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Run Molmo2-4B on Lium
Ai2 · Vision and text · 4.9B parameters · 19.4 GB FP32 weights · released 2025-12-14
It needs about 24 GB of VRAM. The cheapest setup that runs it is RTX 3090 (24 GB), from $0.18 per hour, billed per second.
Other GPUs that run it
How to run it
Rent the pod above, open a terminal over SSH or Jupyter and serve allenai/Molmo2-4B:
vllm serve allenai/Molmo2-4BClaude Code and Codex can do all of it through the Lium CLI.
Frequently asked questions
How much VRAM does Molmo2-4B need?
About 19.4 GB for the released FP32 weights, so plan on 24 GB with room for activations and KV cache at a short context. Longer contexts and bigger batches need more.
What GPU should I rent to run Molmo2-4B?
RTX 3090 (24 GB). On Lium that setup costs from $0.18 per hour, billed per second with no minimum.
For AI agents (CLI install, agent skill, headless signup): llms-full.txt