Is there a GPU cloud marketplace where I can compare B200, GB200, and GB300 prices across multiple providers in one place?

Teams shopping Blackwell often want a single screen that lists B200, GB200, and GB300 prices across every provider, the way a flight aggregator lists fares. Those aggregators exist, but they answer a narrower question than they appear to. GPU marketplaces aggregate published starting prices across providers into one view, but those numbers are envelopes that drift with stock and terms, so a marketplace is a shortlisting tool, not a source of the rate you will actually pay. This guide shows what a marketplace can and cannot tell you, and how to turn a one-screen comparison into a verified quote.

What a GPU marketplace actually shows

Aggregator sites collect provider-published list prices for chips like B200 and GB200 and present them side by side, which is genuinely useful for a first pass. What they show is the range and who carries what, not a bookable rate.

Two limits matter before you trust the number. First, the prices are starting or list rates, so a "from $X" figure excludes minimum terms, region locks, and reserved discounts that change the real cost. Second, availability lags: a marketplace may list a chip that the provider actually shows as out of stock, waitlisted, or custom-terms-only. Aggregated GPU prices are an envelope for shortlisting, not a bookable rate, because they omit commitment terms, current stock, and the reserved discounts that decide the invoice. Use the marketplace to narrow the field, then confirm each shortlisted rate on the provider's own page.

Why the three chips behave differently in a marketplace

B200, GB200, and GB300 do not sit at the same point in the supply cycle, so a marketplace comparison across them can mislead if you read the rows as equivalent:

• B200: Widely listed, but often under limited availability or custom terms. Public single-GPU rates exist, but stock varies sharply by provider and region.
• GB200 NVL72: A rack-scale system, so most "on-demand" access is short-notice allocation against reserved pools, not elastic spot capacity. Marketplace rates for it are often custom.
• GB300 NVL72: Largely pre-order, so many marketplace entries are placeholders or "contact sales" rather than a bookable per-GPU-hour price.

Reading these as three comparable rows hides that one is roughly buyable, one is allocation-based, and one is a reservation. A single-GPU B200 rate and a rack-scale GB200 rate are not the same unit of compute, so compare within a chip class, not across them.

Marketplace versus direct provider pricing

A marketplace and a direct provider answer different questions. Use the frame below to know which tool to reach for.

Source	What it gives you	What to confirm before you rely on it
Aggregator marketplace	Cross-provider price range, who carries what	Real stock, commitment terms, region
Direct provider page	Bookable starting rate and availability status	Reserved vs on-demand, current stock
Provider quote / sales	The actual invoice rate for your usage	Term length, GPU count, storage and egress

The pattern is consistent: a marketplace narrows the field, a provider page confirms the rate, and a quote sets the invoice. Skipping the middle step is where budgets go wrong, because the envelope on the aggregator is rarely the number you sign.

Using published pricing instead of a marketplace guess

Once a marketplace has shortlisted options, verify them against pricing published directly by the provider. We publish dedicated NVIDIA GPU pricing on our own pages, giving you a first-party confirmation layer that marketplace estimates cannot provide.

In our current published listings, H100 is listed at from $2.00, H200 at from $2.60, B200 at from $4.00 under Limited Availability, and GB200 NVL72 at from $8.00 per GPU-hour Available Now, while GB300 NVL72 is shown as pre-order, so you can confirm each rate and status on the GMI Cloud pricing page instead of relying on a third-party aggregate. Check the current numbers on our GPU infrastructure (https://www.gmicloud.ai/en/gpus) and pricing (https://www.gmicloud.ai/en/pricing), since Blackwell pricing and stock move quickly and a marketplace snapshot can be stale. We are a direct provider, not a reseller aggregator, so the listed rate is the starting point for a real quote rather than an envelope. When your workload is sustained production inference, our Prime Inference (https://www.gmicloud.ai/en/models/prime-inference) provides reserved GPU capacity with single-tenant isolation, and committed pricing is set against your forecast rather than a marketplace average. Start a real quote in our console (https://console.gmicloud.ai) or contact our sales team.

Shortlist on the marketplace, sign on the source

If you pick a Blackwell provider off a marketplace price alone, you risk budgeting against a rate that excludes the commitment terms, stock, and discounts that decide your invoice. Use the aggregator for what it is good at, seeing the range and who carries each chip, then verify every shortlisted rate on the provider's own page and turn it into a quote with term, GPU count, and region attached. Compare within a chip class rather than across B200, GB200, and GB300 as if they were equivalent, and re-check live pricing at order time, because the marketplace shows you the envelope and only the source shows you the price.