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Mithril

Bid-based GPU spot market, formerly Foundry

MarketplaceInference

Mithril, renamed from Foundry in August 2025, runs a bid-based spot market: you set a bid, and workloads run while the clearing price is at or below it. It also sells market-priced flexible reservations with pause and return credits. Its pricing page shows 7-day spot averages, for example $1.51 per GPU-hour for a 1x H100 and about $2.63 per GPU-hour on 8x H100 instances.

Best for: Interruptible H100 and H200 jobs where price matters more than guaranteed uptime.

ClusterMAX 3.0: Not recommended – Underperforming

  • – Publishes prices
  • ✓ Serverless inference
  • – AMD GPUs
  • – European data centers
Visit Mithril

Facts checked November 9, 2026 against the sources listed below. Mithril does not pay to appear here.

1 Legal nameFoundry Technologies
2 HeadquartersNot disclosed
3 FoundedNot disclosed
4 Funding or listingPrivate. $80M seed and Series A as Foundry (Mar 2024).
5 How you rentMarketplace, Aggregator, Reserved clusters, Serverless inference
6 Minimum commitmentNone for spot; market-priced flexible reservations by term
7 InterconnectNot disclosed
8 OrchestrationKubernetes (hosted control plane), SkyPilot, CLI/API
9 GPUs offeredH100 SXM, H200
10 RegionsUS
11 CertificationsSOC 2 Type II
12 Customers and partnersClaims Arc Institute, Cursor and LG AI Research as users; Broad Institute case study (Feb 2026).

Published prices

Mithril does not publish on-demand prices. Ask for a quote.

Worth knowing before you sign

  • No fixed on-demand price; all published prices are spot averages, so none appear in our price table.
  • Rated “Not recommended – Underperforming” in ClusterMAX 2.0 and 3.0; SemiAnalysis describes it as a marketplace wrapping three Nebius availability zones.
  • ClusterMAX 2.0 reported a 3-month wait for access.

Go to Mithril's site

Sources

  1. Mithril pricing
  2. Mithril
  3. Mithril flexible reservations
  4. Mithril: Foundry is now Mithril
  5. Mithril: Introducing Foundry
  6. SemiAnalysis ClusterMAX 3.0 ratings
  7. SemiAnalysis ClusterMAX 3.0 report

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Compare with

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  • Nebius Full-stack AI cloud with published on-demand GPU prices (NASDAQ: NBIS)
  • Crusoe AI cloud with self-serve NVIDIA and AMD GPUs on its own data center campuses
  • Nscale European AI cloud selling GB300 and B200 capacity (S-1 filed for NYSE: NSCL)
  • Together AI AI cloud for GPU clusters and model inference