collaborators

10 papers

cs.CL2026

PUMA: A Polish Benchmark for Culturally Grounded Multimodal Understanding

Sławomir Dadas, Michał Perełkiewicz, Rafał Poświata +3

Large language models are increasingly moving beyond text processing, adding support for other modalities such as images and audio. While text understanding and generation have bee…

cs.CL2026

PL-MTEB: Polish Massive Text Embedding Benchmark

Rafał Poświata, Sławomir Dadas, Michał Perełkiewicz

In this paper, we introduce the Polish Massive Text Embedding Benchmark (PL-MTEB), a comprehensive benchmark for text embeddings in the Polish language. PL-MTEB comprises 30 divers…

cs.CL2026

Long-Context Encoder Models for Polish Language Understanding

Sławomir Dadas, Rafał Poświata, Marek Kozłowski +4

While decoder-only Large Language Models (LLMs) have recently dominated the NLP landscape, encoder-only architectures remain a cost-effective and parameter-efficient standard for d…

cs.LG2026

Humanity's Last Exam

Long Phan, Alice Gatti, Ziwen Han +1144

Benchmarks are important tools for tracking the rapid advancements in large language model (LLM) capabilities. However, benchmarks are not keeping pace in difficulty: LLMs now achi…

cs.CL2025

The PLLuM Instruction Corpus

Piotr Pęzik, Filip Żarnecki, Konrad Kaczyński +50

This paper describes the instruction dataset used to fine-tune a set of transformer-based large language models (LLMs) developed in the PLLuM (Polish Large Language Model) project.…

cs.CL2025

MMTEB: Massive Multilingual Text Embedding Benchmark

Kenneth Enevoldsen, Isaac Chung, Imene Kerboua +83

Text embeddings are typically evaluated on a limited set of tasks, which are constrained by language, domain, and task diversity. To address these limitations and provide a more co…