Backblaze B2 vs CoreWeave 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.
CoreWeave
https://www.coreweave.com
CoreWeave is a specialized cloud provider focused on GPU-accelerated computing, offering large-scale infrastructure optimized for AI/ML workloads, visual effects rendering, and high-performance computing. The company operates one of the largest fleets of NVIDIA GPUs in the cloud, providing on-demand access to compute resources through Kubernetes-based orchestration. CoreWeave went public on the Nasdaq in March 2025 and serves major AI companies, enterprises, and research institutions requiring massive parallel compute capacity.
Quick Comparison
| Detail | Backblaze B2 | CoreWeave |
|---|---|---|
| Category | Cloud Storage | AI Cloud Infrastructure |
| Starting Price | Free | $4/mo |
| Plans Available | 1 | 9 |
| Features Tracked | 1 | 14 |
| Founded | 2007 | 2017 |
| Headquarters | San Mateo, USA | Roseland, USA |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| S3-Compatible API | ||
| core | ||
| AI Object Storage | ||
| Bare Metal Performance | ||
| Fast Boot Times | ||
| File Storage | ||
| HPC-First Architecture | ||
| High Durability Storage | ||
| InfiniBand Networking | ||
| Kubernetes Orchestration | ||
| Mega GPU Clusters | ||
| NVIDIA GPU Access | ||
| No Egress Fees | ||
| SLURM on Kubernetes (SUNK) | ||
| custom | ||
| Custom Instance Types | ||
| security | ||
| Enterprise Security | ||
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.
CoreWeave
From $4/mo
Price Components
- On-Demand Compute: $42/hour
- On-Demand Compute: $68.8/hour
- On-Demand Compute: $49.24/hour
- On-Demand Compute: $6.42/hour
- Spot Compute: $2.99/hour
Best For
AI research labs and enterprises training large language models or running distributed inference at scale who prioritize raw compute performance and cost efficiency over geographic flexibility.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Backblaze B2, CoreWeave 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.
CoreWeave
AI research labs and enterprises training large language models or running distributed inference at scale who prioritize raw compute performance and cost efficiency over geographic flexibility.
- Bare-metal GPU infrastructure eliminates virtualization overhead, delivering 2-3x faster training speeds than legacy cloud providers with identical hardware
- Massive scale support up to 100k+ GPU clusters with InfiniBand networking enables near-linear scaling for distributed AI training at supercomputing scale
- Transparent pricing with zero egress fees and sub-1 minute boot times reduces total cost of ownership by 30-40% versus AWS/Azure for data-intensive ML workloads
- Limited geographic footprint compared to AWS/Azure/GCP, restricting deployment options for enterprises requiring multi-region redundancy or specific data residency compliance
- Smaller ecosystem of pre-built integrations and managed services means users need deeper DevOps expertise to orchestrate complex multi-cloud architectures
Company Info
Company details and background
Backblaze B2
CoreWeave
Comparison FAQ
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