Vast.aiVast.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.
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IT & Communication · Spring Valley, California
Excellent
IT & Communication · San Francisco, California
Excellent
IT & Communication · San Francisco, California
Excellent
IT & Communication · Los Angeles, California
Excellent
Showing 190 reviews with 5 stars · Clear filters
Oscar L.
Extremely helpful and responsive customer support. This surprised me because it is a very cheap/budget gpu rental platform.
Response from Vast.aiOct 21, 2026
Thank you for the kind words! We're glad to hear you've had a positive experience with our support team. We appreciate you taking the time to share your feedback and for choosing Vast.ai!
Josh A.
First time using an AI company for building a fine tuned LLM. Worked great and I would suggest their h100's for anything around 27B parameters. Maybe could go higher too, it only took 30 mins or so. Thanks Vast.ai I'm coming back soon!
Response from Vast.aiOct 21, 2026
Thank you for sharing your experience! We're glad to hear your LLM fine-tuning project went smoothly and that our H100 GPUs worked well for your needs. We appreciate the recommendation and look forward to having you back on Vast.ai!
Milind P.
I want to extend my sincere thanks to Bach and the Vast.ai development team for staying with me until our VM enablement issues were fully sorted out. Bach was particularly courteous, providing clear, detailed instructions and maintaining persistent communication to correctly diagnose the root cause of the VM test failures. This issue was affecting multiple systems across my AI cluster, specifically our 4090, 5090, and PRO 5000 series systems. Your dedication ensured our cluster infrastructure issue was completely resolved, and we truly appreciate the exceptional level of support provided by Vast.ai team. Regards, MUAMCP Australia
Response from Vast.aiOct 21, 2026
Thank you for the thoughtful review. We're glad to hear our team were able to help. We appreciate your recognition of their efforts and will be sure to share your kind words with the team. Thank you for being part of Vast.ai!
Tay
Their live chat is always available and the selection of GPU’s is superb! Also the bandwidth prices are way cheaper than AWS and other cloud providers.
Vast ai S.
marco did a fantastic job with helping me customer service was fantastic !
Customer
As a host writing this review, I find Support extremely helpful and responsive. Payments and invoicing are processed promptly.
WANGXINFENG
This company is truly excellent; I earn great returns by hosting my machines on this platform, and the customer service team is very patient when explaining things. The platform is exceptionally well-designed, and I hope everyone uses it for work and to make money. Saber from customer support is incredibly patient!
Ranran C.
Really love it, very easy to set up!