This Week in Startups
This Week in Startups

VCs Would Bet on Open-Source AI Over OpenAI and Anthropic | E2341

September 23, 2026 · 1 h 27 min

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Show notes

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Today’s show:

Anthropic and OpenAI released cheaper models on the same day with Claude Opus 5.5 and GPT-6, and these VCs would still bet on open source. Jason brings on Dave McClure of Practical Venture Capital, Jeff Clavier of Uncork Capital, and Jenny Fielding of Everywhere Ventures to discuss the argument for open-weight models over the frontier labs.

Learn why median seed valuations have more than tripled since 2017. Why does Dave say it's a buyer's market for secondaries right now? PLUS, does Meta's Muse leave any room for Instinct, and why are fintech and healthcare suddenly out of favor?

Guests:

Dave McClure on X: https://x.com/davemcclure?lang=en Practical Venture Capital: https://practicalvc.com/

Jeff Clavier on X: https://x.com/jeff Uncorked Capital: https://uncorkcapital.com/

Jenny Fiedling on X: https://x.com/jefielding Everywhere Ventures: https://www.everywhere.vc/

Relevant Links:

Instinct reportedly seeking $1B at a $10B valuation (report via The Information) → https://cryptobriefing.com/ai-assistant-startup-instinct-targets-10b-valuation-in-new-funding-talks-report/

Meta's Muse, the agent the panel sees as Instinct's biggest threat, now on Mac → https://aiweekly.co/alerts/meta-ships-muse-for-mac-agent-now-acts-in-native-macos-apps

Trump calls Jensen Huang onstage at the All-In Summit → https://thenextweb.com/news/trump-phoned-jensen-huang-onstage-at-the-all-in-summit-to-call-ai-fear-a-hoax

AI-assisted intel error nearly triggered a US intercept of a Chinese ship (CNN via gCaptain) → https://gcaptain.com/ai-error-nearly-triggered-u-s-intercept-of-chinese-ship-cnn-reports/

Bernie Sanders' 50% AI sovereign wealth fund bill + Altman meeting (Fortune) → https://fortune.com/2026/06/18/bernie-sanders-ai-fund-bill-sam-altman-1000-payments/

Stanley Druckenmiller's AI-written WSJ op-ed (Axios) → https://axios.com/2026/08/26/stanley-druckenmiller-ai-writing-wsj-op-ed

Claude Opus 5.5 and GPT-6 Sol/Luna launch the same day with price cuts (SiliconANGLE) → https://siliconangle.com/2026/09/22/anthropic-releases-claude-opus-5-5-and-openai-counters-with-two-cheaper-gpt-6-models/

Zipline: LAUNCH's "miss," later backed through the syndicate → https://www.fly

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