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DiskANN Alternatives
Similar projects and alternatives to DiskANN
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Redis
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
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Milvus
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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TimescaleDB
A time-series database for high-performance real-time analytics packaged as a Postgres extension
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nodejs-pubsub
Node.js client for Google Cloud Pub/Sub: Ingest event streams from anywhere, at any scale, for simple, reliable, real-time stream analytics.
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pgai
A suite of tools to develop RAG, semantic search, and other AI applications more easily with PostgreSQL
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pgvectorscale
A complement to pgvector for high performance, cost efficient vector search on large workloads.
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pgaidocs
Discontinued [GET https://api.github.com/repos/timescale/pgaidocs: 404 - Not Found // See: https://docs.github.com/rest/repos/repos#get-a-repository]
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better DiskANN alternative or higher similarity.
DiskANN discussion
DiskANN reviews and mentions
Posts with mentions or reviews of DiskANN.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-05-28.
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Unpacking DiskANN: My Technical Journey Through Billion-Scale Vector Search
What happens when vector datasets exceed what RAM can handle? This question drove my investigation into DiskANN – an SSD-optimized approach for massive-scale similarity search. Unlike traditional methods like HNSW that hit scalability ceilings around 100M vectors, DiskANN achieves billion-scale indexing by strategically leveraging disk storage. I’ll share how it balances latency, recall, and cost through architectural innovations.
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Pushing Billion-Scale Vector Search Beyond RAM Limits with DiskANN
The Memory Wall Problem Most vector indexes prioritize RAM for low latency. HNSW, for example, achieves 95% recall at <5ms for 100M vectors but requires ~500GB RAM. At 1B vectors, RAM costs exceed $10k/month on cloud instances—prohibitively expensive for many teams. DiskANN flips this model:
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PostgreSQL Maximalism
Learns from Microsoft's DiskANN: "Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search"
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Join us for the Open Source AI Challenge with pgai and Ollama: $3,000 in Prizes!
A new index type called StreamingDiskANN, inspired by the DiskANN algorithm, based on research from Microsoft.
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DiskANN Implementation in Rust + Easy NN Search
Hi! I have been noodling away at a re-implementation of the original C++ DiskANN project as well as packaging the latest advances in embedding generation. The rough repo is here and will remain licensed as Apache-2.0!
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Pinecone raises $100M Series B
Spot on. There is zero moat and the self-hosted alternatives are rapidly improving (if not better) than Pinecone. There are good open-source contributions coming from bigcorp beyond Meta too, e.g., DiskANN (https://github.com/microsoft/DiskANN).
- SSD-Based Vector Indices
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A note from our sponsor - Stream
getstream.io | 14 Jul 2025
Stats
Basic DiskANN repo stats
7
1,398
5.0
7 days ago
microsoft/DiskANN is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of DiskANN is C++.
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com