud | ✕ | — | — | — | — | — | — | — | — | HNSW | 5.0K | — | 384.5K | 86 | — | |
| ✔ | MIT | rust | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ◐ | ✔ | ✔ | ✕ | — | — | — | ✔ | ✕ | ✔ | Meilisearch Pricing | ✕ | ✔ | ✔ | ✕ | ✕ | Unlimited | Unlimited | — | — | — | 57.4K | — | 2.2M | 4.2M | — | |
| ✔ | Apache-2.0 | goc++ | 2019 | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | ✔ | ✔ | ✔ | Zilliz Cloud | ✕ | ✔ | ✔ | — | ✔ | Unlimited | Unlimited | ◐ | ◐ | FLATHNSWANNOYIVFIVF-PQIVF-BQIVF-SQSCANNDiskANNGPU Index | 44.1K | — | 41.1M | 2.0M | 141 | |
| ✕ | SSPLv1 | c++java | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | — | — | — | — | ✔ | ✔ | ✔ | MongoDB Pricing | ✕ | ✔ | ✔ | ✕ | ✔ | 16,000,000 | 8,192 | ✔ | ✔ | FLATHNSW | — | 4747.6M | 2.1K | 401.4K | — | |
| ✔ | Apache-2.0 | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | ✕ | ✕ | ✕ | ✔ | ✔ | ✔ | MyScale Pricing | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | — | — | — | FLATMSTGIVFIVF-PQIVF-SQSCANNHNSW | 1.0K | 59.0K | 675 | — | — | |
| ✕ | Proprietary | javascala | 2023 | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | ✕ | ✔ | ✕ | ✕ | ◐ | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✕ | ✕ | ✕ | Unlimited | 2,048 | — | — | HNSW | — | 311.2M | 27.3M | 11.8K | 27.8K | |
| ✔ | AGPL-3.0 | rustpython | 2021 | ✔ | ✔ | ✔ | ✕ | — | ✕ | ✔ | ✔ | — | — | — | ✔ | ✕ | ✔ | ✕ | ✔ | — | ✕ | — | ✔ | ✕ | ✔ | — | Unlimited | — | — | HNSW | 720 | — | 188.2K | 1.7K | — | |
| ✔ | Apache-2.0 | java | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ◐ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | — | ✔ | 100,000,000 | 10,000 | ✔ | ✔ | FLATHNSW | 12.9K | 171.0M | 23.5K | 14.7M | 592.8K | |
| ✔ | Apache-2.0 | typescript | 2022 | ✔ | ✕ | ✔ | ✔ | ✕ | ✕ | ✔ | ✔ | ✔ | — | — | — | — | ✕ | ✕ | ✔ | free plan / $4.99 per month (pro) | ✔ | ✔ | ✔ | ✔ | — | — | Unlimited | — | — | — | 10.3K | — | — | 6.1M | — | |
| ✔ | AGPL-3.0 | rust | 2023 | ✔ | ✔ | — | ✔ | ✕ | ✔ | ✔ | ✔ | ✕ | — | — | — | — | — | — | — | — | — | ✔ | ✔ | — | ✕ | — | 2,000 | — | — | FLATIVFHNSW | 8.7K | 1.1M | — | — | — | |
| ✔ | Apache-2.0 | rust | 2023 | ✔ | ✔ | — | ◐ | ✔ | ✔ | ◐ | ✔ | — | — | — | — | — | ✔ | ✔ | — | — | ✕ | ✔ | — | — | ✕ | Unlimited | 65,535 | ✔ | ✔ | FLATIVFHNSW | 2.2K | 20.2M | 314.7K | — | — | |
| ✔ | PostgreSQL | c | 2021 | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | — | ✕ | ✕ | — | 2,000 | — | — | FLATIVFHNSW | 21.1K | — | 54.4M | 1.6M | 3.6M | |
| ✔ | PostgreSQL | rust | 2023 | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | Timescale Cloud | ✕ | ✔ | ✔ | ✕ | ✕ | — | 16,000 | — | — | DiskANNFreshDiskANN | 3.0K | — | — | — | — | |
| ✕ | Proprietary | rust | 2019 | ✔ | ✔ | ✕ | ✕ | ✕ | ✔ | ✕ | ◐ | ✔ | ✕ | — | ✔ | ✔ | ✔ | ✔ | ✔ | full | ✕ | ✔ | ✔ | ✔ | ✔ | 40,000 | 20,000 | — | — | Proprietary | — | — | 38.8M | 6.8M | 248 | |
| ✔ | Apache-2.0 | rust | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✔ | ✔ | Qdrant Pricing (free tier available) | ◐ | ✔ | ✔ | ✔ | ✔ | Unlimited | 65,536 | ◐ | ◐ | FLATHNSWHNSW-PQHNSW-SQHNSW-BQ | 31.0K | 28.7M | 50.4M | 551.3K | 336.4K | |
| ✔ | AGPL-3.0 / SSPLv1 | c | 2021 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✕ | — | — | — | — | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✕ | ✔ | ✔ | — | Unlimited | — | — | FLATHNSWSVS-VAMANA | 74.1K | 10630.4M | 84.6K | 83.6M | — | |
| ✕ | Proprietary | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✕ | ✕ | ✕ | ✔ | ◐ | ◐ | ✕ | ✕ | ✕ | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | 41,943,040 | Unlimited | — | — | FAISS-IVF | — | — | 643.0K | 429 | — | |
| ✕ | Proprietary | c++go | 2017 | ✔ | ✔ | ✔ | ✔ | ✕ | ✕ | ✔ | ✔ | ✕ | ✕ | ✕ | ✕ | ✕ | ✔ | ◐ | ✔ | — | ✕ | ✔ | ✔ | ✕ | ✔ | Unlimited | Unlimited | — | — | FLATIVFHNSW | — | 722.3K | 1.8M | 17 | — | |
| ✕ | Proprietary | rusttypescriptpython | 2024 | ✔ | ✔ | — | — | ✔ | ✔ | ✔ | ✔ | ✔ | — | — | — | — | — | — | ✔ | Send us an email | — | ✔ | ✔ | — | ✔ | Unlimited | Unlimited | — | — | Proprietary | 69 | — | 227.2K | 1.5K | — | |
| ✕ | Proprietary | rust | 2023 | ✔ | ◐ | ✕ | ✕ | ✕ | ✕ | ✔ | ✔ | ✕ | ✕ | — | — | ✕ | ✕ | ✕ | ✔ | $1/million vecs, $4/million queries | ✕ | ✔ | — | ✕ | ✔ | 65,536 | 10,752 | — | — | SPANN | — | — | 8.6M | 3.8M | — | |
| ✔ | Apache-2.0 | python | 2020 | ✔ | ✔ | — | — | ✔ | ✕ | ✔ | — | ✔ | ✔ | — | ✔ | — | — | — | — | — | ✔ | — | ◐ | ✔ | ✔ | Unlimited | Unlimited | — | — | FLATFAISSHNSWANNOY | 12.5K | — | 137.2K | 524 | 59 | |
| ✔ | GPL-3.0 | c++ | 2023 | ✔ | ✔ | ✔ | ✔ | ✔ | — | ✕ | ✔ | ✔ | ✔ | — | — | — | ✔ | — | ✔ | Pricing | Typesense Cloud | ✕ | ✔ | ✕ | ✕ | — | Unlimited | Unlimited | — | — | FLATHNSW | 25.8K | — | 1.9M | 6.1M | — | |
| ✔ | Apache-2.0 | c++ | 2023 | ◐ | — | ✕ | ✔ | ✔ | — | ✕ | ◐ | ◐ | ◐ | — | — | — | ✔ | ✔ | ✕ | none | ✔ | ✕ | ✔ | — | ✕ | Unlimited | Unlimited | ✔ | ✔ | FLATHNSWHNSW-BQ | 4.1K | — | 1.3M | 162.3K | 156.9K | |
| ✔ | Apache-2.0 | go | 2021 | — | — | — | — | — | ✕ | — | ✕ | — | — | — | — | — | ✔ | ✕ | ✕ | — | ✕ | — | — | — | — | — | Unlimited | — | — | FAISSNGT | 1.7K | — | 7.6K | 664 | — | |
| ✕ | Proprietary | — | 2021 | ✔ | ✔ | — | — | — | ✕ | ✔ | ✕ | ✕ | — | — | ✔ | — | ✔ | ✔ | ✔ | Pricing - Vectara | ✕ | ✔ | ✔ | — | — | 52,428,800 | — | — | — | — | — | 12.8K | — | 1.8K | — | |
| ✔ | Apache-2.0 | javac++ | 2017 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ◐ | ◐ | ✔ | ✔ | ✔ | ✔ | ✔ | https://cloud.vespa.ai/price-calculator | ✕ | — | ✔ | — | ✔ | Unlimited | Unlimited | ✔ | ✔ | FLATHNSWHNSW-BQSPANN | 6.9K | 14.1M | 2.7M | — | — | |
| ✔ | BSD | go | 2019 | ✔ | ✔ | ✔ | ✔ | ✔ | ✕ | ✔ | ✔ | ✔ | ✔ | — | ✔ | — | ✔ | ✔ | ✔ | — | ✔ | ✔ | ✔ | ✕ | ✔ | Unlimited | 65,535 | — | ◐ | FLATFLAT-BQHNSWHNSW-PQHNSW-BQ | 16.1K | 17.1M | 195.4M | 5.8M | 75 | |
