Hot Aisle vs Voltage Park: Pricing, Specs, Strengths & Weaknesses
Side-by-side comparison of GPU compute pricing, regions, billing models, and strengths for Hot Aisle and Voltage Park. Rates sourced from public APIs — verify current availability and billing terms before purchasing.
Overview
Strengths & Best For
Hot Aisle provides bare-metal H100, A100, and RTX GPU servers with no virtualization overhead and dedicated hardware for AI training and HPC workloads, based in the UK. Monthly and on-demand billing options are available for teams that need consistent, dedicated GPU performance without shared-tenancy concerns. A strong bare-metal GPU option for UK-based HPC teams and AI labs that need maximum hardware performance and full control over their compute environment.
- Bare-metal performance
- No virtualization overhead
- UK presence
- Bare-metal only — requires more infrastructure management
- Limited self-service tooling
- Smaller ecosystem vs cloud providers
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Voltage Park has merged with Lightning AI to create one place to build and ship AI. The combined platform offers 36,000 NVIDIA Hopper, Blackwell, and Grace Blackwell GPUs across 8,176-GPU InfiniBand clusters with 3,200 Gbps aggregate bandwidth (NVIDIA Quantum-2 InfiniBand). On-demand H100 available with no long-term contracts; reserved/long-term pricing available. Dell PowerEdge XE9680 servers with NVIDIA HGX H100s, 1TB RAM SXM, 52 vCPUs. Tier 3+ data centers. AI Factory products include GraphN, image/video/podcast generators, and model playground. Customers include Cursor, Caltech, Phind, Dream3D, Prime Intellect.
- On-demand H100 with no long-term contracts
- 36,000 Hopper/Blackwell/Grace Blackwell GPUs
- 8,176-GPU InfiniBand clusters, 3,200 Gbps bandwidth
- Merged with Lightning AI — AI Factory + GPU Cloud combined
- Tier 3+ data centers
- Trusted by Cursor, Caltech, Phind, Prime Intellect
- Merger with Lightning AI creates product transition period
- Primarily H100 Hopper — Blackwell availability limited
- Fewer self-service features vs RunPod or Vast.ai
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Key differences
Hot Aisle
Bare-metal GPU infrastructure
Voltage Park
Merged with Lightning AI — H100 on-demand, 36,000 Hopper/Blackwell/Grace Blackwell GPUs