All Posts

• Codex, File My Taxes. Make No Mistakes. Mar 07, 2026
• A Pocket Guide to Surviving the Robot Apocalypse Feb 16, 2026
• OpenPipe is Joining CoreWeave Sep 03, 2025
• RULER: Easy Mode for RL Rewards Jul 11, 2025
• Reward Hacking 101 Jun 06, 2025
• ART·E: How We Built an Email Research Agent That Beats o3 Apr 29, 2025
• ART Trainer: A New RL Trainer for Agents Apr 14, 2025
• One Right Answer or Many? A Useful Distinction for Evaluating and Fine-Tuning LLMs Jan 14, 2025
• Analyzing OpenAI's Reinforcement Fine-Tuning: Less Data, Better Results Dec 30, 2024
• Using Reinforcement Learning and $4.80 of GPU Time to Find the Best HN Post Ever (RLHF Part 1) Oct 28, 2024
• A Founder's Guide to AI Fine-Tuning Oct 11, 2024
• Introducing Direct Preference Optimization (DPO) Support on OpenPipe Oct 01, 2024
• Fine-tuning Best Practices Chapter 2: Models Aug 28, 2024
• Fine-tuning Best Practices Series Introduction and Chapter 1: Training Data Aug 01, 2024
• Announcing Llama 3.1 and GPT-4o Mini fine-tuning through OpenPipe! Jul 24, 2024
• OpenPipe Mixture of Agents: Outperform GPT-4 at 1/25th the Cost Jun 20, 2024
• The Ten Commandments of Fine-Tuning in Prod (a Mastering LLMs Conference Talk) May 23, 2024
• What we've learned in 3 days of Llama 3 Apr 21, 2024
• We Raised $6.7M to Replace GPT-4 with Your Own Fine-Tuned Models Mar 25, 2024
• Mixtral Curious? Comparing Mistral 7B and Mixtral for fine-tuning Feb 29, 2024
• S-LoRA: Serving Thousands of Models From One GPU for Fun and Profit Jan 17, 2024
• Axis Improves Generation Quality and Lowers Costs With Fine Tuning Jan 04, 2024
• Product Updates December 2023 Jan 03, 2024
• How we built "Mistral 7B Fine-Tune Optimized," the best 7B model for fine-tuning Dec 18, 2023
• Announcing Automatic Evals for Fine-tuned Models Dec 01, 2023
• Is AI the Next Crypto? Insights from 2M HN comments Nov 08, 2023
• Llama 2 vs Mistral: Believe the Hype Nov 05, 2023
• Fine-tune your own Llama 2 to replace GPT-3.5/4 Sep 12, 2023
• From Prompts to Models Aug 28, 2023
• Private, Recoverable SSO with FixedID Sep 14, 2021

  In FixedID: Building a Better SSO I described a system for building a proof-of-personhood protocol with built-in account recovery. In that post, I mentioned the possibility of using the system for SSO while maintaining user privacy. This post will elaborate a specific system for achieving that.

• Crypto Basic Income Sep 02, 2021

  We’re at a unique moment in history for universal basic income. Over just the last few years, the technical problem of implementing universal basic income has gone from completely impractical to almost trivially easy.

• FixedID: Building a Better SSO Aug 25, 2021
• A 100% Estate Tax? Apr 25, 2018
• I Accidentally Went a Week Without Mobile Internet Apr 23, 2018
• A Faster Cycle Helps Startups Dec 01, 2017
• Small Companies and the Presumption of Competence Oct 28, 2017
• Keep Your Burn Rate Low Oct 17, 2017
• Being in the Right Place Oct 03, 2017
• An Actually Good Solution to On-Device Development in React Native Jun 25, 2016
• Keeping the Screen on in React Native Jun 24, 2016
• Six Months with React Native Jun 03, 2016
• Detecting Device Orientation in React Native Mar 16, 2016
• Libraries I Use in a Production React Native App Mar 16, 2016
• More Debugging with React Native Jan 29, 2016
• Early-Career Resume Advice (for software developers) Jan 09, 2016
• Breaking up Heavy Processing in React Native Dec 22, 2015
• Debugging with Global Variables and the Chrome Console in React Native Dec 19, 2015
• Redux Persist and ImmutableJS Records Dec 17, 2015
• Integrating React Native with an Existing App Sep 18, 2015
• Mixing 32- and 64-bit Dependencies in Android Sep 18, 2015
• One Day with React Native for Android Sep 16, 2015
• Showing the current time in rails_admin Aug 13, 2015
• Signing Android Builds with Gradle Aug 11, 2015
• Plan to Throw One Away Jul 23, 2015
• ClojureScript in Rails Mar 16, 2015
• Puma vs. Unicorn — Performance Feb 05, 2015
• Redis Reconnection Overhead Feb 04, 2015
• Rails VM Performance Tips Jan 28, 2015
• Rails Auto-Refresh Dec 19, 2014
• Clojure for Rails Programmers Dec 18, 2014
• Responding to Issues Nov 25, 2014
• Git Branching with Rails Nov 11, 2014
• Climate Change Since 1950 May 10, 2014
• World Temperatures May 01, 2014

  Although there are many aspects of culture and lifestyle in those areas that are hard to compare directly, climate is an easy one. This interactive map contains data points from over 2700 meteorological stations worldwide.

• Introducing Pypeline DB Dec 17, 2013

  Pypeline DB is a new Python package that makes it easy to import, explore, transform and export data sets.

• Visualizing Traffic in San Francisco Dec 12, 2013
• Mapping Countries in the Twitterverse Dec 11, 2013
• The Joys of Programatic Provisioning (with Sprinkle) Dec 10, 2013