GPU cloud comparison · 2026
AWS GPU (EC2) vs Vast.ai
AWS GPU (EC2) wins on 4 of 5 key metrics — but the right choice depends on your workload.
Overall Winner
AWS GPU (EC2)
Largest GPU fleet worldwide — P4/P5 instances for enterprise
from $3.06/h
★★★★☆ 4.2 / 5 (4,123 reviews)
Try AWS GPU (EC2) →VS
Vast.ai
Cheapest GPU cloud — peer-to-peer marketplace for budget training
from $0.10/h
★★★★☆ 4.1 / 5 (2,108 reviews)
Try Vast.ai →Head-to-Head Comparison
AWS GPU (EC2)
Vast.ai
Starting Price Lower hourly rate
from $3.06/h
from $0.10/h
Overall Rating User rating
4.2 / 5
4.1 / 5
GPU Types Variety
5 types
5 types
Max VRAM Largest available
80 GB
80 GB
Locations Regions covered
US, EU, APAC, Global
US, EU, APAC, Global
Wins out of 5
4
1
GPU Availability
AWS GPU (EC2)
A100H100V100T4Inferentia2
VRAM: 16–80 GB · Locations: US, EU, APAC, Global
Vast.ai
RTX 3090RTX 4090A100H1003060
VRAM: 8–80 GB · Locations: US, EU, APAC, Global
Pros & Cons
AWS GPU (EC2)
Pros
- Most comprehensive ML toolchain (SageMaker)
- Spot instances for massive cost savings
- Best compliance certifications globally
- Inferentia for cost-effective inference
Cons
- Most expensive on-demand GPU pricing
- Complex pricing model
- Not beginner-friendly for pure GPU rental
Vast.ai
Pros
- Absolute cheapest GPU compute available
- Widest GPU variety including consumer cards
- Good for fault-tolerant batch jobs
- Marketplace competition drives prices down
Cons
- Hosts can take instances offline anytime
- Variable reliability across providers
- Less suitable for time-sensitive inference
Which Should You Choose?
Choose AWS GPU (EC2) if…
- You need GPU compute for Enterprise MLOps
- You need GPU compute for SageMaker pipelines
- You need GPU compute for Production inference
- You need GPU compute for Regulated industries
- Higher user satisfaction matters (4.2 vs 4.1)
- You want more GPU variety (5 vs 5 types)
Choose Vast.ai if…
- You need GPU compute for Batch training
- You need GPU compute for Budget experiments
- You need GPU compute for Stable Diffusion
- You need GPU compute for Data processing
- Lower price is your top priority (from $0.10/h vs from $3.06/h)