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The February 2025 PolyAI Agent Studio release introduces new tools for knowledge base versioning, function latency control, and improved conversation review. Expand the items for details:
You can now use the Environments & versions tab to compare two knowledge base versions side-by-side and track modifications across the sandbox, pre-release, and live environments.Versions are displayed as split diffs.
  • Additions mean a new knowledge base entry.
  • Deletions means a knowledge base entry has been deleted.
  • Edits is the symbol applied to any existing but altered knowledge base entry. kb-diff
  • Quickly identify additions, deletions, and changes between knowledge base versions.
  • Easily attribute changes to their authors.
Visit the Environments & versions page for more details.
Improve the experience for users when a function takes longer than expected by playing filler utterances during the delay.latency-controlHow it works:
  • Set up delay responses that play while a function is still processing.
  • Define the initial delay before the first filler utterance is played.
  • Configure the interval between utterances to control pacing.
  • Specify the expected length of each utterance for smoother timing.
This feature ensures that users receive real-time feedback instead of silence, making interactions feel more natural. It’s useful for scenarios like booking confirmations or data lookups, where a response takes a few seconds.Visit the Function delay control page for more details.
Upload pre-recorded audio directly from the audio management resource in Agent Studio.audio-uploadKey benefits:
  • Easily replace TTS with high-quality voice actor recordings.
  • Improve voice consistency across different agent responses.
  • Initial release supports single file uploads, with bulk upload functionality coming soon.
Reference variant attributes dynamically within knowledge base responses.variantsHow it works:
  • Add variant attributes by typing / or selecting the + icon in content fields.
  • Reference existing attributes or create new ones dynamically.
  • Personalize responses by encoding structured variant data.
Transition functions are now managed centrally within the flow editor.transition-functionsKey benefits:
  • Prevents accidental deletions when modifying flows.
  • Enables reusing, duplicating, and managing transition functions from a single interface.
  • Streamlines agent configuration and debugging.
Visit the flows page for more details.
Users can now annotate user conversation turns for:
  • Missed topics
  • Incorrect ASR transcriptions
Agent conversation turns can be annotated for wrong information.review-annotations
You can now configure handoff using SIP, with INVITE, REFER, or BYE. You can also add SIP headers to the handoff template.sip-handoffHow it works:
  • The default handoff method is set to REFER.
  • You can adjust this to other methods according to the specific needs of your projects.
  • You can add SIP headers to the handoff.
Visit the call handoff page for more details.
A new Enterprise overview dashboard provides key operational insights and is the new homepage of a project.enterprise-dashboardKey benefits:
  • Monitor total calls, call duration, words generated, and key metrics.
  • Improve oversight of agent performance and containment rates.
  • Can be configured to work alongside custom dashboards for deeper analytics.