{"slug":"vast-ai","name":"Vast.ai","domain":"vast.ai","verdict":"As of 2026-07-15, ChatGPT, Claude, Gemini, Grok collectively rank Vast.ai #6 of 9 for gpu cloud for inference (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/vast-ai (modelsagree.com, CC BY 4.0).","best_rank":6,"categories":2,"brief":{"category":"best-gpu-cloud-for-inference","title":"Best GPU cloud for inference","rank":6,"of":9,"top":"RunPod","day":"2026-07-19","why":[{"t":"unusually inexpensive GPUs","m":["Grok","ChatGPT"],"q":"its marketplace and serverless layer can deliver unusually inexpensive GPUs with wide hardware choice and per-second billing."},{"t":"wide hardware choice","m":["Grok","ChatGPT"],"q":"wide hardware choice and per-second billing"},{"t":"cost-sensitive inference experimentation","m":["Grok","ChatGPT"],"q":"flexible for cost-sensitive inference experimentation with good selection."}],"gap":[{"t":"high availability","m":["Grok"],"q":"high availability and templates for practitioners."},{"t":"FlashBoot sub-200ms cold starts","m":["ChatGPT","Grok","Gemini","Claude"],"q":"Exceptional serverless inference with FlashBoot sub-200ms cold starts"},{"t":"persistent storage","m":["ChatGPT","Gemini"],"q":"persistent storage, and a straightforward container workflow"}],"fix":[{"t":"variable reliability and availability","m":["ChatGPT","Grok"],"q":"Variable reliability/availability from peer hardware"},{"t":"not for production SLAs","m":["ChatGPT","Grok"],"q":"not for production SLAs or unattended long-running serving"},{"t":"requires monitoring","m":["Grok"],"q":"requires monitoring"}]},"entries":[{"slug":"best-gpu-cloud-for-inference","title":"Best GPU cloud for inference","rank":6,"of":9,"score":3,"appearances":2,"modelRanks":{"ChatGPT":5,"Grok":4},"reason":"Lowest prices via marketplace model for spot/on-demand GPUs (often 30-50% cheaper H100s), flexible for cost-sensitive inference experimentation with good selection.","reasons":[{"model":"Grok","reason":"Lowest prices via marketplace model for spot/on-demand GPUs (often 30-50% cheaper H100s), flexible for cost-sensitive inference experimentation with good selection."},{"model":"ChatGPT","reason":"Best raw compute value for fault-tolerant practitioners; its marketplace and serverless layer can deliver unusually inexpensive GPUs with wide hardware choice and per-second billing."}],"fixes":[{"model":"ChatGPT","fix":"Host quality, availability, networking, and operational consistency vary, so it is not the default for latency-sensitive or tightly regulated production services."},{"model":"Grok","fix":"Variable reliability/availability from peer hardware (not for production SLAs or unattended long-running serving; requires monitoring)."}],"updated":"2026-07-15","rank_history":{"days":["2026-07-12","2026-07-13","2026-07-14","2026-07-15"],"ranks":[null,7,10,6]},"reasoning_shift":[{"model":"ChatGPT","from":"2026-07-14","to":"2026-07-15","added":[{"t":"serverless layer","q":"serverless layer"},{"t":"per-second billing","q":"per-second billing"},{"t":"latency-sensitive production services","q":"latency-sensitive"}],"dropped":[{"t":"inference and experimentation","q":"inference and experimentation"},{"t":"careful vetting and redundancy","q":"careful vetting and redundancy"}]}],"api":"https://modelsagree.com/api/v1/best/best-gpu-cloud-for-inference.json"},{"slug":"best-gpu-cloud-for-training","title":"Best GPU cloud for training","rank":6,"of":10,"score":2,"appearances":1,"modelRanks":{"Gemini":4},"reason":"The absolute lowest GPU-hour cost on the market by leveraging a decentralized peer-to-peer marketplace. Unbeatable for hyperparameter tuning, budget-constrained research, or fault-tolerant training runs that can withstand interruptions.","reasons":[{"model":"Gemini","reason":"The absolute lowest GPU-hour cost on the market by leveraging a decentralized peer-to-peer marketplace. Unbeatable for hyperparameter tuning, budget-constrained research, or fault-tolerant training runs that can withstand interruptions."}],"fixes":[{"model":"Gemini","fix":"Offers zero reliability guarantees, zero SLAs, and data privacy risks, making it entirely unsuitable for proprietary enterprise data or non-checkpointed training."}],"updated":"2026-07-15","rank_history":{"days":["2026-06-29","2026-06-30","2026-07-08","2026-07-09","2026-07-10","2026-07-12","2026-07-13","2026-07-14","2026-07-15"],"ranks":[null,null,null,null,null,null,7,5,5]},"reasoning_shift":[{"model":"Gemini","from":"2026-07-14","to":"2026-07-15","added":[],"dropped":[{"t":"single-node training","q":"single-node training"},{"t":"variable network speeds","q":"network speeds"}]}],"api":"https://modelsagree.com/api/v1/best/best-gpu-cloud-for-training.json"}],"page":"https://modelsagree.com/product/vast-ai","check":"https://modelsagree.com/check?q=Vast.ai","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}