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NVIDIA highlights OpenThai 2.0 Legal at AI Day Singapore

· 3 min read
Kobkrit Viriyayudhakorn
CEO @ iApp Technology

OpenThai 2.0 Legal, the open-weight Thai legal model

On 22 September 2026, NVIDIA published its round-up of NVIDIA AI Day Singapore (Raffles City Convention Centre, 22–23 September). Under the heading "Southeast Asia Technology Leaders Build With NVIDIA Nemotron Open Models for Region-Specialized AI", Thailand is represented by iApp Technology, the Big Data Institute and OpenThai 2.0 Legal, our open-source Thai legal model.

What NVIDIA wrote​

"In Thailand, the Big Data Institute and iApp Technology, as members of the ThaiLLM Collaboration, are exploring Nemotron as a foundation model. With an initial focus on legal applications, iApp Technology is adapting Nemotron 3 Nano by fine-tuning OpenThai 2.0 Legal with Thai-language legal data using the NVIDIA NeMo framework. The model is released as open source for the Thai developer community and serves as the engine for Thanoy, the company's legal-assistant chatbot, which already serves approximately 43,000 users."

— NVIDIA, At AI Day Singapore, NVIDIA and Partners Showcase AI Advancements Across Southeast Asia, 22 September 2026

Where the model runs today​

ChannelWho it servesAccess
ThanoyThai legal-assistant chatbot, approximately 43,000 usersWeb
TH-AI Passport (AiPASS)National programme run by the Office of the National Digital Economy and Society Commission, Ministry of Digital Economy and Society; target of at least 5 million Thais aged 15 and overNo additional cost for passport holders
iApp hosted APIDevelopers, OpenAI-compatible endpointFree with an iApp API key until 30 September 2026, then 0.01 / 0.02 IC per 1K input / output tokens
Hugging FaceOrganisations that need to keep legal matters on their own serversOpen weights, free download

The TH-AI Passport listing went live the same week as the NVIDIA article (Thansettakij, 22 September 2026). Passport holders can ask questions on Thai law with cited statutes and sections, search and summarise Supreme Court judgments, and summarise contracts.

The model in brief​

OpenThai 2.0 Legal is a 30-billion-parameter Mixture-of-Experts model that activates about 3 billion parameters per token and runs on a single GPU with 24 GB of VRAM. Asked a question with no statute in the prompt, it recalls and cites the correct law and section from memory. On our published benchmark it has roughly four times the closed-book recall of Qwen 35B on the Civil and Commercial Code. Full results, the demo and the retrieval (RAG) tutorial are on the model page.

Its outputs are decision support, not legal advice. A qualified professional should verify each citation against the current law.

Built together​

OpenThai 2.0 Legal was built with the Artificial Intelligence Entrepreneur Association of Thailand (AIEAT) and the members of the ThaiLLM initiative, including the Big Data Institute (BDI), on NVIDIA Nemotron open models and the NVIDIA NeMo framework. We thank each of them, and the iApp team who trained, evaluated and shipped it.

Thai AI, built by Thais, for Thais.

Read more: Launch story · Press release · Model page and live demo

Press and partnership inquiries: sale@iapp.co.th · 086-322-5858