MMLongBench-Doc
We show this table for reference; we do not rank on it.
A long-document multimodal benchmark for grounded reasoning over extended document contexts.
Benchmark score on MMLongBench-Doc — September 27, 2026
We compile the MMLongBench-Doc rows from provider self-reports. Nemotron 3 Nano Omni 30B A3B leads the table at 57.5%. We do not use these results to rank models overall.
1 modelMultimodal & GroundedCurrentDisplay onlyUpdated September 27, 2026
Benchmark score table (1 model)
ScoreAbout MMLongBench-Doc
Year
2026
Tasks
Long document understanding
Format
Document-grounded reasoning
Difficulty
Long-context document reasoning
MMLongBench-Doc is designed to test whether a model can maintain grounded understanding across large document contexts rather than only short OCR-style snippets.
Freshness and provenance
Version
MMLongBench-Doc 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
Questions
What does MMLongBench-Doc measure?
A long-document multimodal benchmark for grounded reasoning over extended document contexts.
Which model scores highest on MMLongBench-Doc?
Nemotron 3 Nano Omni 30B A3B by NVIDIA currently leads with a score of 57.5% on MMLongBench-Doc.
How many models are evaluated on MMLongBench-Doc?
1 AI models have been evaluated on MMLongBench-Doc on BenchLM.
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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