In a 60-day window - April 8 to May 19 - Anthropic, OpenAI, Cursor, and Cognition all shipped or upgraded cloud-hosted agent runtimes. Anthropic's Managed Agents now run in gVisor-isolated containers on Anthropic infrastructure with checkpointing, scoped credentials, MCP tunnels into private networks, and $0.08-per-agent-hour billing. Notion, Rakuten, and Sentry are already in production. The IDE-on-your-laptop era is ending faster than the local-vs-cloud-IDE debate ever finished.
Anthropic shipped Managed Agents on April 8 (Claude API agents, hosted in gVisor sandboxes on Anthropic infra, $0.08/agent-hour + token usage), then added MCP tunnels and self-hosted sandboxes on May 19 - closing the enterprise compliance gap that kept regulated buyers out.
Three production logos already on the platform: Notion, Rakuten, Sentry. OpenAI's Codex Cloud leads Terminal-Bench 2.0 at 77.3% and went token-based on April 2. Cursor Pro+ ($60/mo) and Devin both ship background agents that keep working while you're offline.
Strategic read: whoever owns the cloud-agent RUNTIME owns the developer. The IDE shrinks to a remote control. The laptop becomes optional. Same trajectory as Stadia for gaming and cloud GPUs for rendering - but now for the work itself.