A $75M Series A led by Accel – the largest ever raised by a Polish-founded company. But the angel list tells the real story: Stewart Butterfield and Cal Henderson wrote checks into an AI agent that lives inside the product they built. When the Slack co-founders back the AI… https://t.co/O2DAz3qjmv
— Chubby♨️ (@kimmonismus) 19 mai 2026
A $75M Series A led by Accel – the largest ever raised by a Polish-founded company. But the angel list tells the real story: Stewart Butterfield and Cal Henderson wrote checks into an AI agent that lives inside the product they built. When the Slack co-founders back the AI