PublishersSimon Willison

Simon Willison

4 documents read from this publisher.

Introducing Hy4 Preview

news analysis · third party analysis · 2026-08-29 · 2 techniques

Configurable reasoning effort chat templates for model prompting

Inkling: Our open-weights model

news analysis · third party analysis · 2026-07-16 · 3 techniques

Mixture of Experts Fine-tuning on Tinker platform Open-weights release under Apache-2.0 license

Kimi K3, and what we can still learn from the pelican benchmark

news analysis · third party analysis · 2026-07-16 · 3 techniques

Chain-of-thought reasoning Agentic tool calling Multimodal input

OpenAI’s new open weight (Apache 2) models are really good

news analysis · third party analysis · 2025-08-05 · 13 techniques

Mixture of Experts Configurable reasoning effort Agentic tool-use training Browser tool CBRN pre-training data filtering Chain-of-Thought Reinforcement Learning o200k_harmony tokenizer Developer-defined function schemas Expert-optimized Triton kernels Harmony output channels (final/analysis/commentary)OpenAI Harmony response format Python (stateful Jupyter) tool training Text-only pre-training corpus