What’s New: Week of August 17, 2026

  1. Assistant and Tool Versioning: Edits no longer go live immediately. Work in a draft, publish when you’re ready, and every publish creates a named version snapshot, so you can go back to your history to see what changed or roll back to a previous version as needed. You can also pin a specific tool version to an assistant.

  2. Call Artifact Upload Webhook: A new call.artifact.upload server message fires as each recording, packet capture, and log finishes uploading, and it includes the result for each, so you can process artifacts as they arrive instead of waiting for the end of call report.

  3. Azure Region Pinning for GPT-5 Models: You can now pin a GPT-5 model to a specific Azure region by adding the region to the model name after a colon (for example gpt-5:eastus2), which keeps requests in that region for lower latency and data residency. It uses Vapi’s platform Azure credential, so no Bring Your Own Key (BYOK) is needed.