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upstash
semantic-cache
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upstash / semantic-cache

semantic-cache

A fuzzy key value store based on semantic similarity rather lexical equality.

AI & Machine LearningTesting & QualityLibraries & SDKs
Explore on GitHubRead Hacker News discussions
2Distinct people
3Mentions
0Explicit recommenders
305GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A fuzzy key value store based on semantic similarity rather lexical equality.

GitHub

Where it is used

No documented product use has been verified yet.

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

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 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 week3 dated mentions

Observed mentions: 2024-05-01 05:12:52 UTC to 2024-09-25 00:01:31 UTC. Weeks start Monday, UTC.

012024-04-29 00:00:00 UTC to 2024-05-06 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsApr 292024-05-06 00:00:00 UTC to 2024-05-13 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments2024-05-13 00:00:00 UTC to 2024-05-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-05-20 00:00:00 UTC to 2024-05-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-05-27 00:00:00 UTC to 2024-06-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-03 00:00:00 UTC to 2024-06-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-10 00:00:00 UTC to 2024-06-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-17 00:00:00 UTC to 2024-06-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-24 00:00:00 UTC to 2024-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-07-01 00:00:00 UTC to 2024-07-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-07-08 00:00:00 UTC to 2024-07-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJul 82024-07-15 00:00:00 UTC to 2024-07-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-07-22 00:00:00 UTC to 2024-07-29 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-07-29 00:00:00 UTC to 2024-08-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-05 00:00:00 UTC to 2024-08-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-12 00:00:00 UTC to 2024-08-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-19 00:00:00 UTC to 2024-08-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-26 00:00:00 UTC to 2024-09-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-02 00:00:00 UTC to 2024-09-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-09 00:00:00 UTC to 2024-09-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-16 00:00:00 UTC to 2024-09-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-23 00:00:00 UTC to 2024-09-30 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsSep 23

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
Apr 292024-04-29 00:00:00 UTC2024-05-06 00:00:00 UTC110
May 62024-05-06 00:00:00 UTC2024-05-13 00:00:00 UTC110
May 132024-05-13 00:00:00 UTC2024-05-20 00:00:00 UTC000
May 202024-05-20 00:00:00 UTC2024-05-27 00:00:00 UTC000
May 272024-05-27 00:00:00 UTC2024-06-03 00:00:00 UTC000
Jun 32024-06-03 00:00:00 UTC2024-06-10 00:00:00 UTC000
Jun 102024-06-10 00:00:00 UTC2024-06-17 00:00:00 UTC000
Jun 172024-06-17 00:00:00 UTC2024-06-24 00:00:00 UTC000
Jun 242024-06-24 00:00:00 UTC2024-07-01 00:00:00 UTC000
Jul 12024-07-01 00:00:00 UTC2024-07-08 00:00:00 UTC000
Jul 82024-07-08 00:00:00 UTC2024-07-15 00:00:00 UTC000
Jul 152024-07-15 00:00:00 UTC2024-07-22 00:00:00 UTC000
Jul 222024-07-22 00:00:00 UTC2024-07-29 00:00:00 UTC000
Jul 292024-07-29 00:00:00 UTC2024-08-05 00:00:00 UTC000
Aug 52024-08-05 00:00:00 UTC2024-08-12 00:00:00 UTC000
Aug 122024-08-12 00:00:00 UTC2024-08-19 00:00:00 UTC000
Aug 192024-08-19 00:00:00 UTC2024-08-26 00:00:00 UTC000
Aug 262024-08-26 00:00:00 UTC2024-09-02 00:00:00 UTC000
Sep 22024-09-02 00:00:00 UTC2024-09-09 00:00:00 UTC000
Sep 92024-09-09 00:00:00 UTC2024-09-16 00:00:00 UTC000
Sep 162024-09-16 00:00:00 UTC2024-09-23 00:00:00 UTC000
Sep 232024-09-23 00:00:00 UTC2024-09-30 00:00:00 UTC101

What Hacker News says

3 sources
davidbarker·Sep 25, 2024
I was impressed by Upstash's approach to something similar with their "Semantic Cache". https://github.com/upstash/semantic-cache "Semantic Cache is a tool for caching natural text based on semantic similarity. It's ideal for any task that involves querying or retrieving information based on meaning, such as natural language classification or caching AI responses. Two pieces of text can be similar but not identical (e.g., "great places to check out in Spain" vs. "best places to visit in Spain"). Traditional caching doesn't recognize this semantic similarity and misses opportunities for reuse."
In Show HN: Velvet – Store OpenAI requests in your own DB

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