Tech-heavy South Korea's KOSPI gained more than 4% in early Asian trading, while Japan's Nikkei rose 1.9%. (EPA Images pic)SINGAPORE: Asian stocks surged on Tuesday as AI bellwether Anthropic's eagerly anticipated IPO filing lifted risk appetite ahead of tech earnings that will be a test for the AI trade, and central bank meetings that will influence near-term interest rates.

Claude-owner Anthropic disclosed steep loss and red-hot revenue growth in its filing for a US initial public offering, as investors increasingly dissect the potential payoff from massive AI spending and its profitability.

Also boosting sentiment was Meta Platforms' plans to raise up to US$95 billion in its largest-ever equity fundraising.