We Got Claude to Fine-Tune an Open Source LLM
…Many thanks. "Really fascinating read! I found the explanation of Hugging Face’s “Skills Training” initiative — how it lets you use a coding‑agent (like Claude Code or other supported agents) to…
Before we started this research, it was not clear where the misaligned behavior was coming from. Our main two hypotheses were: Our post-training process was accidentally encouraging this behavior with misaligned rewards.This behavior was coming from the pre-trained model and our post-training was failing to sufficiently discourage it. We now believe that (2) is largely responsible. Specifically, at the time of Claude 4’s training, the vast majority of our alignment training was standard chat-based Reinforcement Learning from Human Feedback RLHF data that did not include any agentic tool use. T
Teaching Claude why…Many thanks. "Really fascinating read! I found the explanation of Hugging Face’s “Skills Training” initiative — how it lets you use a coding‑agent (like Claude Code or other supported agents) to…
…When using AI coding assistants or agents, the context is additional data sent along with the user's prompts, such as existing code or background instructions. Context improves the accuracy of the…
…Anthropic was founded in 2021 with a strong focus on AI safety research. 02 / 8 Safety What is the name of the safety and values framework Anthropic developed to guide Claude's…
…Step 3: The agent generates a complete application with multiple files — model download scripts, the pipeline app, inference config file, and more. Let’s focus on the files that matter for model…
…Anthropic was founded in 2021 with a strong focus on AI safety research. 02 / 8 Safety What is the name of the safety and values framework Anthropic developed to guide Claude's…
…We focus on product safety. Functional safety of products would be when you embed software, let’s say, in an electric vehicle, you don’t want to turn the radio on and…
…Anthropic was founded in 2021 with a strong focus on AI safety research. 02 / 8 Safety What is the name of the safety and values framework Anthropic developed to guide Claude's…
…It cuts the friction from those multi-step tasks so developers can stay in the flow and focus on building. Based on our internal research-agent benchmark, Claude Opus 4.7 has…
…is Anthropic's agentic coding tool, built on top of their Claude AI models. Anthropic was founded by former OpenAI researchers and has positioned Claude as a safety-focused AI assistant. Not…
…based parallel agent execution model. Unlike tools that work inline in your editor one task at a time, Codex can handle multiple sandboxed workstreams simultaneously, freeing developers to stay focused on their…