# Codeium vs GitHub copilot: who uses which

On usedby, 18 companies use Codeium and 40 use GitHub copilot. 1 company uses both, including Mercado Libre. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 30 of 58 public lines checked.

## Side by side

|  | [Codeium](https://www.usedby.ai/tools/codeium.md) | [GitHub copilot](https://www.usedby.ai/tools/github-copilot.md) |
|---|---|---|
| Public customers | 18 | 40 |
| Confirmed | 0 | 16 |
| Observed | 18 | 15 |
| Signals (job posts) | 0 | 9 |
| Top industries of customers | IT Services & System Integration (4), DevTools & Infrastructure (3), Aerospace & Defense (1) | Fintech & Payments (4), Automotive Manufacturing (3), Cybersecurity (2) |
| Category | AI Code Assistants | AI Code Assistants |
| Free trial | — | Free trial or free plan available. ([github.com](https://github.com/pricing), checked 2026-10-04) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Mercado Libre](https://www.usedby.ai/companies/mercado-libre.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- GitHub copilot: [ASOS](https://www.usedby.ai/case-studies/asos-github-copilot.md): **90%**: “That peer-led rollout helped ASOS reach over 90% Copilot adoption across the engineering team within months.” (published 2026-07-30)
- GitHub copilot: [Cathay](https://www.usedby.ai/case-studies/cathay-github-copilot.md): **1,000 developers**: “Cathay rolled out GitHub Copilot to more than 1,000 developers in just one week” (published 2025-10-27)

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Source: https://www.usedby.ai/compare/codeium-vs-github-copilot · How we check: https://www.usedby.ai/methodology