Zuhayeer Musa(@zuhayeer):What a $1m grant from 2023 at @AnthropicAI and @OpenAI is worth today. Anthropic: ~$51m OpenAI: ~$16m These figures are adjusted for dilution. Anthropic has had an incredible run in the last few years, and it clearly outpaced OpenAI in growth. Part of it is that OpenAI was already at a ~$30B valuation in 2023, while Anthropic was trailing at ~$4B. Anthropic’s valuation went up 235x from there. OpenAI’s went up ~28x. Anthropic diluted about twice as much in the same timeframe, ~78% vs 39% at OpenAI. You can view the timeline of some of the tender offers issued along the way too.

2026.08.09 23:11

What a $1m grant from 2023 at @AnthropicAI and @OpenAI is worth today. Anthropic: ~$51m OpenAI: ~$16m These figures are adjusted for dilution. Anthropic has had an incredible run in the last few years, and it clearly outpaced OpenAI in growth. Part of it is that OpenAI was already at a ~$30B valuation in 2023, while Anthropic was trailing at ~$4B. Anthropic’s valuation went up 235x from there. OpenAI’s went up ~28x. Anthropic diluted about twice as much in the same timeframe, ~78% vs 39% at OpenAI. You can view the timeline of some of the tender offers issued along the way too.