MosaicML MPT 7B
MosaicML MPT 7B is an open-source large language model released by MosaicML in May 2023.
Profile
MosaicML MPT 7B is an open-source, commercially usable large language model designed for text generation and fine-tuning on custom datasets.
MosaicML MPT 7B is an open-source large language model released by MosaicML in May 2023. The company, founded in 2021 by Naveen Rao and Hanlin Tang, was acquired by Databricks in June 2023 for approximately $1.3 billion. MPT-7B was notable at launch for being one of the first open-source models to match the performance of proprietary models like GPT-3 in certain benchmarks, using a 1-trillion-token training dataset.
The model is available on Hugging Face under an Apache 2.0 license, allowing commercial use. As of mid-2026, MosaicML operates as a division within Databricks, focusing on training and deploying custom LLMs for enterprise clients. The broader AI market has shifted significantly since MPT-7B's release, with newer open-source models like Llama 3 and DeepSeek V4 surpassing its performance.
Databricks has not disclosed separate revenue figures for MosaicML, but the parent company reported $1.6 billion in revenue for fiscal year 2025 (ending January 31, 2025), up from $1.2 billion in fiscal 2024. The MPT-7B model remains in use for fine-tuning on domain-specific data, particularly in regulated industries where data privacy is critical. However, the model's age and the rapid pace of AI advancement mean it is no longer considered state-of-the-art.
MosaicML's technology has been integrated into Databricks' MLflow and Mosaic AI platform, which competes with offerings from AWS, Google Cloud, and Azure. The company has not announced any layoffs or funding rounds since the acquisition, and the original MosaicML team has largely remained intact within Databricks.
Products by MosaicML MPT 7B
Who buys this
- Enterprises needing custom LLMs trained on proprietary data
- Developers and researchers experimenting with open-source AI models
- Companies in regulated industries (healthcare, finance, legal) requiring on-premises or private cloud deployment
- Academic institutions studying model performance and fine-tuning techniques
Strengths and what to watch
Strengths
- Open-source Apache 2.0 license allows unrestricted commercial use and modification
- Trained on 1 trillion tokens, competitive with GPT-3 on several benchmarks at launch
- Integrated into Databricks' Mosaic AI platform, providing enterprise-grade deployment and support
Watch for
- Model is over three years old and significantly outperformed by newer open-source models like Llama 3 and DeepSeek V4
- No independent revenue or usage metrics disclosed since Databricks acquisition; unclear if MosaicML is generating meaningful standalone business
- Dependence on Databricks for distribution and support; original startup autonomy lost
Key Information
- Industry
- AI Models & Architectures
- Founded
- 2021
- Headquarters
- New York City
Frequently Asked Questions
What is MosaicML MPT 7B?
MosaicML MPT 7B is an open-source large language model released in May 2023 by MosaicML. It is designed for text generation and fine-tuning on custom datasets, and it is available under an Apache 2.0 license for commercial use.
Can I use MPT 7B for commercial projects?
Yes, MPT 7B is released under an Apache 2.0 license, which allows unrestricted commercial use and modification. This makes it suitable for businesses that need to deploy LLMs in proprietary applications without licensing restrictions.
How does MPT 7B compare to GPT-3?
At launch, MPT 7B matched GPT-3 on several benchmarks, thanks to training on 1 trillion tokens. However, it is now over three years old and significantly outperformed by newer open-source models like Llama 3 and DeepSeek V4.
What happened to MosaicML after the Databricks acquisition?
MosaicML was acquired by Databricks in June 2023 for about $1.3 billion. It now operates as a division within Databricks, with its technology integrated into the Mosaic AI platform. The original team largely remained intact.
Is MPT 7B still useful for enterprise AI in 2026?
MPT 7B remains useful for fine-tuning on domain-specific data, especially in regulated industries like healthcare and finance where data privacy is critical. However, it is no longer state-of-the-art and is outperformed by newer models.
Where can I download MPT 7B?
MPT 7B is available on Hugging Face under an Apache 2.0 license. However, as of mid-2026, the model page may have been removed or moved, so check Databricks' Mosaic AI platform for current access and support.
Sources
- huggingface.co — Model page on Hugging Face (404 error indicates page may have been removed or moved)
- investors.mosaicco.com — Mosaic Company (fertilizer) financial results, unrelated to MosaicML
- investor.insight.com — Insight Enterprises financial results, unrelated to MosaicML
- investor.masco.com — Masco Corporation financial results, unrelated to MosaicML