Category
Frontier Labs.
OpenAI, Anthropic, Google DeepMind, xAI
Capital in
~$52B↑
vs ~$50B
Revenue out
~$35B↑
vs ~$30B
Burn / rev
0.6
Lower means more capital out than in.
The read
The Anthropic April print is the headline: ~$30B ARR (with internal figures cited as high as $40B) and pre-emptive investor offers at $900B pre-money would put it ahead of OpenAI's $852B March valuation. Microsoft's Apr 29 disclosure of a $37B AI annual run rate (+123% YoY) is the cleanest public proxy for the OpenAI partnership revenue line and corroborates that frontier-lab revenue is compounding faster than burn. Q1's $172B+ in already-closed mega-rounds (OpenAI $122B, Anthropic $30B, xAI $20B) plus continued strategic capital from Amazon ($25B Anthropic) and Google ($40B Anthropic compute) extend top-3 runway materially even at projected ~$17B/yr OpenAI burn.
This week’s transactions
- Apr 29
Anthropic in talks for ~$50B raise at $900B pre-money; would top OpenAI
CNBC, Bloomberg, TechCrunch
$40-50B (talks, no term sheet) - Apr 29
Microsoft AI annual run rate $37B, +123% YoY (proxy for OpenAI partnership rev line)
Microsoft FY26 Q3 press release
$37B ARR - Apr 30
OpenAI confirms Stargate US footprint exceeds 10 GW ahead of plan, +3 GW in 90 days
OpenAI / DigiTimes
10 GW contracted
Trend across recent issues