Vast.ai is a global GPU marketplace. Use one simple interface to search the marketplace and rent powerful cloud GPUs at reasonable prices. Save 5-6X vs major competitors on cloud GPU rental rates.
Vast.ai (vast.ai) has 249 customer reviews on Five Star Index, with an average rating of 4.2 out of 5.
Website
vast.ai
Category
IT & Communication
Location
Los Angeles, California
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 16% of reviews.
Latest
Most recent review: October 2026.
Edits
Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score
This company cannot pay to remove reviews or change its score.
Tried to cash out to my wise account and it didn’t work, contacted their support team and they said they forwarded it to their team and then after they just ghosted me and now it’s been maybe ~2 months and still no response. This company are scammers and won’t give me my money
ED
Enes D.
I got unrecognized charges
I got unrecognized charges. Auto top-off was disabled, my card wasn't saved and my instances was deleted yet I still got charged. My account credit was going down on its own. Do not give this company your credit card.
SB
Skandi Boy S.
Als Host von GPU-Servern kann ich nur…
Als Host von GPU-Servern kann ich nur dringend abraten, von dieser hochgradig kriminellen, unseriösen und unprofessionellen Plattform Abstand zu nehmen. Der Support ist an Inkompetenz nicht zu übertreffen.
Du als Host wirst für jede Sache, die schief läuft, bestraft finanziell. Entweder wird deine Zuverlässigkeit gesunken oder wird dir einfach massiv Geld abgezogen, aber wenn du dagegen widersprichst, interessiert das dort kein Schwein. Stattdessen entstehen dir finanzielle Nachteile.
Aber wenn nachweislich der Anbieter der Plattform verantwortlich für Fehler ist und du trotzdem eine Sanktion bekommst, bist du trotzdem der Idiot. Du bekommst keine Entschädigung, und es interessiert dir dort nicht. Normalerweise müsste diese Plattform verklagt werden und geschlossen werden.
Update: der Support ist absolut unterirdisch. Dieser ist hochgradig kriminell, frech, dreist, unverschämt und lenkt von deren Inkompetenz ab und möchte immer den Kunden, also in dem Fall den Host, für alles Mögliche verantwortlich machen. So was Dreistes, Unverschämtes, Freches mit so einer großen Fresse wird ganz höchstpersönlich gemaßregelt.
Support: Travis
"If you continue to spam our support with AI generated message like this, we will block you.
We have reviewed your response. Your machines went offline causing customer harm but "you didn't see the message". You have no system monitoring on your own? Your request to have charges reversed is denied. You really need to shore up your operations.
Your reliability score is not something you are entitled to having, and it is set low because your instances are unreliable and causing harm to our customers. If this continues, we will mark them as deverified/unverifed. We owe you no technical investigation nor will we conduct one."
AZ
azerty
Toute les machines sont déjà morte!!
Toute les machines sont déjà morte!!! 67.9 kB/s alors que annoncé pour 1437.0 Mbps. Même après 4 machines tester toujours la même chose!
AA
Aida A.
I hosted my rig on Vast.ai…
I hosted my rig on Vast.ai approximately 6 months ago, and the earnings are visible in my dashboard. However, when I try to withdraw my funds, none of the available digital payment options work successfully.
I have attempted multiple withdrawal methods, but the payments are not being received. I have also been in contact with support, but the issue remains unresolved despite several exchanges.
SR
Sérgio S.
Verified host reduced GPU performance after 1 month upfront payment — 6-day downtime, zero support response
I rented a GPU instance on a Vast.ai Verified host and paid $231 upfront for a full month. Shortly after, I discovered the host had silently reduced the GPU performance by 22% with no notice and no price adjustment — I was paying full price for a degraded machine.
On top of that, the instance went completely offline with no prior warning. For the last 6 days I have been unable to work on the machine I paid for. It is simply inaccessible.
I filed a formal complaint by email 15 days ago. Got one automated-sounding reply saying someone would "look into it." Nothing since. No resolution, no credit, no explanation.
I paid in advance in good faith. Vast.ai themselves verified this host - a data center — that means they vouched for it. Yet here I am, weeks later, with money spent and nothing to show for it.
I am now considering a chargeback as the only option left. I expected much more from a company I already spent hundreds.
Response from Vast.aiJun 16, 2026
Sérgio, we completely understand your frustration and sincerely apologize for the delay in resolution. This is not the experience we want for our customers.
Our team has been in touch to process your reimbursement and we are working to close this out for you. Thank you for bringing this to our attention.
We are also reviewing this host and our internal processes. Your feedback goes a long way in helping us get better.
SW
Stephen W. M.
Spent 1,000s of dollars on Vast.ai
I have been using Vast.ai for over 6 months. For the first 3 months everything has been working smoothly.
But the last 3 months have been disastrous...
Rented instances removed GPUs while still charging the full price. They restarted my instances without warning on multiple occasions. Copy/Paste function between instances stopped working etc.
Support is useless because they don't know what vast.ai even does, they just tell you to try again and pretend everything is user error, not platform error.
Don't waste your money there, it's extremely frustrating.