{ "data": null, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/people/brandon-yang/", "json": "https://www.anchorterminal.com/people/brandon-yang/index.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/people/brandon-yang/index.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/people/brandon-yang/index.min.md" }, "markdown": "Co-founder.\n\nBrandon Yang is a co-founder of Cartesia, which builds real-time voice AI models such as Sonic text to speech and Ink speech to text. Cartesia says its founding team met as PhD students at Stanford AI Lab, where they developed state space models.\n\n- X: https://x.com/bclyang\n\n## What Brandon builds\n\n- [Cartesia Ink](https://www.anchorterminal.com/tools/cartesia-ink-stt.md), graded B, 68/100, in Speech-to-text. Cartesia's hosted speech-to-text API. Ink 2 transcribes live audio in five languages over a WebSocket with built-in turn detection, and the older Ink Whisper model transcribes uploaded files in about 100 languages. Co-founder, researched 2026-10-27.\n- [Cartesia Sonic TTS API + MCP](https://www.anchorterminal.com/tools/cartesia-tts.md), graded B, 64/100, in Text-to-speech. Sonic text-to-speech, currently `sonic-3.6` in 44 languages, over `/tts/bytes`, `/tts/sse` and a WebSocket that takes streamed LLM text with contexts and word timestamps. Co-founder, researched 2026-10-27.\n- [Cartesia Voice Cloning API + MCP](https://www.anchorterminal.com/tools/cartesia-voice-cloning.md), graded C, 59.7/100, in Voice cloning \u0026 custom voices. Instant voice clones for Sonic from 10 to 60 seconds of audio, and Pro Voice Clones fine-tuned on 30 minutes or more, trained in up to 3 hours. Co-founder, researched 2026-10-27.\n\n## Works with\n\n- [Albert Gu](https://www.anchorterminal.com/people/albert-gu/), Co-founder and Chief Scientist\n- [Arjun Desai](https://www.anchorterminal.com/people/arjun-desai/), Co-founder\n- [Karan Goel](https://www.anchorterminal.com/people/karan-goel/), Founder and CEO\n\n## Backed by\n\n- [Kleiner Perkins](https://www.anchorterminal.com/investors/kleiner-perkins/)\n- [Index Ventures](https://www.anchorterminal.com/investors/index-ventures/)\n- [Lightspeed Venture Partners](https://www.anchorterminal.com/investors/lightspeed-venture-partners/)\n- [Factory](https://www.anchorterminal.com/investors/factory/)\n- [Conviction](https://www.anchorterminal.com/investors/conviction/)\n- [General Catalyst](https://www.anchorterminal.com/investors/general-catalyst/)\n- [A* Capital](https://www.anchorterminal.com/investors/a-capital/)\n- [SV Angel](https://www.anchorterminal.com/investors/sv-angel/)\n\n## Questions\n\n### Who is Brandon Yang?\n\nBrandon Yang is a co-founder of Cartesia, which builds real-time voice AI models such as Sonic text to speech and Ink speech to text. Cartesia says its founding team met as PhD students at Stanford AI Lab, where they developed state space models.\n\n### What does Cartesia make?\n\nAnchor Terminal lists Cartesia Ink, Cartesia Sonic TTS API + MCP and Cartesia Voice Cloning API + MCP from Cartesia. Cartesia's hosted speech-to-text API. Ink 2 transcribes live audio in five languages over a WebSocket with built-in turn detection, and the older Ink Whisper model transcribes uploaded files in about 100 languages.\n\n### Who has invested in Cartesia?\n\nThe sources our research read name Kleiner Perkins, Index Ventures, Lightspeed Venture Partners, Factory, Conviction, General Catalyst, A* Capital and SV Angel.\n\n### How are Brandon's tools graded?\n\nCartesia Ink is graded B, 68 out of 100; Cartesia Sonic TTS API + MCP is graded B, 64 out of 100; Cartesia Voice Cloning API + MCP is graded C, 59.7 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://cartesia.ai/company\n- https://x.com/krandiash\n- https://x.com/_albertgu\n- https://www.linkedin.com/in/arjun-desai-4a731ba4\n- https://x.com/bclyang\n- https://www.cartesia.ai/company\n- https://www.cartesia.ai/\n- https://www.linkedin.com/company/cartesia-ai/\n- https://docs.cartesia.ai/\n- https://help.cartesia.ai/\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-28", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "People building AI tools", "url": "https://www.anchorterminal.com/people/" }, { "name": "Brandon Yang", "url": "" } ], "description": "Brandon Yang is co-founder. Cartesia Ink, Cartesia Sonic TTS API + MCP and Cartesia Voice Cloning API + MCP on Anchor Terminal, with grades, an about and public profiles.", "facts": null, "h1": "Brandon Yang", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/people/brandon-yang/", "published": "", "section": "people", "title": "Brandon Yang, Co-founder | Anchor Terminal", "toc": null, "updated": "2026-10-28", "url": "https://www.anchorterminal.com/people/brandon-yang/" }, "tokens": { "markdown": 1200, "slim": 980 }, "version": 1 }