OtherVerified
Reviewed and published by trentmaziarz, April 22, 2026. Discovered and drafted by our automated research pipeline.
Spline offers an AI Voice Assistant feature that lets designers embed a real-time voice-enabled AI character into their 3D scenes, powered by the user's own OpenAI API key. End users of the published 3D experience can then speak to the AI and receive spoken responses.
Details
The feature integrates with OpenAI's Realtime API to deliver low-latency conversational voice responses within a Spline scene. Designers configure the AI's personality, instructions, and trigger events inside the Spline editor; when the published scene is loaded by end users, microphone access is requested and voice interaction begins. The AI's audio spectrum output can be linked to variables that animate 3D objects in the scene. Users must supply their own paid OpenAI developer API key to use this feature.
Products affected
Spline Editor
Sources & Evidence
Company Disclosure
Cite this record
Trace Foundation. (2026). Spline: Spline offers an AI Voice Assistant feature that lets designers embed a real-time voice-enabled AI character into their 3D scenes, powered by the user's own OpenAI API key. End users of the published 3D experience can then speak to the AI and receive spoken responses (data as of 2026-04-22) [Data set record]. AI Trace. https://www.aitrace.org/r/practice/eb3491b6-2f9b-4d30-9a62-bee271e6fa20. Accessed September 8, 2026.
- Stable link
- https://www.aitrace.org/r/practice/eb3491b6-2f9b-4d30-9a62-bee271e6fa20
- Data as of
- April 22, 2026
- Last verified
- April 22, 2026
Other practices by Spline
Creative GenSpline offers an AI Texture Generation feature that creates seamless surface textures for 3D objects based on a user-written text prompt. The feature is available within the Spline editor to subscribers on Professional or Team plans with the Spline AI Add-on.Creative GenSpline offers an AI 3D Generation feature within its editor that lets users generate 3D mesh objects from text descriptions or 2D images. The feature is available to subscribers on Professional and Team plans who add the Spline AI Add-on.Creative GenSpline integrated Google's Gemini 2.5 Pro into its Hana canvas editor to let users generate interactive 2D and 3D scenes from text prompts. The integration began as a prototyping collaboration documented on Google's AI developer showcase in May 2025; by June 2025, a Google blog post confirmed Spline had been using the model in production.
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