lmms-eval
Multimodal Evaluation Toolkit for Text, Image, Video, and Audio Tasks
- Status
- Generally available
- Last checked
- Checked · Oct 15, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
lmms-eval is a comprehensive evaluation toolkit designed to assess the performance of multimodal models across various tasks including text, image, video, and audio. It provides developers with a unified framework to evaluate different aspects of their models efficiently.
lmms-eval stands out as a comprehensive and extensible toolkit for evaluating multimodal models, offering support across text, image, video, and audio tasks in one unified framework.
When it fits — and when it doesn’t
A good fit for
Research teams needing a comprehensive evaluation toolkit for multimodal tasks
Developers working on projects that require performance assessment of models across different modalities
Look elsewhere if
Teams requiring real-time model evaluation (batch processing only)
Projects with strict licensing requirements incompatible with NOASSERTION license
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited documentation for advanced use cases
Examples and tutorials are sparse for integrating custom metrics or handling complex multimodal tasks
- 02
Performance bottlenecks with large datasets
Evaluation processes can become slow when dealing with high-resolution video or audio data
What it does well
Unified evaluation framework for multimodal tasks
Supports text, image, video, and audio evaluations
Extensible architecture to integrate new evaluation metrics
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up lmms-eval
Setup steps, common gotchas and what to check after 30 days.