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MarvinLabs vram_fit

org.marvinlabs/vram-fit · v0.1.0

Will a QLoRA fine-tune of gemma-3-4b-it fit your GPU? Verdicts from measured AMD and NVIDIA probes.

Connect Remote server

Terminal
claude mcp add --transport http vram-fit https://marvinlabs.org/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "vram-fit": {
      "url": "https://marvinlabs.org/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "vram-fit": {
      "type": "http",
      "url": "https://marvinlabs.org/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://marvinlabs.org/mcp

Tools 3 found in our last check

  • vram_fit

    Will this LoRA config train on a card with vram_gb GB? Returns verdict fits / tight / does_not_fit, the predicted peak in MB, the margin, how each part was derived, and any measured probe with the same settings.

  • vram_max_rank

    Largest LoRA rank (multiple of 8) that fits with margin on a card with vram_gb GB, and the largest that is tight (a real run may fit, the one-step probe would not).

  • vram_probes

    The raw measured probe rows (RX 7900 XTX and RTX 3060 Ti), filtered by any of the given settings. gpu matches part of the card name, e.g. '7900' or '3060'.

Details

Endpointhttps://marvinlabs.org/mcp (Streamable HTTP)
First published25 Oct 2026
Last updated25 Oct 2026
Registry nameorg.marvinlabs/vram-fit

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