Temporal Technologies raised $300 million in Series D funding at a $5 billion valuation, led by Andreessen Horowitz, as enterprises grapple with the fundamental reliability crisis holding back AI agent deployments in production environments.

The round—which included Lightspeed Venture Partners, Sapphire Ventures and existing investors like Sequoia—validates the market’s urgent need for infrastructure that ensures AI agents can execute complex, long-running workflows without failing midstream. While AI models become increasingly capable, the systems around them struggle with real-world execution challenges.

Meta’s agreement to acquire Singapore-based AI agent platform Manus for over $2 billion represents one of the most significant infrastructure moves in enterprise AI this year — completed in just 10 days and demonstrating how quickly the market is shifting from agent development to execution-proven platforms.

The acquisition timeline reveals the urgency: Manus was actively raising capital at a $2 billion valuation when Meta approached, negotiations concluded within 10 days, and the deal marks Meta’s largest AI acquisition to date. This speed signals that major platforms are no longer waiting for agent capabilities to mature — they’re acquiring systems that already demonstrate commercial execution at scale.