July 12, 2024

How to Architect Your LLM Stack

How to Architect Your LLM Stack

With Artificial Intelligence (AI) going from a plot point in sci-fi media to the newest, shiniest plaything for techies everywhere, Large Language Models (LLMs) have become a cornerstone for developing new-age apps. From chatbots to advanced content generation, LLMs have become the driving force behind every innovation popping up across most industries. However, if you want to extract maximum utility out of LLMs, it's essential to be meticulous when architecting your LLM stack. This post covers all the crucial considerations for companies deploying LLM applications, ensuring optimal performance, scalability, and business value.

Custom LLM Evaluation Dashboard

When deploying Large Language Model applications, a one-size-fits-all approach will rarely do the job. Different use cases may benefit from different LLMs, including specific versions of popular models like GPT-3 or GPT-4. Developing a custom LLM evaluation dashboard tailored to your specific needs is imperative. This dashboard should:

  • Evaluate model performance against your unique use cases.
  • Compare various LLMs and their versions.
  • Provide insights into metrics like response time, accuracy, and relevance of generated content.

By doing so, companies can make informed decisions about which LLM best serves their needs, ensuring maximum efficiency and effectiveness.

Mitigating 429 Errors with Fail-Over Backups

Reliability is critical in deploying LLM applications, especially when leveraging third-party APIs. One common issue is the occurrence of 429 errors, indicating too many requests. To mitigate potential disruptions:

  • Implement a fail-over backup with a locally hosted LLM.
  • Ensure the backup LLM can seamlessly take over in case of API rate limits or outages.
  • Regularly update and test the fail-over system to ensure readiness.

This approach guarantees continuous service availability and minimizes downtime, thereby enhancing user experience.

Establishing an AI Gateway

Decoupling your application’s dependency on a specific LLM is crucial for both scalability and flexibility. An AI gateway serves this purpose by:

  • Acting as an intermediary between your application and various LLMs.
  • Allowing easy integration of new LLMs without significant changes to the application.
  • Facilitating load balancing and managing requests efficiently.

By setting up an AI gateway, you can seamlessly transition to new LLMs as they become available, ensuring your application remains at the cutting edge of AI technology.

Enhanced Observability Stack

Observability is vital for monitoring and maintaining the health of LLM-based applications. Enhancing your observability stack should include:

  • Tracking perplexity scores to gauge model confidence.
  • Monitoring data source updates to ensure data freshness.
  • Implementing comprehensive logging to capture user interactions and model responses.

These metrics provide deeper insights into model performance, enabling proactive issue resolution and continuous improvement.

Tracking User Behavior and Prompts

Understanding user behavior is key to optimizing LLM performance. By tracking user prompts and interactions, companies can:

  • Identify the most common use cases and user needs.
  • Fine-tune the LLM to better serve these requirements.
  • Collect valuable feedback to guide future development and improvements.

This user-centric approach ensures that the LLM application remains relevant and valuable to its users, driving engagement and satisfaction.

Business Value of LLM Applications

When building an LLM application, it’s essential to focus on the business value it brings. This value can manifest in various forms, including:

  • Increasing user engagement through personalized interactions.
  • Providing quick and accurate customer service.
  • Enhancing productivity by automating repetitive tasks.

Quantifying these metrics helps demonstrate the ROI of Large Language Model applications, making it easier to justify investment in AI technologies.

Conclusion

Developing effective LLM-based applications requires a blend of software development, machine learning, and data science skills. Companies can ensure that their LLM applications are robust, scalable, and aligned with business objectives by focusing on key considerations such as custom evaluation dashboards, fail-over backups, AI gateways, enhanced observability, and user behavior tracking.

Want to see how these considerations are applied in a real-world SaaS? Sign up for HTCD’s AI-powered cloud security solution or schedule a demo today.

Subham Kundu

LinkedIn logo
Principal AI Engineer

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