Aya Expanse: Combining Research Breakthroughs for a New Multilingual Frontier
Not on the map. Why?
Cited by 22 in LLM reasoning, but placed by its own abstract, which didn’t fit.
Abstract (arXiv)
We introduce the Aya Expanse model family, a new generation of 8B and 32B parameter multilingual language models, aiming to address the critical challenge of developing highly performant multilingual models that match or surpass the capabilities of monolingual models. By leveraging several years of research at Cohere For AI and Cohere, including advancements in data arbitrage, multilingual preference training, and model merging, Aya Expanse sets a new state-of-the-art in multilingual performance. Our evaluations on the Arena-Hard-Auto dataset, translated into 23 languages, demonstrate that Aya Expanse 8B and 32B outperform leading open-weight models in their respective parameter classes, including Gemma 2, Qwen 2.5, and Llama 3.1, achieving up to a 76.6% win-rate. Notably, Aya Expanse 32B outperforms Llama 3.1 70B, a model with twice as many parameters, achieving a 54.0% win-rate. In this short technical report, we present extended evaluation results for the Aya Expanse model family and release their open-weights, together with a new multilingual evaluation dataset m-ArenaHard.
Key facts. Cited by 121 papers in the map (data through 7 Oct 2026). Builds on 34 of its 62 references that are in the map. First posted on arXiv 5 Dec 2024.
Builds on
34 of 62 references.
References · 34
- 2023GPT-4 Technical Reportcited by 18,132
- 2022Training language models to follow instructions with human feedbackcited by 15,712
- 2024The Llama 3 Herd of Modelscited by 14,192
- 2021Training Verifiers to Solve Math Word Problemscited by 9,743
- 2023Direct Preference Optimization: Your Language Model is Secretly a Reward Modelcited by 7,916
- 2021RoFormer: Enhanced Transformer with Rotary Position Embeddingcited by 4,581
- 2024Qwen2 Technical Reportcited by 2,076
- 2020GLU Variants Improve Transformercited by 1,724
- 2024Gemma: Open Models Based on Gemini Research and Technologycited by 889
- 2023Gemini: A Family of Highly Capable Multimodal Modelscited by 810
- 2023TIES-Merging: Resolving Interference When Merging Modelscited by 795
- 2023AlpacaFarm: A Simulation Framework for Methods that Learn from Human Feedbackcited by 738
22 more
- 2023Language Models are Super Mario: Absorbing Abilities from Homologous Models as a Free Lunchcited by 679
- 2023Prometheus: Inducing Fine-grained Evaluation Capability in Language Modelscited by 558
- 2021The FLORES-101 Evaluation Benchmark for Low-Resource and Multilingual Machine Translationcited by 556
- 2024From Crowdsourced Data to High-Quality Benchmarks: Arena-Hard and BenchBuilder Pipelinecited by 484
- 2023Towards Measuring the Representation of Subjective Global Opinions in Language Modelscited by 424
- 2023Scalable Extraction of Training Data from (Production) Language Modelscited by 415
- 2023Low-Resource Languages Jailbreak GPT-4cited by 290
- 2021Few-shot Learning with Multilingual Language Modelscited by 278
- 2023Multilingual Jailbreak Challenges in Large Language Modelscited by 222
- 2024Global MMLU: Understanding and Addressing Cultural and Linguistic Biases in Multilingual Evaluationcited by 181
- 2024Aya Dataset: An Open-Access Collection for Multilingual Instruction Tuningcited by 174
- 2024INCLUDE: Evaluating Multilingual Language Understanding with Regional Knowledgecited by 78
- 2024The Multilingual Alignment Prism: Aligning Global and Local Preferences to Reduce Harmcited by 67
- 2024What Matters for Model Merging at Scale?cited by 52
- 2023Privacy in Large Language Models: Attacks, Defenses and Future Directionscited by 48
- 2023AfroBench: How Good are Large Language Models on African Languages?cited by 43
- 2023GPTAraEval: A Comprehensive Evaluation of ChatGPT on Arabic NLPcited by 37
- 2023Lost in Translation: Large Language Models in Non-English Content Analysiscited by 34
- 2023On Evaluating and Mitigating Gender Biases in Multilingual Settingscited by 31
- 2023A Material Lens on Coloniality in NLPcited by 19
- 2023Indian-BhED: A Dataset for Measuring India-Centric Biases in Large Language Modelscited by 17
- 2024Multilingual Arbitrage: Optimizing Data Pools to Accelerate Multilingual Progresscited by 6
Built on by
Citing papers per year: 2024: 2; 2025: 83; 2026: 36.
121 papers.
Sort:
By area:
- 2025MultiBLiMP 1.0: A Massively Multilingual Benchmark of Linguistic Minimal Pairscited by 65
- 2025Rope to Nope and Back Again: A New Hybrid Attention Strategycited by 46
- 2025Multilingual Machine Translation with Open Large Language Models at Practical Scale: An Empirical Studycited by 38
- 2025Enhancing LLM Reasoning with Iterative DPO: A Comprehensive Empirical Investigationcited by 36
- 2025How Reliable is Multilingual LLM-as-a-Judge?cited by 29
- 2025BenchMAX: A Comprehensive Multilingual Evaluation Suite for Large Language Modelscited by 23
- 2025Investigating Language Preference of Multilingual RAG Systemscited by 22
- 2025BOUQuET: dataset, Benchmark and Open initiative for Universal Quality Evaluation in Translationcited by 21
- 2025Localized Cultural Knowledge is Conserved and Controllable in Large Language Modelscited by 19
- 2025SEA-HELM: Southeast Asian Holistic Evaluation of Language Modelscited by 17
- 2025Commonsense Reasoning in Arab Culturecited by 16
- 2025Command R7B Arabic: A Small, Enterprise Focused, Multilingual, and Culturally Aware Arabic LLMcited by 16
38 more
- 2025Fann or Flop: A Multigenre, Multiera Benchmark for Arabic Poetry Understanding in LLMscited by 15
- 2025CULEMO: Cultural Lenses on Emotion -- Benchmarking LLMs for Cross-Cultural Emotion Understandingcited by 14
- 2025Zero-shot Benchmarking: A Framework for Flexible and Scalable Automatic Evaluation of Language Modelscited by 14
- 2025Krikri: Advancing Open Large Language Models for Greekcited by 13
- 2025NileChat: Towards Linguistically Diverse and Culturally Aware LLMs for Local Communitiescited by 13
- 2025Where to show Demos in Your Prompt: A Positional Bias of In-Context Learningcited by 13
- 2025DETree: DEtecting Human-AI Collaborative Texts via Tree-Structured Hierarchical Representation Learningcited by 12
- 2025SemEval-2025 Task 7: Multilingual and Crosslingual Fact-Checked Claim Retrievalcited by 11
- 2025BBQ-V: Benchmarking Visual Stereotype Bias in Large Multimodal Modelscited by 10
- 2025The Multilingual Divide and Its Impact on Global AI Safetycited by 10
- 2025Sacred or Synthetic? Evaluating LLM Reliability and Abstention for Religious Questionscited by 10
- 2025TALES: A Taxonomy and Analysis of Cultural Representations in LLM-generated Storiescited by 10
- 2026Back into Plato's Cave: Examining Cross-modal Representational Convergence at Scalecited by 10
- 2025When Life Gives You Samples: The Benefits of Scaling up Inference Compute for Multilingual LLMscited by 9
- 2025The Unreasonable Effectiveness of Model Merging for Cross-Lingual Transfer in LLMscited by 8
- 2025Global PIQA: Evaluating Commonsense Reasoning Across 100+ Languages and Culturescited by 8
- 2025Cetvel: A Unified Benchmark for Evaluating Language Understanding, Generation and Cultural Capacity of LLMs for Turkishcited by 7
- 2026EuroLLM-22B: Technical Reportcited by 7
- 2025From Guidelines to Practice: A New Paradigm for Arabic Language Model Evaluationcited by 6
- 2025From KMMLU-Redux to KMMLU-Pro: A Professional Korean Benchmark Suite for LLM Evaluationcited by 6
- 2025DCAD-2000: A Multilingual Dataset across 2000+ Languages with Data Cleaning as Anomaly Detectioncited by 5
- 2025Batayan: A Filipino NLP benchmark for evaluating Large Language Modelscited by 5
- 2025Cross-Lingual Transfer of Cultural Knowledge: An Asymmetric Phenomenoncited by 5
- 2025On Generalization across Measurement Systems: LLMs Entail More Test-Time Compute for Underrepresented Culturescited by 5
- 2025BALSAM: A Platform for Benchmarking Arabic Large Language Modelscited by 5
- 2025Tailored Emotional LLM-Supporter: Enhancing Cultural Sensitivitycited by 5
- 2025Alif: Advancing Urdu Large Language Models via Multilingual Synthetic Data Distillationcited by 5
- 2025Model-Aware Tokenizer Transfercited by 5
- 2026ReasonXL: Shifting LLM Reasoning Language Without Sacrificing Performancecited by 5
- 2025SynthDetoxM: Modern LLMs are Few-Shot Parallel Detoxification Data Annotatorscited by 4
- 2025MiLiC-Eval: Benchmarking Multilingual LLMs for China's Minority Languagescited by 4
- 2025Language Specific Knowledge: Do Models Know Better in X than in English?cited by 4
- 2025EXECUTE: A Multilingual Benchmark for LLM Token Understandingcited by 4
- 2025Massively Multilingual Adaptation of Large Language Models Using Bilingual Translation Datacited by 4
- 2025Group then Scale: Dynamic Mixture-of-Experts Multilingual Language Modelcited by 4
- 2025TokSuite: Measuring the Impact of Tokenizer Choice on Language Model Behaviorcited by 4
- 2025Centurio: On Drivers of Multilingual Ability of Large Vision-Language Modelcited by 3
- 2025Blessing of Multilinguality: A Systematic Analysis of Multilingual In-Context Learningcited by 3
50 most cited of 121 All 121 (JSON)
- 2026Multi-LLM Collaborative Alignment via Stackelberg Games30 Sep 2026
- 2026Turning Speech Language Models into Multilingual Listeners27 Sep 2026
- 2026AfriSyCo: Measuring Assertive Framing, Verification, and Wording Sensitivity Around African-Language Content15 Sep 2026
- 2026Latent-Space Intervention for Cross-Lingual Factual Consistency: Consistency Improvements without Accuracy Drops28 Aug 2026
- 2026Actions Speak Louder than Words: Measuring Cross-Lingual Policy Retention in Tool-Using Agents11 Aug 2026
- 2026From Values to Benchmarks: Evaluating Large Language Models for Governmental Use in Dutch10 Aug 2026
- 2026Cultivar: A Contrastive and Locale-Oriented Translation Benchmark for Investigating Contamination and Localisation Robustness10 Aug 2026
- 2026TQLite: Multi-LLM Jury Guided Distillation for Real-time MQM Translation Quality Evaluation4 Aug 2026
- 2026Gaokerena: A Small Persian Medical Language Model Family2 Aug 2026
- 2026Writing-System-Level Tokenizer Adaptation for Byte-Level BPE1 Aug 2026
- 2026ADAGE: A Language-Agnostic Pipeline for Analogical Reasoning Evaluation25 Jul 2026
- 2026Lower-Resource, Higher Scores: Language Bias in LLM Evaluators16 Jul 2026
38 more
- 2026RusFinChain: A Russian Benchmark for Verifiable Chain-of-Thought Reasoning in Finance with Fuzzy-Aligned Evaluation1 Jul 2026
- 2026Evidence for feature-specific error correction in LLMs23 Jun 2026
- 2026The Geometry of LLM-as-Judge: Why Inter-LLM Consensus Is Not Human Alignment2 Jun 2026
- 2026CARTE: A Benchmark for Mapping Language Model Knowledge Across France1 Jun 2026
- 2026Mixture of Complementary Agents for Robust LLM Ensemble21 May 2026
- 2026Why do Large Language Models Fail in Low-resource Translation? Unraveling the Token Dynamics of Large Language Models for Machine Translation8 May 2026
- 2026Beyond Semantics: Measuring Fine-Grained Emotion Preservation in Small Language Model-Based Machine Translation30 Apr 2026
- 2026Language Ideologies in a Multilingual Society: An LLM-based Analysis of Luxembourgish News Comments30 Apr 2026
- 2026Zero-shot Large Language Models for Automatic Readability Assessment27 Apr 2026
- 2026Multilinguality at the Edge: Developing Language Models for the Global South23 Apr 2026
- 2026Back into Plato's Cave: Examining Cross-modal Representational Convergence at Scale20 Apr 2026
- 2026ReasonXL: Shifting LLM Reasoning Language Without Sacrificing Performance14 Apr 2026
- 2026Evaluating In-Context Translation with Synchronous Context-Free Grammar Transduction8 Apr 2026
- 2026SiPaKosa: A Comprehensive Corpus of Canonical and Classical Buddhist Texts in Sinhala and Pali31 Mar 2026
- 2026Mending the Holes: Mitigating Reward Hacking in Reinforcement Learning for Multilingual Translation13 Mar 2026
- 2026Meenz bleibt Meenz, but Large Language Models Do Not Speak Its Dialect18 Feb 2026
- 2026Evaluating Monolingual and Multilingual Large Language Models for Greek Question Answering: The DemosQA Benchmark18 Feb 2026
- 2026Curriculum Learning and Pseudo-Labeling Improve the Generalization of Multi-Label Arabic Dialect Identification Models12 Feb 2026
- 2026Macaron: Controlled, Human-Written Benchmark for Multilingual and Multicultural Reasoning via Template-Filling11 Feb 2026
- 2026EuroLLM-22B: Technical Report5 Feb 2026
- 2026UrduBench: An Urdu Reasoning Benchmark using Contextually Ensembled Translations with Human-in-the-Loop28 Jan 2026
- 2026When Flores Bloomz Wrong: Cross-Direction Contamination in Machine Translation Evaluation28 Jan 2026
- 2026Beyond Factual QA: Mentorship-Oriented Question Answering over Long-Form Multilingual Content23 Jan 2026
- 2026Benchmarking Concept-Spilling Across Languages in LLMs18 Jan 2026
- 2025Korean Canonical Legal Benchmark: Toward Knowledge-Independent Evaluation of LLMs' Legal Reasoning Capabilities31 Dec 2025
- 2025Comparing Approaches to Automatic Summarization in Less-Resourced Languages30 Dec 2025
- 2025TokSuite: Measuring the Impact of Tokenizer Choice on Language Model Behavior23 Dec 2025
- 2025MiniLingua: A Small Open-Source LLM for European Languages15 Dec 2025
- 2025Multilingual Conversational AI for Financial Assistance: Bridging Language Barriers in Indian FinTech1 Dec 2025
- 2025TALES: A Taxonomy and Analysis of Cultural Representations in LLM-generated Stories26 Nov 2025
- 2025Estonian WinoGrande Dataset: Comparative Analysis of LLM Performance on Human and Machine Translation21 Nov 2025
- 2025Global PIQA: Evaluating Commonsense Reasoning Across 100+ Languages and Cultures28 Oct 2025
- 2025Quality-Aware Translation Tagging in Multilingual RAG system27 Oct 2025
- 2025PerCoR: Evaluating Commonsense Reasoning in Persian via Multiple-Choice Sentence Completion26 Oct 2025
- 2025Model-Aware Tokenizer Transfer24 Oct 2025
- 2025Enhancing Reasoning Skills in Small Persian Medical Language Models Can Outperform Large-Scale Data Training22 Oct 2025
- 2025DETree: DEtecting Human-AI Collaborative Texts via Tree-Structured Hierarchical Representation Learning20 Oct 2025
- 2025Zoom In Disparities in Healthcare LLM Q&A20 Oct 2025
50 newest of 121 All 121 (JSON)
- 2025Enhancing LLM Reasoning with Iterative DPO: A Comprehensive Empirical Investigationcited by 36
- 2025Commonsense Reasoning in Arab Culturecited by 16
- 2025When Life Gives You Samples: The Benefits of Scaling up Inference Compute for Multilingual LLMscited by 9
- 2025The Unreasonable Effectiveness of Model Merging for Cross-Lingual Transfer in LLMscited by 8
- 2025Global PIQA: Evaluating Commonsense Reasoning Across 100+ Languages and Culturescited by 8
- 2025On Generalization across Measurement Systems: LLMs Entail More Test-Time Compute for Underrepresented Culturescited by 5
- 2026ReasonXL: Shifting LLM Reasoning Language Without Sacrificing Performancecited by 5
- 2025Test-Time Scaling with Repeated Sampling Improves Multilingual Text Generationcited by 2
- 2025Korean Canonical Legal Benchmark: Toward Knowledge-Independent Evaluation of LLMs' Legal Reasoning Capabilitiescited by 2
- 2026UrduBench: An Urdu Reasoning Benchmark using Contextually Ensembled Translations with Human-in-the-Loopcited by 2
- 2025Multilingual LLMs Are Not Multilingual Thinkers: Evidence from Hindi Analogy Evaluationcited by 1
- 2025mSCoRe: a Multilingual and Scalable Benchmark for Skill-based Commonsense Reasoningcited by 1
12 most cited of 22 All 22 (JSON)
- 2026TQLite: Multi-LLM Jury Guided Distillation for Real-time MQM Translation Quality Evaluation4 Aug 2026
- 2026ADAGE: A Language-Agnostic Pipeline for Analogical Reasoning Evaluation25 Jul 2026
- 2026RusFinChain: A Russian Benchmark for Verifiable Chain-of-Thought Reasoning in Finance with Fuzzy-Aligned Evaluation1 Jul 2026
- 2026CARTE: A Benchmark for Mapping Language Model Knowledge Across France1 Jun 2026
- 2026ReasonXL: Shifting LLM Reasoning Language Without Sacrificing Performance14 Apr 2026
- 2026Macaron: Controlled, Human-Written Benchmark for Multilingual and Multicultural Reasoning via Template-Filling11 Feb 2026
- 2026UrduBench: An Urdu Reasoning Benchmark using Contextually Ensembled Translations with Human-in-the-Loop28 Jan 2026
- 2025Korean Canonical Legal Benchmark: Toward Knowledge-Independent Evaluation of LLMs' Legal Reasoning Capabilities31 Dec 2025
- 2025Estonian WinoGrande Dataset: Comparative Analysis of LLM Performance on Human and Machine Translation21 Nov 2025
- 2025Global PIQA: Evaluating Commonsense Reasoning Across 100+ Languages and Cultures28 Oct 2025
- 2025PerCoR: Evaluating Commonsense Reasoning in Persian via Multiple-Choice Sentence Completion26 Oct 2025
- 2025Enhancing Reasoning Skills in Small Persian Medical Language Models Can Outperform Large-Scale Data Training22 Oct 2025
12 newest of 22 All 22 (JSON)
- 2025MultiBLiMP 1.0: A Massively Multilingual Benchmark of Linguistic Minimal Pairscited by 65
- 2025Rope to Nope and Back Again: A New Hybrid Attention Strategycited by 46
- 2025Multilingual Machine Translation with Open Large Language Models at Practical Scale: An Empirical Studycited by 38
- 2025How Reliable is Multilingual LLM-as-a-Judge?cited by 29
- 2025BenchMAX: A Comprehensive Multilingual Evaluation Suite for Large Language Modelscited by 23
- 2025BOUQuET: dataset, Benchmark and Open initiative for Universal Quality Evaluation in Translationcited by 21
- 2025SEA-HELM: Southeast Asian Holistic Evaluation of Language Modelscited by 17
- 2025Command R7B Arabic: A Small, Enterprise Focused, Multilingual, and Culturally Aware Arabic LLMcited by 16
- 2025Fann or Flop: A Multigenre, Multiera Benchmark for Arabic Poetry Understanding in LLMscited by 15
- 2025CULEMO: Cultural Lenses on Emotion -- Benchmarking LLMs for Cross-Cultural Emotion Understandingcited by 14
- 2025Zero-shot Benchmarking: A Framework for Flexible and Scalable Automatic Evaluation of Language Modelscited by 14
- 2025Krikri: Advancing Open Large Language Models for Greekcited by 13
12 most cited of 86 All 86 (JSON)
- 2026Turning Speech Language Models into Multilingual Listeners27 Sep 2026
- 2026AfriSyCo: Measuring Assertive Framing, Verification, and Wording Sensitivity Around African-Language Content15 Sep 2026
- 2026Latent-Space Intervention for Cross-Lingual Factual Consistency: Consistency Improvements without Accuracy Drops28 Aug 2026
- 2026Actions Speak Louder than Words: Measuring Cross-Lingual Policy Retention in Tool-Using Agents11 Aug 2026
- 2026From Values to Benchmarks: Evaluating Large Language Models for Governmental Use in Dutch10 Aug 2026
- 2026Cultivar: A Contrastive and Locale-Oriented Translation Benchmark for Investigating Contamination and Localisation Robustness10 Aug 2026
- 2026Gaokerena: A Small Persian Medical Language Model Family2 Aug 2026
- 2026Writing-System-Level Tokenizer Adaptation for Byte-Level BPE1 Aug 2026
- 2026Evidence for feature-specific error correction in LLMs23 Jun 2026
- 2026The Geometry of LLM-as-Judge: Why Inter-LLM Consensus Is Not Human Alignment2 Jun 2026
- 2026Why do Large Language Models Fail in Low-resource Translation? Unraveling the Token Dynamics of Large Language Models for Machine Translation8 May 2026
- 2026Beyond Semantics: Measuring Fine-Grained Emotion Preservation in Small Language Model-Based Machine Translation30 Apr 2026
12 newest of 86 All 86 (JSON)