Axios: Open-Source AI Push Rattles OpenAI-Anthropic VC Bet
OpenAI and Anthropic have captured over 60% of venture capital funding in the US during the first half of 2026. Analysts suggest that the rise of open-source AI models may threaten the dominance of these two companies and the venture capital strategy built around them.
The venture math on this AI cycle has rested on one uncomfortable fact, and Axios's Dan Primack laid it out plainly: OpenAI and Anthropic between them absorbed more than 60% of every venture dollar committed to US startups in the first half of 2026, per PitchBook. LPs stopped treating that concentration as a problem once VCs reframed the pitch as access rather than selection. The bet only works if those two names keep the lead. That is why the open-source shift Primack flags matters more than...
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