Uploaded November 2025 | Updated September 2026, 1 week ago

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Why do LLMs sometimes give different answers even with the same prompt, temperature 0, and seed? In this video, we break down one of the most confusing “mysteries” of modern LLMs and walk through Thinking Machines's first ever blog: Defeating Nondeterminism in LLM Inference, the coolest (imo) LLM "debugging" ever.


Blog of this video
[Paper] thinkingmachines.ai/blog/defeating-nondeterminism-in-llm-inference

Special thanks to @CalebWritesCode for helping out with this video!

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