Vast.ai Reviews 

Service is not good, your instance gpus can get scheduled from another guy and you have to copy data which costs bandwidth to another instance just so you can open another even if its targeted as "on demand" your still off better going for competitor sites i dont recommend it at all. Customer service is bad as well they seem like they get paid minimum wage and dont even care to help you just give you some copy pastes or some ai bs

Incredibly frustrating some machines fail to do even the most basci things

I had a beatiful experience for 2 weeks using this platform, but I had a little problem today. However, Thai of customers support helped me to solve it. Tysm

Their Ostris AI template is constantly faulty, Stuck at photo upload, never starting jobs, extremely slow/unresponsive UI. I have been using Ostris AI toolkit locally, and never faced these issues. Bandwidths stated on machine descriptions are totally fake. A claimed 1500Mbps is barely 100Mbps. I will never use this service again. Waste of money and time.

Very easy interface. Straight forward. But what got me was the technical support. More than helpful, they were very patient and resolved my problem. Great 5-Star service.

Emmanuel was very helpful and resolved my issues in a timely manner. Vast rocks!!!!!

great services honesty i love the team very support and they are best platform i used so far.

I had to contact support following a host issue. This issue affected many hosts, so I know the staff were busy working on it. Nick and Anthony helped me resolve the problem successfully. I appreciate your time!

Sometimes my instances just stop but that can be ameliorated by aggressive checkpointing. Customer Service is fast and just all around nice.

4/5 for rare infra issues which at this price point is a 5/5 really :)

I rented a GPU instance for an important project, but the server was suddenly disconnected without warning. After that, I was completely unable to reconnect to the instance — even when the host clearly showed it was back online.
What makes the situation even worse is that I repeatedly contacted support, and they either gave contradictory information or made promises they never fulfilled. I was told that I would be reconnected as soon as the host came online, yet nothing happened. No action, no solution, and no real support.
Meanwhile, Vast.ai continued to charge my account, even though I had zero access to the server. This is unacceptable for a service that claims to be reliable and user-friendly.
My data was stuck on a machine I couldn’t access, my time was wasted for more than 24 hours, and the overall stress caused by their unresponsive support was simply terrible. For a company operating in the cloud computing and AI training space, this level of service is shocking.
At this point, I cannot recommend Vast.ai to anyone who needs a stable, trustworthy GPU provider.
If you care about your time, your data, and your money, be very cautious with this platform.

I honestly don’t even know where to begin. I’ve been dealing with weeks of downtime on my server, and the worst part isn’t even the outage itself it’s how completely abandoned I felt throughout the entire experience. My work, my data, everything I was running… all of it was just suddenly out of reach with no real explanation and no meaningful help.

I kept reaching out to customer support hoping someone would finally give me a straight answer, and instead I got responses that felt dismissive and completely out of touch with what was actually happening. I was told stories about “power outages” and issues that simply didn’t match reality, especially when the host clearly had other machines running just fine. Seeing that and having screenshots to prove it made it feel like I wasn’t being told the truth at all.

It’s incredibly frustrating to trust a platform with important work only to be met with silence, mixed messages, and what felt like excuses. Being without my data for this long genuinely impacted my project, and the lack of transparency made it even worse. You start to wonder if anyone is actually looking into your issue or if you’re just supposed to wait indefinitely and hope your work magically comes back.

I’m writing this because no one should have to go through this level of stress and uncertainty with a service they’re paying for. This whole experience left me feeling disappointed, angry, and honestly a bit betrayed. I really hope the company realizes how damaging this kind of communication and downtime can be for real customers with real work depending on them.

Enticed by the very cheap prices and it was fast to get set up. But they have the worst UI/UX team on the planet. I ultimately could not get their server to accept my SSH keys in due time and had to move onto another provider. Too many hoops in the console to jump through to actually figure out how to connect to your server with Root access, and it just feels really hard to focus on the product.

Maybe they don't have a UI/UX team and they just asked AI to build a half baked MUI dashboard.

Used for 2 months with zero issues. While performance depends on the individual provider, my experience has been consistently reliable. Pricing is transparent and affordable. Highly recommended.

the best website and support all good and they will help you throse any thins just comme over it is the best deal trust me

A big thank you to the Vast.ai team! I've been using their platform for a while now and honestly it's impressive. Everything works well, prices are fair, and the variety of GPUs is insane 🤯 you can get the right setup for any kind of project really from small tests to heavy AI training. What if the support is really good. Misses 🔥 Fast, helpful and really human! I've written to them a few times, and every time they have gone out of their way to fix the things that were crooked, no copy-paste answers, just fixed. If you want powerful GPUs and great support - Vast.ai is worth a lot! Big respect to the team and keep up the good work 👏

Vast.ai is my go-to place when it comes down to training my large 14B AI videos or highly time sensitive projects, not only for their global reach and infrastructure and ease of use, but also for their customer support in case any technical difficulties come up. Thank you, Vast.ai

Just had a sales and demo call with Colin Shea, and honestly nothing but praise.
I have been researching platforms to use for a while now, and have had a plethora of sales calls and demos, none of them came close to this one.
He is clear, concise, honest, and knowledgeable about the platform.
He answered all my pricing, usage, AND technical questions. He was honest about what's available and what he'll get back to me on.
Honestly 10/10.
I wont be searching anymore, I think I've found the platform I will use.
Hoping to work more with their team. Culture trickles down and Colin was the best representative of that.