{"slug": "rivet-open-source-actor-orchestrator-beats-durable-objects", "title": "Rivet: Open-Source Actor Orchestrator Beats Durable Objects", "summary": "Rivet, an open-source actor orchestrator, gives each AI agent session a persistent lightweight process using 72 KB of RAM, a built-in SQLite database, WebSockets, and a 4.99ms p99 cold start, positioning it as an alternative to Cloudflare Durable Objects for durable agent state. Rivet frames durable state as the hidden cost of agent projects, citing session eviction by Cloudflare Durable Objects and blocking database writes mid-tool-call as the problems its actor model addresses without locking users to a cloud vendor.", "body_md": "Durable state is the hidden tax on every AI agent project. You build the smart part, then spend two sprints figuring out where the conversation lives when the process crashes, how to avoid blocking on a database write mid-tool-call, and why Cloudflare Durable Objects keep evicting your sessions at the worst possible moment. Rivet is the open-source answer: an actor orchestrator that gives each agent session a persistent, lightweight process — 72 KB of RAM, a built-in SQLite database, WebSockets, and a 4.99ms p99 cold start — without locking you to any cloud vendor. Actors, Not Functions Rivet’s core primitive […]\n\nThe post", "url": "https://wpnews.pro/news/rivet-open-source-actor-orchestrator-beats-durable-objects", "canonical_source": "https://byteiota.com/rivet-open-source-actor-orchestrator-beats-durable-objects/", "published_at": "2026-11-15 19:07:09+00:00", "updated_at": "2026-11-15 19:21:55.732295+00:00", "lang": "en", "topics": ["ai-agents", "ai-infrastructure", "developer-tools", "ai-tools"], "entities": ["Rivet", "Cloudflare", "Cloudflare Durable Objects", "SQLite"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/rivet-open-source-actor-orchestrator-beats-durable-objects", "markdown": "https://wpnews.pro/news/rivet-open-source-actor-orchestrator-beats-durable-objects.md", "text": "https://wpnews.pro/news/rivet-open-source-actor-orchestrator-beats-durable-objects.txt", "jsonld": "https://wpnews.pro/news/rivet-open-source-actor-orchestrator-beats-durable-objects.jsonld"}}