Quant	Model Size	lm_head
2.2	10049 MB	6
2.5	11195 MB	6
3.0	13193 MB	6
3.5	15187 MB	6
3.75	16186 MB	6
4.0	17183 MB	6
4.25	18179 MB	6
5.0	21171 MB	6
6.0	25231 MB	8
6.5	27111 MB	8
8.0	29540 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 • 🤖 ModelScope
Yi-1.5-34B-Chat-16K	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-9B-Chat	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-9B-Chat-16K	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-6B-Chat	• 🤗 Hugging Face • 🤖 ModelScope

Base models

Name	Download
Yi-1.5-34B	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-34B-32K	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-9B	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-9B-32K	• 🤗 Hugging Face • 🤖 ModelScope
Yi-1.5-6B	• 🤗 Hugging Face • 🤖 ModelScope

Benchmarks

Chat models

Yi-1.5-34B-Chat is on par with or excels beyond larger models in most benchmarks.

image/png

Yi-1.5-9B-Chat is the top performer among similarly sized open-source models.

image/png
Base models

Yi-1.5-34B is on par with or excels beyond larger models in some benchmarks.

image/png

Yi-1.5-9B is the top performer among similarly sized open-source models.

image/png

Quick Start

For getting up and running with Yi-1.5 models quickly, see README.

Zoyd/01-ai_Yi-1.5-34B-Chat-16K-4_25bpw_exl2

Intro

Models

Benchmarks

Quick Start

Zoyd/
01-ai_Yi-1.5-34B-Chat-16K-4_25bpw_exl2