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llm 0.34

Sep 7, 2026via Simon Willison

Why it matters

When optimizing AI/ML systems, understanding response latency is critical for diagnosing performance issues. This new feature allows for better insight into response times, which can improve overall system performance.

Summary

llm 0.34 introduces a logging feature that records response durations in both milliseconds and human-readable formats. It includes several bug fixes and performance improvements. However, specific metrics comparing this version's performance to previous iterations are not provided.

Editor's Take

Here's the thing: response logging in milliseconds is a welcome addition for anyone using llm 0.34. It provides clarity on latency and performance, which is crucial for debugging and optimizing your AI/ML applications. However, without detailed metrics on how this performance improvement stacks up against previous versions, it feels like a step forward without a clear view of how far we've actually come. The catch is that while this feature is helpful, logging alone won't solve deeper issues with model responsiveness or data quality.

When you’re knee-deep in production, every millisecond counts. This new logging feature could help you identify bottlenecks faster, particularly if you're already using llm in a pipeline where understanding response times is critical. However, if you’re still ironing out data inconsistencies or pipeline reliability, focusing on this logging enhancement might not yield immediate returns.

Compared to competitors like OpenAI's GPT-3 or Hugging Face Transformers, this improvement might seem modest. They have robust ecosystems and extensive libraries that may offer more comprehensive performance insights or optimizations out of the box. If you’re committed to using llm, the logging feature is a beneficial addition but shouldn’t be your sole focus.

If you’re already invested in llm, consider trying out this version to take advantage of the new logging capabilities. But if you're not, or if you're looking for more substantial performance improvements, it might be worth waiting for further updates or enhancements before making the switch.

Reactions & Discussion

Original Source

https://simonwillison.net/2026/Sep/2/llm/

via Simon Willison

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