OpenThaiGPT-1.5-72B

OpenThaiGPT-1.5-72B is a 72-billion-parameter Thai-centric open-source language model released in September 2024 by the OpenThaiGPT project, a collaboration of Thai researchers and institutions. It is fine-tuned from Qwen2.5-72B-Instruct on over 2,000,000 Thai instruction pairs using LoRA, adapting the base model to Thai language nuances and culture without full continued pretraining.

Benchmarks in the project's arXiv report (2411.07238) show it outperforming other open-source Thai LLMs on Thai exam tasks, and independent evaluations scored it near the top of Thai-language leaderboards. It supports multi-turn conversation, RAG integration, and tool calling, and is distributed via Hugging Face at openthaigpt/openthaigpt1.5-72b-instruct, with 7B and 14B siblings for smaller budgets.