# M13

> M13's investments in AI tools on Anchor Terminal, Rime Labs, with each listing's grade and the founders behind it.

- Canonical: https://www.anchorterminal.com/investors/m13/
- Markdown: https://www.anchorterminal.com/investors/m13/index.md (~500 tokens)
- Slim: https://www.anchorterminal.com/investors/m13/index.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/investors/m13/index.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Venture firm.

Website: https://www.m13.co

## Companies on Anchor Terminal

- **Rime Labs**, Series A, July 2026, led a round
  - [Rime TTS API + MCP](https://www.anchorterminal.com/tools/rime-tts.md), graded C, 55.9/100
  - Source: https://www.m13.co/article/meet-rime-the-linguistics-first-voice-ai-designing-the-new-interface-for-computing

## Where they invest

- Text-to-speech, 1

## Founders they backed

- [Lily Clifford](https://www.anchorterminal.com/people/lily-clifford/), Rime Labs
- [Brooke Larson](https://www.anchorterminal.com/people/brooke-larson/), Rime Labs
- [Ares Geovanos](https://www.anchorterminal.com/people/ares-geovanos/), Rime Labs

## Questions

### Which AI tools has M13 invested in?

Anchor Terminal lists Rime Labs backed by M13.

### How are M13's companies graded?

On Anchor Terminal's benchmark, Rime TTS API + MCP (C, 55.9).

Investors are named from the companies' own announcements, the investors' own pages, Y Combinator's company pages, public filings and news reports of a round, each with its source. An investor isn't a sign of quality, and nobody can pay to be listed or to change a grade. To correct something or have a page removed, write to privacy@anchorterminal.com.

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp