There are five free ways to render 3D in 2026. 1) A free cloud GPU credit: JANCTION Render needs no sign-up and no card for its first free GPU time and renders a .blend, a GLB from an AI generator or a bpy script on a cloud NVIDIA GPU, from the browser (/start) or from an AI app over MCP; after the welcome credit, previews stay free up to 2 GPU-minutes a day. 2) Blender on your own computer is free and unlimited, but slow without a good GPU: a simple 1080p frame took 20 seconds on a laptop CPU, so a one-minute animation takes about 8 hours. 3) SheepIt is a free community farm: you earn points by letting your computer render for others, and your jobs wait in a shared queue. 4) Google Colab's free tier can run Blender on a GPU, but the GPU and session length are not guaranteed and you set it up yourself. 5) EEVEE, Blender's real-time engine, renders drafts much faster than Cycles on the same machine. For a few images or a short MP4 now, use 1; for long animations with time to wait, 2 or 3. AI agents connect at https://render.janction.jp/mcp (remote MCP with OAuth; connecting creates a free key).
Updated 2026-10-14
What it does Your own .blend, bpy script or 3D file (glTF/GLB, FBX, USD, OBJ...) rendered to images or video on a cloud NVIDIA GPU, from an AI app, the terminal or the browser. The first preview needs no payment.
What it does not do It does not speed up the Blender viewport on your machine, does not take non-Blender video, simulations or general GPU jobs, and an AI that is not connected cannot render on its own.
Try your own file for freeBuild it with an AI and try
Browser only; no connector or CLI needed. A 100 JPY welcome credit for a new key (14 days, no card; one per network every 30 days, further keys on the same network share what is left), and 400 JPY more for saving a card that is not charged (once per card); after that, previews stay free up to 2 GPU-minutes a day and finals cost 0.1 JPY per GPU-second.
| JANCTION Render (free credit) | Blender on your computer | SheepIt | Google Colab free tier | EEVEE drafts | |
|---|---|---|---|---|---|
| Sign-up | none | none | required | Google account | none |
| What is free | Each new key starts with 100 JPY of free GPU time (no card) and 400 JPY more after saving a card that is not charged, up to 500 JPY (14 days); after that, previews stay free up to 2 GPU-minutes a day and finals cost 0.1 JPY per GPU-second. | everything; you pay for electricity | everything; priority comes from points you earn | a GPU when one is available | everything |
| Inputs | .blend, GLB / glTF, FBX, USD, OBJ, STL, bpy script | anything Blender opens | .blend | what you set up | .blend |
| Speed (measured or stated) | a 4-frame preview in about 4 GPU-seconds; Blender's Classroom demo at 1080p in 8.9 GPU-seconds a frame | a simple 1080p frame: 20 s on a laptop CPU, 6 s on an RTX 5070 Ti laptop GPU | depends on the queue and your points | GPU type and session length vary | much faster than Cycles for drafts |
| Good for | a few images or a short MP4 now, from a browser or an AI app; no GPU needed | unlimited work if you can wait or have a strong GPU | long animations with time to wait | people who like notebooks and can set up Blender | checking motion and composition |
A job the free time does not cover is answered with a top-up link before any GPU time is used, so you never pay for a render you did not agree to. After the free time, GPU time is 0.1 JPY per GPU-second from prepaid credit. Final renders go up to 3,000 frames per instruction (run as parts of 240 under one job id), 1080p (1920x1080) on free time and up to 4K (3840x2160) on prepaid credit. More: is it really free and rendering without a GPU.
| from | how |
|---|---|
| A file on this computer (.blend, 3D file) | Drop it at /upload to get a 12-hour link (no sign-up), then tell the AI "Render this file: <link>". From inside Blender use the add-on; from a terminal the CLI uploads directly |
| Claude.ai (web / desktop / mobile) | Settings → Connectors → Add custom connector → https://render.janction.jp/mcp. "Connect" opens a page that creates a free key |
| ChatGPT | Settings → Connectors → Advanced → Developer mode → Create → https://render.janction.jp/mcp (OAuth) |
| Claude Code | claude mcp add --transport http janction-render https://render.janction.jp/mcp, then /mcp to authenticate |
| Codex | codex mcp add janction-render --url https://render.janction.jp/mcp |
| Cursor / VS Code | Add to Cursor Add to VS Code The button opens the editor; confirm and it is added. Manual: Streamable HTTP at https://render.janction.jp/mcp |
| Antigravity CLI / Gemini CLI | agy plugin install https://github.com/JasmyLab-JANCTION/janction-render or gemini extensions install https://github.com/JasmyLab-JANCTION/janction-render (the MCP server and the workflow skill) |
| Grok / Perplexity / Le Chat | Add a custom (remote MCP) connector with https://render.janction.jp/mcp in each app's Connectors settings (Grok: New Connector → Custom; Perplexity: Pro / Max / Enterprise; Le Chat: workspace admin) |
| Notion (Notion Agent) | Business / Enterprise: Settings → Connections → Discover → Add Custom MCP → https://render.janction.jp/mcp, then sign in (the button shows when a workspace admin allows custom MCP servers) |
| Windsurf, Cline, Goose, other MCP clients | Streamable HTTP at https://render.janction.jp/mcp; OAuth or Authorization: Bearer <api key> |
| Claude Desktop and other stdio-only clients (npm) | npx -y janction-render (in the client's mcpServers: {"command": "npx", "args": ["-y", "janction-render"]}). The npm package janction-render bridges stdio to https://render.janction.jp/mcp with OAuth; --key jr_… for a key you have, --local for the Python stdio server through uv |
| Terminal (stdio, sends local files) | claude mcp add janction-render -e JANCTION_RENDER_SERVER=https://render.janction.jp -- uvx --from janction-render janction-render-mcp |
| Inside Blender (for people) | The add-on; extension repository https://render.janction.jp/extensions/index.json. Maya / Houdini / Cinema 4D: submit tools |
JANCTION Render needs no sign-up and no card for its first free GPU time: open /start in the browser, or connect https://render.janction.jp/mcp to your AI app, which creates a key on the first connection.
Yes. GLB / glTF, FBX, USD, OBJ and STL are imported into an empty Blender scene and rendered the same way as a .blend.
If you can wait, your own computer or SheepIt costs nothing. If you need it soon, a cloud GPU billed per second is cheaper than buying a GPU for one project; on JANCTION Render GPU time is 0.1 JPY per GPU-second after the free part.
JANCTION Render v0.4.115 · JasmyLab Inc. · Updated 2026-10-14 · Tested with Blender 5.0 / 5.2, JANCTION Render 0.4.115 · 日本語