Inngest · The durable-execution layer that agent builders reach for when "retry the whole thing" stops being an acceptable answer — and one of the few in that layer publishing its own reliability post-mortems.

Durable execution for backend work. You write ordinary functions in your own codebase, mark the bits that must not be repeated as steps, and Inngest runs them as an event-driven workflow that survives crashes, restarts and deploys — retries, sleeps, waits, fan-out, concurrency and idempotency handled by the platform rather than by a queue you maintain. The same machinery is aimed at AI agents (AgentKit) and now carries an evaluation and observability layer: scoring of agent output, AI cost/latency dashboards, session grouping, and experiments against live production traffic.

Sector

Durable workflows

Stage

Series A

On the roster since

15 Sept 2026