# Callosum

**Source:** https://www.startuphub.ai/startups/callosum
**Profile type:** Startup

> A UK-based AI infrastructure startup building open, modular, and performant AI compute to challenge Silicon Valley's hardware monoculture.

## About

Callosum is an AI infrastructure startup based in London, UK, founded by brothers James and Liam Coe. The company aims to disrupt the current landscape of AI compute, which they describe as a 'monoculture'. They develop software designed to coordinate AI workloads across various types of chips, including Nvidia, AMD, AWS Trainium/Inferentia, Cerebras, and SambaNova, emphasizing multi-cloud and multi-chip collaboration. Callosum's technology reportedly delivers approximately twice the accuracy, seven times the speed, and a fourfold cost reduction compared to single-hardware solutions for complex enterprise tasks. The company is also collaborating with data center infrastructure vendors on new photonic interconnects and plans to expand into the US market while developing its own hardware infrastructure.

## Key facts

- **Slug:** callosum
- **Website:** https://www.callosum.ai
- **Location:** London, England, UK
- **Founded:** 2023-01-01 00:00:00
- **Operating status:** Inactive
- **Total funding:** $10M
- **Sectors / tags:** AI Infrastructure, AI Hardware, AI Compute, Neocloud, Data Center
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/callosum-ai/
  - Twitter: https://twitter.com/callosum_ai

## Frequently asked

### What does Callosum do?

Callosum is an AI infrastructure startup based in London, UK, founded by brothers James and Liam Coe. The company aims to disrupt the current landscape of AI compute, which they describe as a 'monoculture'. They develop software designed to coordinate AI workloads across various types of chips, including Nvidia, AMD, AWS Trainium/Inferentia, Cerebras, and SambaNova, emphasizing multi-cloud and multi-chip collaboration. Callosum's technology reportedly delivers approximately twice the accuracy, s…

### What is Callosum's revenue?

StartupHub estimates Callosum's annual revenue at $1.4M (range $686K to $5.2M, 27% confidence), based on comparable companies in the sector.

### What is Callosum's valuation?

StartupHub estimates Callosum's effective valuation at $955.4M (range $668.8M to $1.2B, 38% confidence), based on comparable companies in the sector.

### How much funding has Callosum raised?

Callosum has raised a total of $10M in funding. The most recent round on record is Seed.

### Where is Callosum headquartered?

Callosum is headquartered in London, England, UK.

### When was Callosum founded?

Callosum was founded in 2023.

### What industry does Callosum operate in?

Callosum operates in AI Infrastructure, AI Hardware, AI Compute, Neocloud, Data Center.

### What is Callosum's current status?

Callosum's current operating status is: Inactive.

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