Roblox adds prompt animation and R6 conversion in Studio beta
Roblox launches animation generation and R6 conversion in Studio beta. Test standard R15 output on your game’s rigs before replacing existing clips.
Roblox launched Prompt to Animation and Motion Rebuilder in Studio beta on November 5, 2026. Its November 5, 2026 announcement says developers can generate R15 motion from text or optionally convert existing R6 clips through Studio Assistant and Studio MCP. Motion Rebuilder creates a separate R15 asset, leaving the original R6 animation untouched.
Where the beta fits
According to Roblox, both tools produce standard humanoid R15 animations; Advanced R15 is not supported. Generated clips currently play incorrectly on R6 rigs. Custom rigs require starting with R15 output and retargeting through Adaptive Animation. Everyday humanoid actions work best, while complex swimming and sports movements remain difficult.
Roblox is not charging for generation at this time. During beta, an account can start up to four generations per minute, without a daily cap; limits may change before full release. Assistant converts clips individually, while MCP can process a list subject to rate limits. MCP accepts a requested length up to 10 seconds. High demand can stretch generation waits to a few minutes.
Test before replacing clips
Our recommendation is to compare a simple prompted action and an existing R6 clip this week. Enable Animation Generation in Assistant from Studio’s File menu under Beta Features, then enter /generate_animation in Assistant. Choose New Animation or Upscale Animation, refine the result, and use Save to Roblox to upload it.
We’d start by checking joint bends, foot placement, and loop transitions on the actual game rig. Roblox warns of reversed knee or elbow bends, stretching on skinned characters, and inconsistent Mannequin key-pose editing. Blocky R15 characters give the best conversion results. Blend and Bend controls can adjust converted motion; Clip Editor supports manual cleanup. Assistant key-pose editing is limited to tool-created clips.