# openthai2.0-qwen3.8-27b by iApp Technology: Open Model
Source: https://savrn.com/models/openthai2-0-qwen3-8-27b
Markdown alternate of the page above; the site index is https://savrn.com/llms.txt

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## Runs On

What it takes to serve openthai2.0-qwen3.8-27b (27.8B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also fits |
| --- | --- | --- | --- | --- | --- |
| 16-bit | 55.6 GB | 66.7 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |
| 8-bit | 27.8 GB | 33.3 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |
| 4-bit | 13.9 GB | 16.7 GB | 1x [MI300X](https://savrn.com/ai-index/pricing/gpus/mi300x) (192 GB) Vultr | $1.85 | [1x H100](https://savrn.com/ai-index/pricing/gpus/h100) $1.99 · [1x MI325X](https://savrn.com/ai-index/pricing/gpus/mi325x) $2.00 |

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the [SAVRN Index](https://savrn.com/ai-index/pricing/gpus), read Oct 7, 2026.

[openthai2.0-qwen3.8-27b on every accelerator the SAVRN Index prices, at every precision](https://savrn.com/models/openthai2-0-qwen3-8-27b/gpus)

## Model Card

By iApp Technology, published under apache-2.0, revision c48ac175714d.

### OpenThai2.0 - Opensource Thai Knowledge, Document, and Agentic AI

Release notes - v2.0.3 (1 Sep 2026) — Thai factual recall repaired: the freerecall training data carried a phantom-citation register ("บทความระบุ...") and single-shape questions; cleaned and re-drilled with model-written paraphrases. Paraphrase battery 85/104 (from 79), Thai knowledge battery 21/21, OCR-Eval-104 CER 0.084 (from 0.093), HumanEval 0.982, IFEval-TH 0.837. Known residual: some numeric facts still scatter at temperature 0.7 — use low temperature for factual queries. - v2.0.2 (31 Aug 2026) — identifies as OpenThai 2.0 (iApp Technology + AIEAT) and adds a Thai-language safety guardrail; stock chat template. Printed-OCR CER about +0.02 vs v2.0.1, other benchmarks unchanged. - v2.0.1 (30 Aug 2026) — restores closed-book Thai knowledge lost in v2.0.0 (thanks to Dr. Panutat Tejasen's ThaiEval-2026 v3). - v2.0.0 — initial release. Earlier builds: revision tags v2.0.1, v2.0.0.

Per-version benchmark tables: CHANGELOGS.md.

โมเดล AI โอเพนซอร์ส ด้านความรู้ภาษาไทย เอกสารไทย และงานเอเจนต์ · เปิดตัวโดย iApp Technology ร่วมกับ สมาคมผู้ประกอบการปัญญาประดิษฐ์ประเทศไทย (AIEAT) · Apache 2.0

[Read the full model card (2,913 words)](https://savrn.com/models/openthai2-0-qwen3-8-27b/card)

## Configuration

Architecture

Qwen3_5ForConditionalGeneration

Context length (tokens)

262,144

Layers

64

Hidden size

5,120

Feed-forward size

17,408

Attention heads

24

Key/value heads

4

Head dimension

256

Vocabulary size

248,320

Model type

qwen3_5

## Identity and Version

Repository

iapp/openthai2.0-qwen3.8-27b

Publisher

iApp Technology

Task

Image and text to text

Modality

Image and text

Library

Not stated by the source

Parameters

27.8B parameters

Languages

th, en

Revision

c48ac175714d024605de02938974fd0d36c91eaa

First published

2026-08-19

Last updated

2026-10-04

## Files and Weights

49 files, 56.5 GB in total. The weights are 19 files totalling 56.5 GB in bin, pt, pth, safetensors.

Weights19 files · 56.5 GB

Configuration12 files · 202.7 KB

Tokenizer2 files · 20.0 MB

Documentation3 files · 41.4 KB

Other12 files · 1.3 MB

Repository1 file · 2.7 KB

Every file

| File | Type | Size | SHA-256 |
| --- | --- | --- | --- |
| adapter/adapter_model.safetensors | Weights | 934.0 MB | 25988c4cc05a |
| adapter/rng_state_0.pth | Weights | 15.2 KB | 45559f439153 |
| adapter/rng_state_1.pth | Weights | 15.2 KB | 8f7ded10956b |
| adapter/rng_state_2.pth | Weights | 15.2 KB | 592fc1f0141b |
| adapter/scheduler.pt | Weights | 1.5 KB | 85e1be670d09 |
| adapter/training_args.bin | Weights | 8.7 KB | d7a6d33f1d06 |
| model-00000.safetensors | Weights | 5.1 GB | c4449ad8b9a3 |
| model-00001.safetensors | Weights | 4.6 GB | 1cbe1fb78c5d |
| model-00002.safetensors | Weights | 4.5 GB | 634cce002008 |
| model-00003.safetensors | Weights | 4.6 GB | ac796ef97abd |
| model-00004.safetensors | Weights | 4.5 GB | 0c8d6537bf0c |
| model-00005.safetensors | Weights | 4.6 GB | 203404fb6e81 |
| model-00006.safetensors | Weights | 4.6 GB | b980c91ff706 |
| model-00007.safetensors | Weights | 4.6 GB | d2982b83ddd2 |
| model-00008.safetensors | Weights | 4.5 GB | d4ee02cbb2b9 |
| model-00009.safetensors | Weights | 4.6 GB | 8b59d10a2d90 |
| model-00010.safetensors | Weights | 4.6 GB | 832ce7f3fc61 |
| model-00011.safetensors | Weights | 4.6 GB | d57a3722e4e6 |
| model-00012.safetensors | Weights | 209.8 MB | 65f310d7ad56 |
| adapter/adapter_config.json | Configuration | 1.1 KB | — |
| adapter/additional_config.json | Configuration | 67 B | — |
| adapter/args.json | Configuration | 20.2 KB | — |
| adapter/trainer_state.json | Configuration | 21.3 KB | — |
| adapter/zero_to_fp32.py | Configuration | 34.9 KB | — |
| args.json | Configuration | 20.2 KB | — |
| config.json | Configuration | 3.7 KB | — |
| generation_config.json | Configuration | 214 B | — |
| model.safetensors.index.json | Configuration | 99.0 KB | — |
| preprocessor_config.json | Configuration | 390 B | — |
| processor_config.json | Configuration | 1.2 KB | — |
| video_preprocessor_config.json | Configuration | 385 B | — |
| CHANGELOGS.md | Documentation | 5.7 KB | — |
| README.md | Documentation | 30.5 KB | — |
| adapter/README.md | Documentation | 5.3 KB | — |
| adapter/latest | Other | 14 B | — |
| assets/banner.png | Other | 210.9 KB | 62e4c609cc70 |
| assets/bfcl.png | Other | 94.4 KB | — |
| assets/cases/docbench_parliament_year_60_00000903_p0181.jpg | Other | 100.4 KB | 88b52c2de4d9 |
| assets/cases/hw_cpeoph_20.jpg | Other | 3.5 KB | — |
| assets/cases/hw_disjoint_48.jpg | Other | 2.8 KB | — |
| assets/cases/wikisource_l4_ws4_53969.jpg | Other | 199.4 KB | bb2369c94fb2 |
| assets/scoreboard.png | Other | 232.4 KB | a65c681692f6 |
| assets/siamai-logo.png | Other | 45.1 KB | — |
| assets/social/hero-en.webp | Other | 175.5 KB | 9d30ebad1e16 |
| assets/social/hero-th.webp | Other | 193.8 KB | feaf7e906ef1 |
| chat_template.jinja | Other | 9.0 KB | — |
| .gitattributes | Repository | 2.7 KB | — |
| tokenizer.json | Tokenizer | 20.0 MB | 06b9509352d2 |
| tokenizer_config.json | Tokenizer | 1.2 KB | — |

## License and Download

License

apache-2.0

Access

Open weights, no gate

Download size

56.5 GB

[Download from iApp Technology](https://huggingface.co/iapp/openthai2.0-qwen3.8-27b)

Released by iApp Technology through its official repository on Hugging Face. [Read the license](https://www.apache.org/licenses/LICENSE-2.0).

## Built From

- Derived from [Qwen/Qwen3.8-27B](https://savrn.com/models/qwen3-8-27b)

## Memory Requirements

| Precision | Weights in memory |
| --- | --- |
| As published | 56.5 GB |
| 16-bit | 55.6 GB |
| 8-bit | 27.8 GB |
| 4-bit | 13.9 GB |

Weights only, from the published parameter count; the key-value cache and runtime add to this.

## Built on This Model

- Quantized from[openthai2.0-qwen3.8-27b-MLX-4bit](https://savrn.com/models/openthai2-0-qwen3-8-27b-mlx-4bit)
- Derived from[openthai2.0-qwen3.8-27b-MLX-4bit](https://savrn.com/models/openthai2-0-qwen3-8-27b-mlx-4bit)

## Questions About openthai2.0-qwen3.8-27b

### How much GPU memory does openthai2.0-qwen3.8-27b need?

About 66.7 GB at 16-bit and 16.7 GB at 4-bit: the weights (27.8B parameters) plus a working margin. A long context needs more.

### What is the cheapest GPU to run openthai2.0-qwen3.8-27b on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

### Can I use openthai2.0-qwen3.8-27b commercially?

Yes. openthai2.0-qwen3.8-27b is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

### What is openthai2.0-qwen3.8-27b's context length?

262,144 tokens, from the maximum position embeddings in its published configuration.

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## iApp Technology

[All models and datasets](https://savrn.com/model-publishers/iapp)

## Versions

- [c48ac175714d](https://savrn.com/models/openthai2-0-qwen3-8-27b/versions/c48ac175714d) · current 2026-10-04

## Explore More

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## Source

- Repository metadata, read 2026-10-04.
- [Hugging Face record](https://huggingface.co/iapp/openthai2.0-qwen3.8-27b)
- [How the hub is built](https://savrn.com/model-hub/methodology)
