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edition 2026.09.20 · Sunday, September 20, 2026

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▸Anthropic raises $5B at $170B valuation▸OpenAI ships o3 with native tool-use▸Cursor crosses $500M ARR▸Meta open-sources Llama 4 reasoning weights▸YC W26 batch: 38% AI infra▸Vercel acqui-hires Linear AI team▸Supabase Realtime v3 ships native pgvector streaming▸Bun 1.3 native Postgres driver: 2.4× faster▸Stratechery: 'the end of horizontal SaaS'▸Anthropic raises $5B at $170B valuation▸OpenAI ships o3 with native tool-use▸Cursor crosses $500M ARR▸Meta open-sources Llama 4 reasoning weights▸YC W26 batch: 38% AI infra▸Vercel acqui-hires Linear AI team▸Supabase Realtime v3 ships native pgvector streaming▸Bun 1.3 native Postgres driver: 2.4× faster▸Stratechery: 'the end of horizontal SaaS'

▸ FUNDING · 3 stories today← all sections

The Leadsignal 60

FUNDING· signal 6023h ago

Week's Largest Funding Rounds: Temporal Technologies Leads With $550M AI Infrastructure Round

AI infrastructure company Temporal Technologies raised $550M, topping the week's largest U.S. startup rounds. Space vehicle developer Impulse Space also closed a $308M round.

Why it matters — Heavy institutional capital flowing to AI infrastructure signals strong demand for workflow/task queue platforms and distributed systems—areas where developer-tool builders can differentiate.

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FUNDING██████····23h ago

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Week's Largest Funding Rounds: Temporal Technologies Leads With $550M AI Infrastructure Round

Analysis of 25,000 Seed Applications: Go-to-Market and AI as Core Infrastructure Drive Fundability

Manus seeks $4B valuation in new $500M fundraise after Meta merger break