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  "markdown": "Venture firm.\n\nWebsite: https://www.blackstone.com\n\n## Companies on Anchor Terminal\n\n- **Anthropic**, Series F, September 2025, Series G, February 2026, Series H, May 2026\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\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- **Factory**, Series C, April 2026, $200M round, September 2026\n  - [Droid CLI](https://www.anchorterminal.com/tools/droid-cli.md), graded C, 59.1/100\n  - Source: https://factory.com/news/series-c\n\n## Where they invest\n\n- Agent harnesses, 2\n- Model APIs \u0026 inference, 1\n- Agent frameworks \u0026 SDKs, 1\n- Personal assistants, 1\n\n## Founders they backed\n\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- [Matan Grinberg](https://www.anchorterminal.com/people/matan-grinberg/), Factory\n- [Eno Reyes](https://www.anchorterminal.com/people/eno-reyes/), Factory\n\n## Questions\n\n### Which AI tools has Blackstone invested in?\n\nAnchor Terminal lists Anthropic, Anthropic, PBC and Factory backed by Blackstone.\n\n### How are Blackstone's companies graded?\n\nOn Anchor Terminal's benchmark, Claude API (BB, 77.3), Claude Agent SDK (BB, 70.1), Claude Code (C, 59.9), Claude Duet (F, 17.9) and Droid CLI (C, 59.1).\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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