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LLM Index

Nemotron vs. WizardLM

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

Attribute Nemotron WizardLM
Developer NVIDIA WizardLM
Current generation Nemotron 3 Ultra –
Initial release 2025-12-15 2023-05-26
Instruct tuned Yes Yes
Coding Yes No
Finetuning Yes Yes
Open source Yes Yes
License OpenMDW-1.1 Noncommercial
Model sizes 550B (55B active) 7B, 13B, 70B, 8x22B
Links
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Nemotron

Nemotron is NVIDIA's open model family for efficient reasoning, coding, long-context analysis, and agent orchestration. Nemotron 3 Ultra is the current flagship.

NVIDIA introduced the Nemotron 3 family in December 2025 with Nano, Super, and Ultra tiers. Nemotron 3 Ultra, released in June 2026, is a 550B-parameter hybrid Mamba-Transformer mixture-of-experts model with 55B active parameters and a one-million-token context window. It is optimized for long-running agent workflows, tool use, code, multilingual reasoning, and high-stakes retrieval. NVIDIA publishes the weights, training data, recipes, and fine-tuning workflows under the OpenMDW-1.1 license.

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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