Both companies' aggressive fundraising and revenue trajectories in large language model development have kept trader consensus evenly split at market-implied odds near 50 percent. Anthropic's May 2026 Series H at a $965 billion post-money valuation and its Q3 revenue of $16.8 billion, up 46 percent sequentially with adjusted profitability, briefly positioned it ahead of OpenAI's $852 billion March mark and roughly $50 billion annualized run rate. However, OpenAI's reported talks for a $30 billion-plus pre-IPO bridge at around $1.4 trillion pre-money, combined with enterprise growth targeting a $70 billion run rate by year-end, have offset that lead. Key swing factors include Anthropic's November IPO pricing—now discussed by some investors near $1.5 trillion rather than $2 trillion amid moderating quarterly growth—and any confirmed OpenAI funding close or model releases that could shift relative multiples before October resolution.