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chroma-core
chroma
Rust2023–2026
chroma-core / chroma

chroma

Search infrastructure for AI

16Distinct people
20Mentions
0Explicit recommenders
29.7KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Search infrastructure for AI

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year20 dated mentions

Observed mentions: 2023-04-03 07:12:46 UTC to 2026-03-26 11:23:40 UTC.

024682023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 8 mentions; 2 submissions, 6 comments20232024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 4 mentions; 1 submissions, 3 comments20242025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 7 mentions; 0 submissions, 7 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC826
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC413
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC707
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

What Hacker News says

20 sources
Hi! Hammad here - Chroma’s CTO. First off, I have an immense amount of respect for the Turbopuffer team, they’ve build a solid product. I understand your point. Chroma Cloud has been quietly live in production for a year, and we have been discussing this architecture publicly for almost two years now. You can see this talk I gave at the CMU databases group - https://youtu.be/E4ot5d79jdA?si=i64ouoyFMevEgm3U. Some details have changed since then. But the core ideas remain the same. The business model similarities mostly fall out of our architecture being similar, which mostly falls out of our constraints with respect to the workload being the same. There are only so many ways you can deliver a usage based billing model that is fair, understandable, and predictable. We aimed for a billing model that was all three, and this is what we arrived
Read the rest
at. On aesthetics, that’s always been our aesthetic, I think a lot of developer tools are leaning into the nostalgia of the early PC boom during this AI boom (fun fact, all the icons on our homepage are done by hand!). On differences, we support optimized regexes vs full-scans, lending better performance. We also support trigram based full-text search which can often be useful for scenarios which need substring matches. We also support forking, which allows for cheap copy-on-write clones of your data, great for dataset versioning and tracking git repos with minimal cost. We've been building with support for generic sparse vectors (in beta) which enables techniques like SPLADE to be used, rather than just BM25. You can also run Chroma locally, enabling low-latency local workflows. This is great for AI apps where you need to iterate on a dataset until it passes evals, and then push it up to the cloud. Chroma is Apache 2.0 open source - https://github.com/chroma-core/chroma and has a massive developer community behind it. Customers can run embedded, single-node and distributed Chroma themselves. We've suffered from depending on closed-source database startups and wanted to give developers using Chroma confidence in the longevity of their choice. Lastly, we are building with AI workloads front and center and this changes what you build, how you build it and who you build for in the long term. We think search is changing and that the primary consumer of the search API for AI applications is shifting from human engineers, to language models. We are building some exciting things in this direction, more on that soon.
In Show HN: Chroma Cloud – serverless search database for AI
https://news.ycombinator.com/item?id=40115099 : > lancedb/lance is faster than pandas with dtype_backend="arrow" and has a vector index From https://github.com/lancedb/lance : > Modern columnar data format for ML and LLMs implemented in Rust. Convert from parquet in 2 lines of code for 100x faster random access, vector index, and data versioning. Compatible with Pandas, DuckDB, Polars, Pyarrow, > [...] Vector Search > Comparison of different data formats in each stage of ML development cycle: Lance, Parquet & ORC, JSON & XML, TFRecord, Database, Warehouse What can ChromaDB do that lancedb can't, and will either work in WASM? From https://github.com/chroma-core/chroma : > By default, Chroma uses Sentence Transformers to embed for you but you can also use OpenAI embeddings, Cohere (multilingual) embeddings, or your own.
In Txtai – A Strong Alternative to ChromaDB and LangChain for Vector Search and RAG

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