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Technician in a cleanroom suit holding a silicon wafer in front of chip-making equipment

TSMC Anthropic OpenAI investment: board approves up to $1bn in stakes in the two AI developers

TSMC's board has approved up to US$500 million each for Anthropic shares at the IPO price and OpenAI preferred stock. Here is what the filing confirms and what it leaves out.

MTMainstream Tech·Nov 13, 2026·5 min read