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  "markdown": "Venture firm.\n\nWebsite: https://www.xnlp.com\n\n## Companies on Anchor Terminal\n\n- **Formagrid Inc (Airtable)**, Series F, December 2021, led a round\n  - [Airtable](https://www.anchorterminal.com/tools/airtable.md), graded BB, 70.9/100\n  - Source: https://www.airtable.com/newsroom/company/series-f\n- **Anthropic**, Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round\n  - [Claude API](https://www.anchorterminal.com/tools/anthropic-api.md), graded BB, 77.3/100\n  - [Claude Agent SDK](https://www.anchorterminal.com/tools/claude-agent-sdk.md), graded BB, 70.1/100\n  - [Claude Code](https://www.anchorterminal.com/tools/claude-code.md), graded C, 59.9/100\n  - Source: https://www.anthropic.com/news/anthropic-raises-series-f-at-usd183b-post-money-valuation\n- **Anthropic, PBC**, Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round\n  - [Claude Duet](https://www.anchorterminal.com/tools/claude-duet.md), graded F, 17.9/100\n  - Source: https://www.anthropic.com/news/anthropic-raises-series-f-at-usd183b-post-money-valuation\n\n## Where they invest\n\n- Spreadsheets \u0026 operational tables, 1\n- Model APIs \u0026 inference, 1\n- Agent frameworks \u0026 SDKs, 1\n- Agent harnesses, 1\n- Personal assistants, 1\n\n## Founders they backed\n\n- [Howie Liu](https://www.anchorterminal.com/people/howie-liu/), Formagrid Inc (Airtable)\n- [Dario Amodei](https://www.anchorterminal.com/people/dario-amodei/), Anthropic\n- [Daniela Amodei](https://www.anchorterminal.com/people/daniela-amodei/), Anthropic\n- [Tom Brown](https://www.anchorterminal.com/people/tom-brown/), Anthropic\n- [Jack Clark](https://www.anchorterminal.com/people/jack-clark/), Anthropic\n- [Jared Kaplan](https://www.anchorterminal.com/people/jared-kaplan/), Anthropic\n- [Sam McCandlish](https://www.anchorterminal.com/people/sam-mccandlish/), Anthropic\n- [Chris Olah](https://www.anchorterminal.com/people/chris-olah/), Anthropic\n- [Karan Ahuja](https://www.anchorterminal.com/people/karan-ahuja/), Anthropic, PBC\n\n## Questions\n\n### Which AI tools has XN invested in?\n\nAnchor Terminal lists Formagrid Inc (Airtable), Anthropic and Anthropic, PBC backed by XN.\n\n### How are XN's companies graded?\n\nOn Anchor Terminal's benchmark, Airtable (BB, 70.9), Claude API (BB, 77.3), Claude Agent SDK (BB, 70.1), Claude Code (C, 59.9) and Claude Duet (F, 17.9).\n\nInvestors 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.\n",
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