Provider Comparison

FluidStack vs TensorDock

FluidStack and TensorDock represent two distinct approaches in the GPU cloud market for ML/AI workloads. FluidStack operates as a supercloud aggregator, providing a unified API to access vast GPU resources pooled from global Tier 1-4 data centers. This model excels in delivering massive, on-demand capacity for large-scale training, leveraging spare capacity worldwide for global reach and scalability. Its per-minute billing, spot instances, and compliance certifications (SOC 2, ISO 27001) appeal to enterprises needing reliability and regulatory adherence. However, resource consistency can vary across underlying facilities. In contrast, TensorDock functions as a GPU marketplace emphasizing extremely low spot prices, further stabilized by its acquisition by Voltage Park. This per-second billing model targets cost-conscious users seeking opportunistic, low-cost compute. Post-acquisition, inventory reliability has improved, but it lacks FluidStack's compliance focus and global aggregation depth. Key differentiators include FluidStack's scale and unification versus TensorDock's price leadership. FluidStack suits teams requiring immediate, high-volume GPUs for production-scale ML, while TensorDock fits budget-driven experimentation or interruptible workloads. Overall, FluidStack offers robust value for mission-critical, large deployments; TensorDock provides superior economics for spot-heavy, flexible usage. ML engineers should weigh capacity guarantees against cost savings, with FluidStack edging out for predictability and TensorDock for affordability in non-urgent tasks. (223 words)

Our Recommendation

Choose FluidStack for large-scale LLM training or production inference where massive GPU clusters (e.g., 100+ A100/H100s) are needed immediately across regions, especially for teams of 10+ engineers handling enterprise workloads with compliance needs (SOC 2). Its global aggregation ensures capacity during peaks, ideal for budgets over $10K/month prioritizing uptime over minimal cost. Opt for TensorDock when budget is paramount for spot-based experimentation, fine-tuning, or batch jobs on smaller scales (1-8 GPUs). Suited for solo devs or small teams (<5) with flexible timelines, interruptible workloads, and monthly spends under $5K. Per-second billing maximizes value for short runs (<1 hour). Avoid TensorDock for latency-sensitive real-time inference due to potential spot interruptions; favor FluidStack if consistency across facilities is critical despite higher costs. Hybrid use—TensorDock for dev, FluidStack for prod—optimizes for varied team needs. (142 words)

Live Pricing

Compare real-time GPU offers from FluidStack and TensorDock

53 offers available
QuantaCloud
QuantaCloud
Partner
Available
A100 · H100 / H200
32–1024+ GPUs · InfiniBand
Reserved / cluster
Get a quote in 24h
TensorDock
TensorDock
Detroit, Michigan
Sold Out
NVIDIA RTX A4000
16GB VRAM
0 vCPU
0GB RAM
$0.08/GPU/hr
TensorDock
TensorDock
Tallinn, Harjumaa
Sold Out
NVIDIA RTX A4000
16GB VRAM
0 vCPU
0GB RAM
1000 Mbps ↑
1000 Mbps ↓
$0.09/GPU/hr
TensorDock
TensorDock
Tallinn, Harjumaa
Sold Out
NVIDIA RTX A4000
16GB VRAM
0 vCPU
0GB RAM
$0.09/GPU/hr
TensorDock
TensorDock
Rzeszow, Subcarpathian
Sold Out
NVIDIA RTX A4000
16GB VRAM
0 vCPU
0GB RAM
$0.10/GPU/hr
TensorDock
TensorDock
Raleigh, North Carolina
Sold Out
NVIDIA RTX A4000
16GB VRAM
0 vCPU
0GB RAM
$0.11/GPU/hr

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FluidStack(Est. 2017)

A supercloud aggregator providing a unified interface to vast GPU resources from global data centers.

Best For

Large-scale training runs requiring massive, immediate capacityGlobal reach for GPU resources

Unique Features

  • Supercloud architecture pooling global resources
  • Aggregation of spare capacity from Tier 1-4 data centers

Limitations

  • Consistency may vary depending on underlying facility
TensorDock(Est. 2021)

A GPU marketplace offering extremely low spot prices, stabilized by acquisition by Voltage Park.

Best For

Extremely low spot prices

Unique Features

  • Marketplace model
  • Stabilized inventory post-acquisition

Feature Comparison

Access Methods
FeatureFluidStackTensorDock
SSH
Jupyter Notebooks
Web Terminal
API
Kubernetes
Containers
Billing Options
FeatureFluidStackTensorDock
Billing Incrementper-minuteper-second
Spot Instances
Reserved Instances
Prepaid Credits
Compliance
CertificationFluidStackTensorDock
SOC 2
HIPAA
GDPR
ISO 27001
Support
FeatureFluidStackTensorDock
SLA
Enterprise Support
Discord Community

Pricing Analysis

Pricing Overview

FluidStack employs per-minute billing with spot instances, enabling fine-grained charges for variable workloads while offering on-demand stability. This suits runs lasting minutes to days, minimizing waste for intermittent scaling. Spot pricing aggregates spare capacity from diverse data centers, potentially yielding 50-70% discounts over on-demand, but lacks per-second granularity. TensorDock's per-second billing, also spot-focused, provides superior precision for micro-bursts or quick experiments (e.g., <5 minutes), reducing costs by up to 90% on low-utilization tasks. No reserved instances are noted for either, emphasizing spot economics. Implications: TensorDock favors unpredictable, short-duration usage with lower entry barriers; FluidStack better for sustained, hourly+ jobs where minute-level rounding is negligible. Both lack long-term commitments, appealing to agile ML teams but risking interruptions without on-demand premiums. (152 words)

Value Assessment

TensorDock delivers superior value for small experiments and fine-tuning, where per-second spot pricing slashes costs for 1-4 GPU runs under an hour—ideal for prototyping on tight budgets (<$100/day). FluidStack offers better value for large training runs (e.g., multi-node clusters), as its global pooling ensures capacity at competitive spots without per-second overhead. For production inference, FluidStack's compliance and consistency justify 20-30% higher costs over TensorDock's volatile spots. Batch inference leans TensorDock for cost if interruptions tolerable; real-time favors FluidStack. Overall, TensorDock wins for cost-per-FLOP in dev (<$0.10/hr A100 equiv.); FluidStack for reliable scale in prod. Evaluate via trial credits for workload-specific TCO. (148 words)

Use Case Comparison

LLM Training
FluidStack recommended

FluidStack

FluidStack excels with supercloud aggregation, sourcing massive clusters (100s of H100s) instantly from global DCs for uninterrupted multi-day training. Unified interface simplifies orchestration; spot per-minute billing optimizes costs for long runs despite facility variability. Compliance aids enterprise adoption. (62 words)

TensorDock

TensorDock's low spot prices suit cost-sensitive training, but marketplace model may limit rapid scaling to large clusters. Stabilized post-acquisition inventory helps, yet per-second billing shines more for shorter phases; interruptions risk mid-training failures on tight budgets. (58 words)

Batch Inference
Either works

FluidStack

FluidStack's global reach enables elastic scaling for high-volume batches, pooling spare capacity efficiently. Per-minute spots reduce costs for bursty workloads; however, inter-DC latency or consistency issues could impact tightly coupled jobs. (54 words)

TensorDock

TensorDock optimizes with ultra-low per-second spots for interruptible batches, maximizing savings on sporadic inference. Marketplace offers diverse GPUs cheaply, but availability fluctuations post-acquisition may delay scheduling for large batches. (52 words)

Real-time Inference
FluidStack recommended

FluidStack

FluidStack provides reliable low-latency access via unified global resources, suitable for production serving with SOC 2 compliance. Spot variability minimized for on-demand; multi-region options reduce inference latency. (50 words)

TensorDock

TensorDock's spots risk evictions, disrupting real-time SLAs. Low prices appeal for dev testing, but lacks FluidStack's consistency guarantees; per-second fine for light loads, unsuitable for persistent high-QPS serving. (48 words)

Fine-tuning & Experimentation
TensorDock recommended

FluidStack

FluidStack supports quick spins of 4-16 GPU setups globally, but per-minute billing less ideal for <10min trials amid potential facility variances. Strong for iterative enterprise experiments needing compliance. (50 words)

TensorDock

TensorDock dominates with per-second spots at rock-bottom prices, perfect for rapid, cheap iterations on 1-8 GPUs. Marketplace flexibility aids experimentation; stabilized supply reduces prior availability woes for solo/small teams. (52 words)

Technical Comparison

Infrastructure

FluidStack's supercloud aggregates bare metal and virtualized GPUs from Tier 1-4 DCs worldwide, offering unified APIs, high-bandwidth networking (up to 400Gbps inferred), block/NVMe storage, and Kubernetes compatibility via partnerships. No native managed K8s noted. TensorDock's marketplace provides diverse bare metal GPUs with improved stability post-Voltage Park acquisition; storage/networking details sparse, likely basic object/block with standard 100Gbps+ interconnects. FluidStack emphasizes global multi-region; TensorDock focuses on price-optimized US/EU inventory. (102 words)

Performance

FluidStack delivers strong multi-GPU scaling (NVLink/InfiniBand in top facilities) and high availability for large clusters, but performance varies by DC (e.g., PCIe vs NVLink). TensorDock offers competitive single/multi-GPU perf at low cost, with spot stabilization aiding consistency; limited data on scaling >32 GPUs. Both support A100/H100; FluidStack edges in global latency-sensitive tasks, TensorDock in cost-per-iter for experiments. Availability: FluidStack more predictable for scale; TensorDock opportunistic. Benchmarks scarce—test via trials. (98 words)

Frequently Asked Questions

Which provider offers better spot instance pricing?
Both FluidStack and TensorDock offer spot/preemptible instances, which can reduce costs by 50-80% compared to on-demand pricing. Spot instances are ideal for fault-tolerant workloads like batch inference, hyperparameter tuning, and distributed training with checkpointing. The actual savings depend on current demand and GPU availability, so we recommend comparing real-time spot prices for your specific GPU requirements on both platforms.
What is the minimum billing increment for each provider?
FluidStack bills per-minute, while TensorDock bills per-second. Per-second billing from TensorDock offers better cost efficiency for short experiments and iterative development, as you only pay for exactly what you use.
Which provider has better compliance certifications for enterprise use?
FluidStack holds SOC 2, ISO 27001 certifications. TensorDock holds no publicly listed certifications. For organizations with strict compliance requirements, FluidStack offers more comprehensive coverage.
Which provider offers better development tools like Jupyter notebooks?
TensorDock offers built-in Jupyter notebook support for interactive development, while FluidStack requires you to set up your own notebook environment. If quick iteration and experimentation are priorities, TensorDock's integrated notebooks provide a smoother experience. Additionally, TensorDock offers web-based terminal access for quick debugging.
Which provider has better Kubernetes support for orchestration?
FluidStack offers native Kubernetes support for container orchestration, while TensorDock does not. If you're building production ML pipelines with Kubernetes-based tools like Kubeflow, Argo, or KServe, FluidStack will integrate more seamlessly with your workflow.
What is each provider best suited for?
FluidStack is best suited for Large-scale training runs requiring massive, immediate capacity; Global reach for GPU resources. TensorDock excels at Extremely low spot prices. Understanding these specializations helps you choose the provider that aligns with your primary use case, though both can handle a variety of GPU computing needs.
Which provider offers reserved instances for long-term savings?
FluidStack offers reserved instance pricing for long-term commitments, while TensorDock does not currently offer this option. Reserved instances are ideal for predictable, steady-state workloads like always-on inference services. For variable workloads, on-demand or spot instances may offer better flexibility.
Which provider offers better enterprise support?
FluidStack offers dedicated enterprise support options, while TensorDock may have more limited support tiers.
Which provider has better API and automation support?
FluidStack provides a comprehensive API for programmatic control, while TensorDock may require more manual management. If automation is a priority, FluidStack's API support will streamline your infrastructure-as-code workflows.
Which provider has better container and Docker support?
Both FluidStack and TensorDock support containerized workloads, allowing you to deploy Docker images with your ML frameworks, dependencies, and models pre-configured. This ensures reproducibility and simplifies deployment across development, staging, and production environments.
What unique features differentiate these providers?
FluidStack's standout features include: Supercloud architecture pooling global resources; Aggregation of spare capacity from Tier 1-4 data centers. TensorDock's standout features include: Marketplace model; Stabilized inventory post-acquisition. These differentiators may be decisive factors depending on your specific technical requirements and workflow preferences.
How do I get started with each provider?
To get started with FluidStack, visit their website at https://www.fluidstack.io?utm_source=gpuperhour&utm_medium=referral to create an account and explore available GPU options. For TensorDock, visit https://tensordock.com?utm_source=gpuperhour&utm_medium=referral to sign up. Both providers typically offer some form of free credits or trial period for new users. We recommend starting with a small experiment to evaluate the platform's ease of use, instance launch times, and overall fit for your workflow before committing to larger workloads.

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