MolmoWeb-4B
transformerssafetensorsmolmo2image-text-to-textmultimodalolmomolmoconversationalcustom_codeendataset:allenai/MolmoWeb-SyntheticTrajdataset:allenai/MolmoWeb-HumanTrajsdataset:allenai/MolmoWeb-HumanSkillsdataset:allenai/MolmoWeb-SyntheticSkillsdataset:allenai/MolmoWeb-SyntheticQAdataset:allenai/MolmoWeb-SyntheticGroundarxiv:2601.10611arxiv:2604.08516base_model:Qwen/Qwen3-8Bbase_model:finetune:Qwen/Qwen3-8Blicense:apache-2.0region:us
Context
Unknown / Not disclosed
Max Output
Unknown / Not disclosed
Released
3/20/2026
Providers
1
Overview
MolmoWeb-4B is a large language model developed by Allen Institute for AI. It supports unknown context context and is available through 1 API provider(s).
Key Highlights
- Unknown / Not disclosed
Brand
Allen Institute for AI
Organization
Country: USA
View all models, pricing and details from Allen Institute for AI.
Specifications
Basic Information
| Model | MolmoWeb-4B |
| Brand | Allen Institute for AI |
| Version | Unknown / Not disclosed |
| Model Type | transformers |
| Status | stable |
| Released | 3/20/2026 |
| Popularity | 2535 |
Architecture
| Parameter Size | 4.9B |
| Architecture Type | molmo2 |
| Attention Mechanism | Unknown / Not disclosed |
| Tokenizer | Unknown / Not disclosed |
| Vocabulary Size | Unknown / Not disclosed |
Context & I/O
| Context | Unknown / Not disclosed |
| Max Output | Unknown / Not disclosed |
| Modalities | Unknown / Not disclosed |
| Languages | en |
Capabilities
| Vision | No |
| Audio | No |
| Reasoning | No |
| Function Call | No |
| MCP | No |
| JSON Mode | No |
| Embedding | No |
Training Data
| Training Dataset | Unknown / Not disclosed |
| Estimated Data Size | Unknown / Not disclosed |
| Knowledge Cutoff | Unknown / Not disclosed |
Inference & Deployment
| API Access | Yes |
| VRAM Estimate | Unknown / Not disclosed |
| Quantization Support | Unknown / Not disclosed |
| Hardware Requirements | Unknown / Not disclosed |
Safety & Compliance
| Safety Evaluations | Unknown / Not disclosed |
| Content Policy | Unknown / Not disclosed |
| Region Restrictions | Unknown / Not disclosed |
License & Pricing
| License | apache-2.0 |
| Commercial Use | Unknown / Not disclosed |
| Open Source | Yes |
Provider & Pricing
| Provider | Input | Output | Cache | Batch | Website |
|---|---|---|---|---|---|
| allenai | $0.000/1M | $0.000/1M | - | - | Visit Website |
Price Changes
No recorded price changes.
Benchmarks
No benchmark data available.
Changelog
- Page created / data imported9/23/2026
- Last updated9/23/2026
Frequently Asked Questions
What is MolmoWeb-4B?
MolmoWeb-4B is a large language model developed by Allen Institute for AI.
Who developed MolmoWeb-4B?
MolmoWeb-4B was developed by Allen Institute for AI. You can learn more on the brand page or official website.
What is the context length of MolmoWeb-4B?
The context length of MolmoWeb-4B has not been publicly disclosed.
How much does MolmoWeb-4B API cost?
API pricing for MolmoWeb-4B starts at $0.000/1M per 1M input tokens and $0.000/1M per 1M output tokens. See the pricing table above for provider-specific rates.