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LLM Index

FLAN-UL2 vs. WizardLM

A side-by-side comparison of release history, capabilities, licensing and model sizes.

Attribute FLAN-UL2 WizardLM
Developer Google WizardLM
Current generation – –
Initial release 2023-03-03 2023-05-26
Instruct tuned Yes Yes
Coding No No
Finetuning Yes Yes
Open source Yes Yes
License Apache 2.0 Noncommercial
Model sizes 20B 7B, 13B, 70B, 8x22B
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FLAN-UL2

Similar to FLAN-T5, FLAN-UL2 is a model based on Google's popular T5 architecture with an upgraded pre-training procedure dubbed UL2. On most NLU benchmarks, FLAN-UL2 outperforms FLAN-T5 by a significant margin.

Further reading

WizardLM

WizardLM is a variant of LLaMA trained with complex instructions.

WizardLM is a LLM based on LLaMA trained using a new method, called Evol-Instruct, on complex instruction data. By using AI to "evolve" instructions, WizardLM outperforms similar LLaMA-based LLMs trained on simpler instruction data. On the 6th of July, 2023, WizardLM V1.1 was released with significantly improved performance, and as of 15 April 2024, WizardLM-2 was released with state-of-the-art performance.

Further reading

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Other FLAN-UL2 comparisons

Other WizardLM comparisons