---
license: apache-2.0
---
**Exllamav2** quant (**exl2** / **4.25 bpw**) made with ExLlamaV2 v0.0.21
Other EXL2 quants:
| **Quant** | **Model Size** | **lm_head** |
| ----- | ---------- | ------- |
|
**[2.2](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-2_2bpw_exl2)** | 2900 MB | 6 |
|**[2.5](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-2_5bpw_exl2)** | 3171 MB | 6 |
|**[3.0](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-3_0bpw_exl2)** | 3669 MB | 6 |
|**[3.5](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-3_5bpw_exl2)** | 4162 MB | 6 |
|**[3.75](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-3_75bpw_exl2)** | 4411 MB | 6 |
|**[4.0](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-4_0bpw_exl2)** | 4657 MB | 6 |
|**[4.25](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-4_25bpw_exl2)** | 4906 MB | 6 |
|**[5.0](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-5_0bpw_exl2)** | 5648 MB | 6 |
|**[6.0](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-6_0bpw_exl2)** | 6687 MB | 8 |
|**[6.5](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-6_5bpw_exl2)** | 7178 MB | 8 |
|**[8.0](https://huggingface.co/Zoyd/01-ai_Yi-1.5-9B-Chat-16K-8_0bpw_exl2)** | 8328 MB | 8 |
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# Intro
Yi-1.5 is an upgraded version of Yi. It is continuously pre-trained on Yi with a high-quality corpus of 500B tokens and fine-tuned on 3M diverse fine-tuning samples.
Compared with Yi, Yi-1.5 delivers stronger performance in coding, math, reasoning, and instruction-following capability, while still maintaining excellent capabilities in language understanding, commonsense reasoning, and reading comprehension.
Model | Context Length | Pre-trained Tokens
| :------------: | :------------: | :------------: |
| Yi-1.5 | 4K, 16K, 32K | 3.6T
# Models
- Chat models
| Name | Download |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Yi-1.5-34B-Chat | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-34B-Chat-16K | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-9B-Chat | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-9B-Chat-16K | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-6B-Chat | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
- Base models
| Name | Download |
| ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Yi-1.5-34B | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-34B-32K | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-9B | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-9B-32K | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
| Yi-1.5-6B | • [🤗 Hugging Face](https://huggingface.co/collections/01-ai/yi-15-2024-05-663f3ecab5f815a3eaca7ca8) • [🤖 ModelScope](https://www.modelscope.cn/organization/01ai) |
# Benchmarks
- Chat models
Yi-1.5-34B-Chat is on par with or excels beyond larger models in most benchmarks.
![image/png](https://cdn-uploads.huggingface.co/production/uploads/656d9adce8bf55919aca7c3f/KcsJ9Oc1VnEmfCDEJc5cd.png)
Yi-1.5-9B-Chat is the top performer among similarly sized open-source models.
![image/png](https://cdn-uploads.huggingface.co/production/uploads/656d9adce8bf55919aca7c3f/xf6pLg5jqRCwjlh6m3t6_.png)
- Base models
Yi-1.5-34B is on par with or excels beyond larger models in some benchmarks.
![image/png](https://cdn-uploads.huggingface.co/production/uploads/656d9adce8bf55919aca7c3f/BwU7QM-03dZvZzwdIE1xY.png)
Yi-1.5-9B is the top performer among similarly sized open-source models.
![image/png](https://cdn-uploads.huggingface.co/production/uploads/656d9adce8bf55919aca7c3f/y-EYSYPT-3aWLJ0x8R94F.png)
# Quick Start
For getting up and running with Yi-1.5 models quickly, see [README](https://github.com/01-ai/Yi-1.5).