Backblaze B2 vs FluidStack Comparison
Detailed comparison of features, pricing, and capabilities
Last updated May 1, 2026
Overview
Compare key metrics and features at a glance
Backblaze B2
https://www.backblaze.com/b2
Backblaze B2 is a cloud storage service that provides scalable object storage at 1/4th the cost of Amazon S3. The service offers robust APIs, CLI tools, and integrations with various applications, allowing developers and businesses to store and retrieve any amount of data. It features strong durability, native encryption, and lifecycle rules for data management.
FluidStack
https://www.fluidstack.io
FluidStack is a cloud GPU infrastructure provider that aggregates underutilized GPU capacity from data centers worldwide to offer on-demand and reserved GPU compute at competitive prices. The platform enables AI companies, researchers, and developers to access large-scale GPU clusters for training and inference workloads, including support for high-performance interconnects like InfiniBand. FluidStack differentiates itself by sourcing capacity from a distributed network of partner data centers, providing cost-effective alternatives to hyperscale cloud providers for AI/ML workloads.
Quick Comparison
| Detail | Backblaze B2 | FluidStack |
|---|---|---|
| Category | Cloud Storage | AI Cloud Infrastructure |
| Starting Price | Free | Contact Sales |
| Plans Available | 1 | 1 |
| Features Tracked | 1 | 16 |
| Founded | 2007 | 2019 |
| Headquarters | San Mateo, USA | London, United Kingdom |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| S3-Compatible API | ||
| core | ||
| Dedicated GPU Clusters | ||
| Fully Managed Clusters | ||
| H100/H200/B200/GB200 Support | ||
| InfiniBand Interconnects | ||
| Kubernetes Support | ||
| Low-Latency Inference | ||
| Rapid Deployment | ||
| Slurm Support | ||
| Transparent Pricing | ||
| custom | ||
| Custom Data Centers | ||
| integration | ||
| Distributed Data Access | ||
| security | ||
| Secure Access Controls | ||
| Single-Tenant Isolation | ||
| support | ||
| 15-Minute Response SLA | ||
| 99% Uptime SLA | ||
| Proactive Monitoring | ||
Pricing
Compare pricing plans and value for money
Backblaze B2
From $0/mo
Price Components
- storage: $0.006/GB
- download: $0.01/GB
Best For
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
FluidStack
Contact Sales
Best For
AI companies and researchers needing rapid, cost-effective, fully managed large-scale dedicated GPU clusters for training without hyperscaler lock-in.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Backblaze B2, FluidStack is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
Backblaze B2
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
- S3-compatible API enables seamless drop-in replacement for AWS S3 tools and code.
- Costs 1/5th of Amazon S3 with flat rates, free first 10GB, and generous free egress up to 3x storage.
- Supports Object Lock for ransomware protection and 10TB file uploads with no total capacity limit.
- B2 Overdrive delivers 1Tbps throughput for AI/ML/HPC at hyperscaler speeds without egress fees.
- Lacks advanced enterprise features like multi-region replication found in hyperscalers.
- Smaller company size may raise concerns about long-term scalability for massive enterprises.
- Limited feature set compared to full-suite platforms, focusing mainly on core storage.
FluidStack
AI companies and researchers needing rapid, cost-effective, fully managed large-scale dedicated GPU clusters for training without hyperscaler lock-in.
- Rapid deployment of multi-thousand GPU clusters in as little as 48 hours with zero-setup management.
- Single-tenant isolation at hardware, network, and storage levels eliminates noisy neighbors unlike hyperscalers.
- Supports latest NVIDIA H100/H200/B200/GB200 GPUs with InfiniBand and 99% uptime SLA.
- 24/7 engineering support via Slack with 15-minute response times and proactive monitoring.
- Enterprise-only pricing requires contacting sales, lacking transparent pay-as-you-go rates.
- Small team of 11-50 employees and seed funding may limit scalability versus larger competitors.
- Aggregated capacity from partner data centers could introduce variability in global availability.
Company Info
Company details and background
Backblaze B2
FluidStack
Comparison FAQ
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