Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source Google Zanzibar-inspired authorization service; fine-grained permissions for multi-tenant SaaS and AI agent access control at sub-millisecond latency.
Authzed (now SpiceDB) is an open-source, Google Zanzibar-inspired authorization service that enables developers to define and evaluate fine-grained permissions at scale, decoupling authorization logic from application code. Founded in 2021 and headquartered in San Francisco, Authzed built SpiceDB — an open-source implementation of Google's Zanzibar authorization system that powers Google Drive, Google Docs, and YouTube's permission systems — making enterprise-grade authorization accessible to development teams without Google-scale infrastructure.
Durable execution platform with $1.5B valuation; resilient distributed workflows surviving failures for companies like DoorDash and Netflix, becoming key AI agent orchestration infrastructure.
Temporal Technologies is an open-source durable execution platform that makes it possible to build reliable distributed applications and workflows that survive infrastructure failures — server crashes, network outages, and process restarts — without requiring developers to manage complex state persistence or distributed coordination themselves. Founded in 2019 by Maxim Fateev and Samar Abbas (who previously built Cadence workflow at Uber) and having raised over $200 million at a $1.5 billion valuation, Temporal has become the preferred durable execution platform for infrastructure engineers building complex distributed systems.
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