Multimodal Benchmark

English TTS UTMOSv2

English TTS UTMOSv2 as evaluated on the LFM3-Omni-2B card: UTMOSv2 speech quality score on a 1-5 scale, higher is better.

Category

Multimodal

Score type

index

Scale

5.0

higher is better

Models tested

2

What is English TTS UTMOSv2?

English TTS UTMOSv2 is a benchmark for handling several input types together (images, documents, text). The official description says: "English TTS UTMOSv2 as evaluated on the LFM3-Omni-2B card: UTMOSv2 speech quality score on a 1-5 scale, higher is better". Below we describe in simple words what benchmarks of this type generally examine.

What does it test?

English TTS UTMOSv2 measures handling several input types together (images, documents, text). In detail, it checks:

  • questions that mix text with images or document pages
  • reading and extracting information from screenshots and scans
  • understanding layout, titles, logos and figures in real documents
  • staying accurate when the text content alone is not enough

How to read the score

The score is a composite index published by the benchmark organiser rather than a plain percentage. Interpret it only against the other models in the table — higher is better.

Official methodology note: English TTS UTMOSv2 as evaluated on the LFM3-Omni-2B card: UTMOSv2 speech quality score on a 1-5 scale, higher is better.

Frequently asked questions

What is the English TTS UTMOSv2 benchmark?

English TTS UTMOSv2 is a benchmark for handling several input types together (images, documents, text). The official description says: 'English TTS UTMOSv2 as evaluated on the LFM3-Omni-2B card: UTMOSv2 speech quality score on a 1-5 scale, higher is better'. Below we describe in simple words what benchmarks of this type generally examine.

What does English TTS UTMOSv2 test?

English TTS UTMOSv2 mainly measures handling several input types together (images, documents, text). Concretely, it checks: questions that mix text with images or document pages; reading and extracting information from screenshots and scans; understanding layout, titles, logos and figures in real documents.

How is the English TTS UTMOSv2 score calculated?

The score is a composite index published by the benchmark organiser rather than a plain percentage. Interpret it only against the other models in the table — higher is better. The declared maximum score of this benchmark is 5.0.

Where do I get English TTS UTMOSv2 data and scores?

The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/english-tts-utmosv2/scores) or pull it directly from the Open LLM Radar API with any HTTP client.

Model scores 2 models tested

Reset
# Model Score Date Source Verified
1 LFM3-Audio-2B
LiquidAI
3.83 idx
— Report Verified
2 LFM3-Omni-2B
LiquidAI
3.8 idx
— Report Verified