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Render a Blender animation online and get an MP4 back

Updated 2026-10-01

Send the scene (a .blend, a bpy script or a 3D file) with a frame range and you get the frames rendered on an NVIDIA RTX PRO 6000 and joined into a video: janction-render render scene.blend --frames 1-96 --size 1280x720 --samples 64 --wait, or render_final(frame_start=1, frame_end=96, output='mp4') from an agent. Measured: about 2.4 GPU seconds per 720p frame at 64 samples on Cycles for a simple scene (24 frames = 59 s); EEVEE is about half per frame for a few dozen frames or more. The free beta renders up to 240 frames per job (split longer animations) at up to 1080p; outputs are mp4 (H.264), webm (VP9), prores (422 HQ), gif, webp or png / exr frames. Preview 4 frames first to check camera and motion.

Commands

janction-render preview scene.blend --frames 1-96               # 4 frames spread over the range, one sheet
janction-render render scene.blend --frames 1-96 --size 1280x720 --samples 64 --wait            # output.mp4
janction-render render scene.blend --frames 1-96 --engine eevee --output webm --wait            # cheaper per frame
janction-render render scene.blend --frames 1-96 --output prores --wait                         # for editing
janction-render render model.glb --frames 1-48 --orbit --environment studio --wait              # turntable of a model

From an agent the same is render_preview(frames='1-96') then render_final(frame_start=1, frame_end=96, width=1280, height=720, samples=64, output='mp4'); render_estimate first tells you the time and whether it fits today's quota.

How long it takes

render_estimate gives the number before rendering; once a scene has been rendered once, the estimate uses that scene's own measurement.

Frames are split into chunks and rendered in order; while a job runs, render_status shows frames done and the ETA. The benchmarks page has the per-frame table for several resolutions and sample counts.

Cycles or EEVEE

Cycles (default) is the path tracer: accurate light, slower. engine='eevee' is Blender's real-time rasterizer: about half the per-frame cost, but every job pays about 7 seconds of shader compilation, so it only pays off for a few dozen frames or more; previews stay on Cycles. HDRI presets work on both.

Outputs

Free beta (as of 2026-10-01): 10 GPU-minutes per key per day (20 per network), final renders up to 240 frames at 1080p. No sign-up: connecting creates a key. Inputs and results are deleted 24 hours after last use and never used for training. Paid plans will be announced on this site and in llms.txt before they start.

Connect

FAQ

My animation is longer than 240 frames

Render it in jobs of up to 240 frames (1-240, 241-480, ...) and join the videos, or request png frames and encode once. The cap is for the free beta.

Can I change the frame rate?

Yes: fps (default 24) is used when the frames are joined into mp4 / webm / prores.

Why preview first?

A preview renders 4 frames spread over the range in a few seconds, so camera, motion and lighting mistakes cost seconds instead of minutes.

Does motion blur or the compositor work?

Everything in the .blend that Blender renders in the background works, including motion blur and compositor nodes; the service only sets resolution, samples, denoising and the output format.

Related

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• Blender MCP server for rendering
• Claude Code + Blender: render on a cloud GPU
• Codex + Blender: render on a cloud GPU
• Blender rendering API
• ChatGPT + Blender: render without a GPU
• Claude + Blender: render without a GPU
• How to render Blender without a GPU
• Free Blender cloud rendering: what is actually free
• Run a bpy script on a cloud GPU
• Blender render farm APIs compared (2026)
• Blender MCP servers compared: local (blender-mcp, Blender Agent Bridge) vs cloud (Sceneplane, JANCTION Render)
• Google Colab vs JANCTION Render for Blender rendering
• FAQ
• Render a .blend file online on a GPU (free beta): upload, preview, final
• JANCTION Render vs SheepIt: free Blender rendering for AI agents vs a volunteer farm
• Blender add-on: render the open file on cloud GPUs (free beta)
• Render Maya, Houdini and Cinema 4D scenes on cloud GPUs with Cycles (free beta)

Overview · llms.txt

JANCTION Render v0.4.8 · JasmyLab Inc. · 日本語

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