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.

The currency markets are muted ahead of policy decisions from the Federal Reserve, European Central Bank and Bank of Japan, with economists expecting all three to stand pat on interest rates, leaving the focus on comments from policymakers to gauge the rates outlook.