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Molmo2-4B

Ready
model path:accounts/fireworks/models/molmo2-4b

Molmo2 is a family of open vision-language models developed by the Allen Institute for AI (Ai2) that support image, video and multi-image understanding and grounding. Molmo 2 (4B) is Qwen 3-based – optimized for efficiency.

Molmo2-4B API Features

On-demand Deployment

Docs

On-demand deployments allow you to use Molmo2-4B on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.

Metadata

State
Ready
Created on
29 DEC, 2025
Kind
Base model
Provider
Allen Institute for AI

Specifications

Calibrated
No
Mixture-of-Experts
No
Parameters
4B

Supporting Functionality

Fine-tuning
Not Supported
Serverless
Not Supported
Context Length
36.8k tokens
Function Calling
Not Supported
Embeddings
Not Supported
Rerankers
Not Supported
Supporting image input
Supported