Internal forecasts indicate Anthropic’s annualized revenue run-rate could be between about $20 billion and $26 billion in 2026. Let's shoot for the middle, $23 billion
According to multiple articles, Anthropic expects to reduce its cash burn to around one-third of revenue in 2026.
This implies total spending is roughly revenue + cash burn ≈ $23 billion + $7.7 billion ≈ $30.7 billion
When you divide the total spending to the length of the whole year, $1.5 million would sustain Anthropic for roughly 0.43 hours, or about 26 minutes.