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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 achieves stronger performance in coding, math, reasoning, and instruction following, while still maintaining excellent capabilities in language understanding, commonsense reasoning, and reading comprehension.
Model | Context Length | Pre-trained Tokens
|---|---|---
Yi-1.5 | 4K |3.6T 