Pith. sign in

REVIEW 5 cited by

Sailor2: Sailing in South-East Asia with Inclusive Multilingual LLMs

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2502.12982 v1 pith:IWVM27HE submitted 2025-02-18 cs.CL cs.AIcs.LG

classification cs.CLcs.AIcs.LG
keywords sailor2languagesmodelmultilingualcookbookinclusivelanguagellms
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Sailor2 is a family of cutting-edge multilingual language models for South-East Asian (SEA) languages, available in 1B, 8B, and 20B sizes to suit diverse applications. Building on Qwen2.5, Sailor2 undergoes continuous pre-training on 500B tokens (400B SEA-specific and 100B replay tokens) to support 13 SEA languages while retaining proficiency in Chinese and English. Sailor2-20B model achieves a 50-50 win rate against GPT-4o across SEA languages. We also deliver a comprehensive cookbook on how to develop the multilingual model in an efficient manner, including five key aspects: data curation, pre-training, post-training, model customization and evaluation. We hope that Sailor2 model (Apache 2.0 license) will drive language development in the SEA region, and Sailor2 cookbook will inspire researchers to build more inclusive LLMs for other under-served languages.

Discussion (0). Sign in to comment.

Forward citations

Cited by 5 Pith papers

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

  1. FineWeb2: One Pipeline to Scale Them All -- Adapting Pre-Training Data Processing to Every Language

    cs.CL 2025-06 conditional novelty 6.0 of 10

    An adaptive, per-language data filtering and deduplication pipeline produces multilingual LLM pre-training corpora that beat prior public datasets on 11 of 14 evaluated languages, and a 20TB, 1,868 language-script dat...

  2. OctoThinker: Mid-training Incentivizes Reinforcement Learning Scaling

    cs.CL 2025-06 conditional novelty 6.0 of 10

    A two-stage mid-training recipe on math-heavy corpora turns Llama-3.2 base models into ones whose RL math performance matches Qwen2.5 at the same size.

  3. Thunder-LLM: Efficiently Adapting LLMs to Korean with Minimal Resources

    cs.CL 2025-06 conditional novelty 6.0 of 10

    A cost-effective recipe consisting of tokenizer extension, continual pretraining, FP8 training, and SFT/DPO post-training yields Korean-English bilingual 8B models with top Korean benchmark scores.

  4. IndoSafety: Culturally Grounded Safety for LLMs in Indonesian Languages

    cs.CL 2025-06 conditional novelty 6.0 of 10

    IndoSafety, a culturally grounded safety benchmark for five Indonesian language varieties, shows unsafe response rates up to 40% in regional models and demonstrates that safety tuning on formal Indonesian transfers to...

  5. SEALGuard: Safeguarding the Multilingual Conversations in Southeast Asian Languages for LLM Software Systems

    cs.CL 2025-07 conditional novelty 5.0 of 10

    A LoRA-adapted SeaLLM model detects unsafe and jailbreak prompts in nine Southeast Asian languages with 97% recall and 98% F1 on the authors' new SEALSBench benchmark, far above zero-shot LlamaGuard.

Pith tools