Monday, May 13, 2024

Introducing Phi-3: Redefining what’s potential with SLMs


We’re excited to introduce Phi-3, a household of open AI fashions developed by Microsoft. Phi-3 fashions are the most succesful and cost-effective small language fashions (SLMs) accessible, outperforming fashions of the identical measurement and subsequent measurement up throughout quite a lot of language, reasoning, coding, and math benchmarks. This launch expands the collection of high-quality fashions for patrons, providing extra sensible selections as they compose and construct generative AI purposes.

Beginning right now, Phi-3-mini, a 3.8B language mannequin is out there on Microsoft Azure AI Studio, Hugging Face, and Ollama

  • Phi-3-mini is out there in two context-length variants—4K and 128K tokens. It’s the first mannequin in its class to assist a context window of as much as 128K tokens, with little impression on high quality.
  • It’s instruction-tuned, that means that it’s skilled to observe several types of directions reflecting how individuals usually talk. This ensures the mannequin is able to use out-of-the-box.
  • It’s accessible on Azure AI to reap the benefits of the deploy-eval-finetune toolchain, and is out there on Ollama for builders to run domestically on their laptops.
  • It has been optimized for ONNX Runtime with assist for Home windows DirectML together with cross-platform assist throughout graphics processing unit (GPU), CPU, and even cellular {hardware}.
  • It’s also accessible as an NVIDIA NIM microservice with a regular API interface that may be deployed anyplace. And has been optimized for NVIDIA GPUs

Within the coming weeks, extra fashions shall be added to Phi-3 household to supply prospects much more flexibility throughout the quality-cost curve. Phi-3-small (7B) and Phi-3-medium (14B) shall be accessible within the Azure AI mannequin catalog and different mannequin gardens shortly.   

Microsoft continues to supply the very best fashions throughout the quality-cost curve and right now’s Phi-3 launch expands the collection of fashions with state-of-the-art small fashions.

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Azure AI Studio

Phi-3-mini is now accessible

Groundbreaking efficiency at a small measurement 

Phi-3 fashions considerably outperform language fashions of the identical and bigger sizes on key benchmarks (see benchmark numbers under, increased is healthier). Phi-3-mini does higher than fashions twice its measurement, and Phi-3-small and Phi-3-medium outperform a lot bigger fashions, together with GPT-3.5T.  

All reported numbers are produced with the identical pipeline to make sure that the numbers are comparable. In consequence, these numbers could differ from different printed numbers because of slight variations within the analysis methodology. Extra particulars on benchmarks are supplied in our technical paper

Be aware: Phi-3 fashions don’t carry out as effectively on factual information benchmarks (comparable to TriviaQA) because the smaller mannequin measurement leads to much less capability to retain information. 

Security-first mannequin design 

Phi-3 fashions have been developed in accordance with the Microsoft Accountable AI Customary, which is a company-wide set of necessities based mostly on the next six rules: accountability, transparency, equity, reliability and security, privateness and safety, and inclusiveness. Phi-3 fashions underwent rigorous security measurement and analysis, red-teaming, delicate use evaluation, and adherence to safety steerage to assist be certain that these fashions are responsibly developed, examined, and deployed in alignment with Microsoft’s requirements and greatest practices.  

Constructing on our prior work with Phi fashions (“Textbooks Are All You Want”), Phi-3 fashions are additionally skilled utilizing high-quality knowledge. They have been additional improved with in depth security post-training, together with reinforcement studying from human suggestions (RLHF), automated testing and evaluations throughout dozens of hurt classes, and guide red-teaming. Our strategy to security coaching and evaluations are detailed in our technical paper, and we define really useful makes use of and limitations within the mannequin playing cards. See the mannequin card assortment. 

Unlocking new capabilities 

Microsoft’s expertise transport copilots and enabling prospects to remodel their companies with generative AI utilizing Azure AI has highlighted the rising want for different-size fashions throughout the quality-cost curve for various duties. Small language fashions, like Phi-3, are particularly nice for: 

  • Useful resource constrained environments together with on-device and offline inference eventualities.
  • Latency sure eventualities the place quick response occasions are crucial.
  • Value constrained use instances, significantly these with easier duties.

For extra on small language fashions, see our Microsoft Supply Weblog.

Because of their smaller measurement, Phi-3 fashions can be utilized in compute-limited inference environments. Phi-3-mini, particularly, can be utilized on-device, particularly when additional optimized with ONNX Runtime for cross-platform availability. The smaller measurement of Phi-3 fashions additionally makes fine-tuning or customization simpler and extra inexpensive. As well as, their decrease computational wants make them a decrease price possibility with significantly better latency. The longer context window permits taking in and reasoning over giant textual content content material—paperwork, net pages, code, and extra. Phi-3-mini demonstrates robust reasoning and logic capabilities, making it a superb candidate for analytical duties. 

Prospects are already constructing options with Phi-3. One instance the place Phi-3 is already demonstrating worth is in agriculture, the place web won’t be readily accessible. Highly effective small fashions like Phi-3 together with Microsoft copilot templates can be found to farmers on the level of want and supply the extra advantage of working at diminished price, making AI applied sciences much more accessible.  

ITC, a number one enterprise conglomerate based mostly in India, is leveraging Phi-3 as a part of their continued collaboration with Microsoft on the copilot for Krishi Mitra, a farmer-facing app that reaches over one million farmers.

Our purpose with the Krishi Mitra copilot is to enhance effectivity whereas sustaining the accuracy of a giant language mannequin. We’re excited to companion with Microsoft on utilizing fine-tuned variations of Phi-3 to satisfy each our objectives—effectivity and accuracy!”   

Saif Naik, Head of Know-how, ITCMAARS

Originating in Microsoft Analysis, Phi fashions have been broadly used, with Phi-2 downloaded over 2 million occasions. The Phi sequence of fashions have achieved exceptional efficiency with strategic knowledge curation and progressive scaling. Beginning with Phi-1, a mannequin used for Python coding, to Phi-1.5, enhancing reasoning and understanding, after which to Phi-2, a 2.7 billion-parameter mannequin outperforming these as much as 25 occasions its measurement in language comprehension.1 Every iteration has leveraged high-quality coaching knowledge and information switch methods to problem typical scaling legal guidelines. 

Get began right now 

To expertise Phi-3 for your self, begin with taking part in with the mannequin on Azure AI Playground. You may also discover the mannequin on the Hugging Chat playground. Begin constructing with and customizing Phi-3 in your eventualities utilizing the Azure AI Studio. Be part of us to be taught extra about Phi-3 throughout a particular dwell stream of the AI Present.  


1 Microsoft Analysis Weblog, Phi-2: The stunning energy of small language fashions, December 12, 2023.



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