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Re:ANN v3: 200ms p99 query latency over 100B vectors by jascha_eng on Wednesday January 21, 2026 @07:38PM (#46713732)
This is legitimately pretty impressive. I think the rule of thumb is now, go with postgres(pgvector) for vector search until it breaks, then go with turbopuffer.
Re:ANN v3: 200ms p99 query latency over 100B vectors by _peregrine_ on Thursday January 22, 2026 @12:05PM (#46721958)
seems like a good rule of thumb to me! though i would perhaps lump "cost" into the "until it breaks" equation. even with decent perf, pg_vector's economics can be much worse, especially in multi-tenant scenarios where you need many small indexes (this is true of any vector db that builds indexes primarily on RAM/SSD)
Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @10:39AM (#46754998)
Qdrant is also a good default choice, since it can work in-memory for development, with a hard drive for small deployments and also for "web scale" workloads.

As a principal eng, side-stepping a migration and having a good local dev experience is too good of a deal to pass up.

That being said, turbopuffer looks interesting. I will check it out. Hopefully their local dev experience is good

Re:ANN v3: 200ms p99 query latency over 100B vectors by nostrebored on Sunday January 25, 2026 @11:43AM (#46755609)
Qdrant is one of the few vendors I actively steer people away from. Look at the GitHub issues, look at what their CEO says, look at their fake “advancements” that they pay for publicity on…

The number of people I know who’ve had unrecoverable shard failures on Qdrant is too high to take it seriously.

Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @03:20PM (#46757759)
I’m curious about this. Could you please point to some things the CEO has said, or reports of shard failures?

The bit about paying for publicity doesn’t bother me.

Edit: I haven’t found anything egregious that the CEO has said, or anything really sketchy. The shard failure warnings look serious, but the issues look closed

https://github.com/qdrant/qdrant/issues/6025

https://github.com/qdrant/qdrant/issues/4939

Re:ANN v3: 200ms p99 query latency over 100B vectors by nostrebored on Sunday January 25, 2026 @10:07PM (#46761394)
https://x.com/nils_reimers/status/1809334134088622217?s=46

https://x.com/generall931/status/1809303448837582850?s=46

There used to be a benchmarking issue with a founder that was particularly egregious but I can’t find it anymore.

The sharding and consensus issues were from around a year and a half ago, so maybe it’s gotten better.

There are just so many options in the space, I don’t know why you’d go with one of the least correct vendors (whether or not the correctness is deception is a different question that I can’t answer)

Re:ANN v3: 200ms p99 query latency over 100B vectors by bobvanluijt on Thursday January 29, 2026 @02:33PM (#46815340)
> issue with a founder

That would be me

Re:ANN v3: 200ms p99 query latency over 100B vectors by andre-z on Monday January 26, 2026 @03:04AM (#46763011)
What do I say? Happy to talk about "fakes". Here is my calendar. Feel free to book a slot. https://qdrant.to/andre-z
Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @11:16AM (#46755379)
For local dev + testing, we recommend just hitting the production turbopuffer service directly, but with a separate test org/API key: https://turbopuffer.com/docs/testing

Works well for the vast majority of our customers (although we get the very occasional complaint about wanting a dev environment that works offline). The dataset sizes for local dev are usually so small that the cost rounds to free.

Re:ANN v3: 200ms p99 query latency over 100B vectors by sroussey on Sunday January 25, 2026 @11:32AM (#46755508)
That’s not local though
Re:ANN v3: 200ms p99 query latency over 100B vectors by enigmo on Sunday January 25, 2026 @01:47PM (#46756874)
having a local simulator (DynamoDB, Spanner, others) helps me a lot for offline/local development and CI. when a vendor doesn't off this I have often end up mocking it out (one way or another) and have to wait for integration or e2e tests for feedback that could have been pushed further to the left.

in many CI environments unit tests don't have network access, it's not purely a price consideration.

(not a turbopuffer customer but I have been looking at it)

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @02:30PM (#46757351)
> in many CI environments unit tests don't have network access, it's not purely a price consideration.

I've never seen a hard block on network access (how do you install packages/pull images?) but I am sympathetic to wanting to enforce that unit tests run quickly by minimizing/eliminating RTT to networked services.

We've considered the possibility of a local simulator before. Let me know if it winds up being a blocker for your use case.

Re:ANN v3: 200ms p99 query latency over 100B vectors by lambda on Sunday January 25, 2026 @02:36PM (#46757393)
> how do you install packages/pull images

You pre-build the images with packages installed beforehand, then use those image offline.

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @03:13PM (#46757705)
My point is it's enough of a hassle to set up that I've yet to see that level of restriction in practice (across hundreds of CI systems).
Re:ANN v3: 200ms p99 query latency over 100B vectors by dzbarsky on Sunday January 25, 2026 @03:48PM (#46758030)
Look into Bazel, a very standard build system used at many large tech companies. It splits fetches from build/test actions and allows blocking network for build/test actions with a single CLI flag. No hassle at all.

The fact that you haven't come across this kind of setup suggests that your hundreds of CI systems are not representative of the industry as a whole.

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @05:58PM (#46759491)
I agree our sample may not be representative but we try to stay focused on the current and next crop of tpuf customers rather than the software industry as a whole. So far "CI prohibits network access during tests" just hasn't come up as a pain point for any of them, but as I mentioned in another comment [0], we're definitely keeping an open mind about introducing an offline dev experience.

(I am familiar with Bazel, but I'll have to save the war stories for another thread. It's not a build tool we see our particular customers using.)

[0]: https://news.ycombinator.com/item?id=46758156

Re:ANN v3: 200ms p99 query latency over 100B vectors by enigmo on Monday January 26, 2026 @09:45AM (#46766234)
you pull packages from a trusted package repository, not from the internet. this is not rare in my experience (financial services, security) and will become increasingly common due to software supply chain issues.
Re:ANN v3: 200ms p99 query latency over 100B vectors by lambda on Sunday January 25, 2026 @02:34PM (#46757385)
> although we get the very occasional complaint about wanting a dev environment that works offline

It's only occasional because the people who care about dev environments that work offline are most likely to just skip you and move on.

For actual developer experience, as well as a number of use cases like customers with security and privacy concerns, being able to host locally is essential.

Fair enough if you don't care about those segments of the market, but don't confuse a small number of people asking about it with a small number of people wanting it.

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @03:59PM (#46758156)
Yep, we're well aware of the selection bias effects in product feedback. As we grow we're thinking about how to make our product more accessible to small orgs / hobby projects. Introducing a local dev environment may be part of that.

Note that we already have a in-your-own-VPC offering for large orgs with strict security/privacy/regulatory controls.

Re:ANN v3: 200ms p99 query latency over 100B vectors by nik9000 on Sunday January 25, 2026 @03:44PM (#46757996)
As someone who works for a competitor, they are probably right holding off on that segment for a while. Supporting both cloud and local deployments is somewhere between 20% harder and 300% harder depending on the day.

I'm watching them with excitement. We all learn from each other. There's so much to do.

Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @03:31PM (#46757853)
Can confirm. With a setup that works offline, one can

- start small on a laptop. Going through procurement at companies is a pain

- test things in CI reliably. Outages don’t break builds

- transition from laptop scale to web scale easily with the same API with just a different backend

Otherwise it’s really hard to justify not using S3 vectors here

The current dev experience is to start with faiss for PoCs, move to pgvector and then something heavy duty like one of the Lucene wrappers.

Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @03:16PM (#46757723)
I should have clarified, by local dev and testing I did in fact mean offline usage.

Without that it’s unfortunately a non starter

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @03:30PM (#46757848)
So I can note this down on our roadmap, what's the root of your requirement here? Supporting local dev without internet (airplanes, coffee shops, etc.)? Unit test speed? Something else?
Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @03:36PM (#46757905)
I listed some reasons in another comment: https://news.ycombinator.com/item?id=46757853

I appreciate your responsiveness and open mind

Re:ANN v3: 200ms p99 query latency over 100B vectors by benesch on Sunday January 25, 2026 @04:13PM (#46758295)
Thanks, appreciate this! Jotted down some notes on our roadmap.
Re:ANN v3: 200ms p99 query latency over 100B vectors by sa-code on Sunday January 25, 2026 @04:57PM (#46758803)
I wish you the best
Re:ANN v3: 200ms p99 query latency over 100B vectors by jauntywundrkind on Sunday January 25, 2026 @01:49PM (#46756896)
I'd love to know how they compare versus MixedBread, what relative strengths each has. https://www.mixedbread.com/

I really really enjoy & learn a lot from the mixedbread blog. And they find good stuff to open source (although the product itself is closed). https://www.mixedbread.com/blog

I feel like there's a lot of overlap but also probably a lot of distinction too. Pretty new to this space of products though.