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Ola: Pushing the Frontiers of Omni-Modal Language Model

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arxiv 2502.04328 v3 pith:B7DNT5MK submitted 2025-02-06 cs.CV cs.CLcs.MMcs.SDeess.ASeess.IV

classification cs.CVcs.CLcs.MMcs.SDeess.ASeess.IV
keywords omni-modalmodellanguagemodelsunderstandingmodalitiesperformancespecialized
verification ladder T0 review T1 audit T2 compute T3 formal
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Recent advances in large language models, particularly following GPT-4o, have sparked increasing interest in developing omni-modal models capable of understanding more modalities. While some open-source alternatives have emerged, there is still a notable lag behind specialized single-modality models in performance. In this paper, we present Ola, an Omni-modal Language model that achieves competitive performance across image, video, and audio understanding compared to specialized counterparts, pushing the frontiers of the omni-modal language model to a large extent. We conduct a comprehensive exploration of architectural design, data curation, and training strategies essential for building a robust omni-modal model. Ola incorporates advanced visual understanding and audio recognition capabilities through several critical and effective improvements over mainstream baselines. Moreover, we rethink inter-modal relationships during omni-modal training, emphasizing cross-modal alignment with video as a central bridge, and propose a progressive training pipeline that begins with the most distinct modalities and gradually moves towards closer modality alignment. Extensive experiments demonstrate that Ola surpasses existing open omni-modal LLMs across all modalities while achieving highly competitive performance compared to state-of-the-art specialized models of similar sizes. We aim to make Ola a fully open omni-modal understanding solution to advance future research in this emerging field. Model weights, code, and data are open-sourced at https://github.com/Ola-Omni/Ola.

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Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    SAVVY-Bench tests audio-visual LLMs on dynamic 3D spatial questions, and the SAVVY pipeline, combining visual tracks with spatial audio and global mapping, lifts Gemini-2.5-pro accuracy from 50.9% to 58.0%.

  3. Audio-Visual Flamingo: Open Audio-Visual Intelligence for Long and Complex Videos

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    AV-Flamingo is an open audio-visual language model that outperforms similarly sized open models on many long-video understanding benchmarks, using a new 7M-question dataset and timestamped reasoning.

  4. Conversational Human Audio-visual Talking Dialogue Generation

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    CHAT generates mutually responsive dyadic audio-visual dialogue clips from a single text prompt and yields a 50k synthetic pre-training set that improves facial reaction models on REACT 2024.

  5. FutureOmni: Evaluating Future Forecasting from Omni-Modal Context for Multimodal LLMs

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    FutureOmni, a 919-video, 1,034-question audio-visual future-forecasting benchmark, shows top MLLMs reach only 64.8% accuracy, and OFF tuning improves open models.

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  8. HumanPCR: Probing MLLM Capabilities in Diverse Human-Centric Scenes

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    A hierarchical benchmark for multimodal models on human-centric visual understanding finds frontier models average under 60% and miss question-uncued visual evidence, with test-time scaling helping only marginally.

  9. Towards Video Thinking Test: A Holistic Benchmark for Advanced Video Reasoning and Understanding

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  10. HumanOmniV2: From Understanding to Omni-Modal Reasoning with Context

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    Requiring omni-modal models to summarize context before reasoning, with LLM-judged context and logical rewards, improves human-intent reasoning benchmarks.

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    A 3B agent trained with supervised tool-use traces and reinforcement learning answers week-long egocentric video questions by dynamically selecting hierarchical retrieval, video-LLM, and VLM tools.

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    Fine-tuning LLMs on extra modalities improves some knowledge tasks but degrades reasoning and instruction-following; weighted model merging preserves language ability better than training one model on all modalities.

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