01-ai/Yi-1.5-9B-Chat
Model card
Mirrored from Hugging Face Hub API · 2026-09-15
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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
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Chat models
Name Download Yi-1.5-34B-Chat • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-34B-Chat-16K • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-9B-Chat • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-9B-Chat-16K • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-6B-Chat • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel -
Base models
Name Download Yi-1.5-34B • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-34B-32K • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-9B • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-9B-32K • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel Yi-1.5-6B • 🤗 Hugging Face • 🤖 ModelScope • 🟣 wisemodel
Benchmarks
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Chat models
Yi-1.5-34B-Chat is on par with or excels beyond larger models in most benchmarks.
Yi-1.5-9B-Chat is the top performer among similarly sized open-source models.
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Base models
Yi-1.5-34B is on par with or excels beyond larger models in some benchmarks.
Yi-1.5-9B is the top performer among similarly sized open-source models.
Quick Start
For getting up and running with Yi-1.5 models quickly, see README.