{"slug": "temperature-and-sampling-the-llm-creativity-dial", "title": "Temperature and Sampling: the LLM Creativity Dial", "summary": "A developer created an interactive tool demonstrating how temperature and sampling parameters control the creativity and reproducibility of large language model outputs. The tool shows that low temperature (near 0) produces deterministic, repetitive results, while higher values (0.7–1.0) enable more varied and creative text generation. Techniques like top-k and top-p sampling are also explained as ways to manage the trade-off between diversity and coherence.", "body_md": "Why does the same prompt give different answers? Temperature. One number turns an LLM from \"safe and repetitive\" to \"creative and risky\" by reshaping the next-word odds before it picks. Drag the dial and watch.\n\n🌡️ **Reshape + sample:** [https://dev48v.infy.uk/ai/days/day9-temperature.html](https://dev48v.infy.uk/ai/days/day9-temperature.html)\n\nAt each step it produces a probability for every possible next word — \"weather is ___\" → 46% sunny, 22% cloudy, 14% rainy, plus a long tail. Choosing one is a separate step called sampling.\n\n```\np = Math.pow(p, 1 / temperature);  // then renormalise\n```\n\nThen it samples weighted by the reshaped probabilities, so two runs differ at higher T.\n\nPure temperature can still pick something absurd from the tail. **top-k** keeps only the k likeliest words; **top-p (nucleus)** keeps the smallest set summing to p (e.g. 0.9). Both cut the weird tail while keeping variety.\n\nFacts, code, extraction → temperature ≈ 0 (reproducible). Brainstorming, copy, fiction → 0.7–1.0. Set temperature OR top-p, not both hard.\n\n[Drag the dial](https://dev48v.infy.uk/ai/days/day9-temperature.html) — low = same word every time, high = scattered.", "url": "https://wpnews.pro/news/temperature-and-sampling-the-llm-creativity-dial", "canonical_source": "https://dev.to/dev48v/temperature-and-sampling-the-llm-creativity-dial-975", "published_at": "2026-06-20 07:06:26+00:00", "updated_at": "2026-06-20 07:37:03.506147+00:00", "lang": "en", "topics": ["large-language-models", "generative-ai", "ai-tools", "natural-language-processing"], "entities": [], "alternates": {"html": "https://wpnews.pro/news/temperature-and-sampling-the-llm-creativity-dial", "markdown": "https://wpnews.pro/news/temperature-and-sampling-the-llm-creativity-dial.md", "text": "https://wpnews.pro/news/temperature-and-sampling-the-llm-creativity-dial.txt", "jsonld": "https://wpnews.pro/news/temperature-and-sampling-the-llm-creativity-dial.jsonld"}}