OpenAI enhances Codex with secure self-hosted sandboxes via Ona acquisition

OpenAI acquired Ona, a 79-person cloud development environment provider, for an estimated $450 million to integrate its secure, self-hosted sandbox technology into Codex. The acquisition addresses enterprise concerns about autonomous AI agent safety by providing customer-controlled execution environments, enabling deployments previously blocked by risk and compliance teams. Ona's platform allows Codex agents to run in persistent, auditable sandboxes that reduce operational risk and meet enterprise security requirements.