Together AI vs Vast.ai: GPU Compute Price Comparison
Side-by-side comparison of GPU compute pricing, regions, billing models, and strengths for Together AI and Vast.ai. Updated July 2026.
Provider Overview
Strengths & Best For
Together AI provides dedicated H100 and A100 GPU clusters with fast networking, purpose-built for open-source LLM training, fine-tuning, and high-throughput AI inference. On-demand GPU cloud access is paired with a developer-friendly platform that supports popular open models out of the box, reducing time-to-deployment for AI teams. A strong choice for startups and researchers who want managed GPU infrastructure without hyperscaler overhead.
- Inference-optimized
- Open-source LLM support
- Fast networking
- Developer-friendly
Vast.ai is a peer-to-peer GPU marketplace listing 10,000+ GPUs — including H100, A100, and RTX 4090 — from hosts worldwide, consistently offering some of the lowest spot GPU rental prices available anywhere. Both on-demand and bid-based spot pricing are available, enabling researchers and developers to run LLM fine-tuning, image generation, and batch AI workloads at a fraction of traditional cloud costs. The largest and most price-competitive GPU marketplace for budget-conscious AI teams.
- Lowest spot prices
- Wide GPU variety
- Bid-based pricing
- Large host network
Live GPU Pricing
Region Coverage
Popular Comparisons
Together AI — specialist provider
Together AI provides dedicated H100 and A100 GPU clusters with fast networking, purpose-built for open-source LLM training, fine-tuning, and high-throughput AI inference. On-demand GPU cloud access is paired with a developer-friendly platform that supports popular open models out of the box, reducing time-to-deployment for AI teams. A strong choice for startups and researchers who want managed GPU infrastructure without hyperscaler overhead.
Vast.ai — marketplace provider
Vast.ai is a peer-to-peer GPU marketplace listing 10,000+ GPUs — including H100, A100, and RTX 4090 — from hosts worldwide, consistently offering some of the lowest spot GPU rental prices available anywhere. Both on-demand and bid-based spot pricing are available, enabling researchers and developers to run LLM fine-tuning, image generation, and batch AI workloads at a fraction of traditional cloud costs. The largest and most price-competitive GPU marketplace for budget-conscious AI teams.
Billing model comparison
Together AI uses a On-demand, Reserved billing model with a minimum commitment of None. Vast.ai uses On-demand, Spot (bid-based) billing with a None minimum. Both providers offer flexible billing options — compare the live pricing table above to find the best rate for your specific GPU model and workload duration.
Which workloads each provider suits best
Together AI is best suited for: LLM inference, Fine-tuning open models, AI startups. Its key strengths are inference-optimized, open-source llm support, fast networking. Vast.ai is best suited for: Budget-conscious developers, Spot-tolerant batch jobs, Researchers needing cheap GPUs. Its key strengths are lowest spot prices, wide gpu variety, bid-based pricing. Marketplace providers aggregate GPU supply from multiple sources, often offering the lowest spot rates but with more variable availability and less predictable performance compared to dedicated providers.
Support tiers and region coverage
Together AI offers Community → Enterprise support across 2 regions (US-East, US-West). Vast.ai offers Community → Pro support across 4 regions (US, EU, APAC and 1 more). Vast.ai's broader region footprint gives it an advantage for latency-sensitive workloads or teams with data residency requirements in specific geographies.
Provider background: Together AI vs Vast.ai
Together AI was founded in 2022 and is headquartered in San Francisco, CA. Vast.ai was founded in 2017 and is headquartered in San Francisco, CA. Vast.ai has 5 years more operational history than Together AI, which may matter for teams evaluating provider stability and long-term contract risk. Use the live pricing table above to compare current on-demand and spot rates for specific GPU models, and the region map to verify coverage in your target geography.