Pi Coding Agent Reviews and Details

Social recommendations and mentions

• Forget Claude Code. All you need is Qwen3.8-Flash-Next running locally for agentic coding

  3 runs each. Capped at 70 W. Each value is one cold 32k-token prompt (a Pi coding task), sampled at temperature 1.0 / top_p 0.95 / top_k 20 with MTP on. Halogen uses its v2 checkpoint, Gufo uses Unsloth UD-Q4_K_XL with the shared Q8_0 MTP head. All three Halogen runs are fully cold. Gufo reused 6k and 12.6k cached prompt tokens on its second and third runs, so only its first run is fully cold. - Source: dev.to / 1 day ago

• Pi 1.0

  This is the understanding I have from working with PI for more than a year. They also say so on their website ( https://pi.dev/ ):. - Source: Hacker News / 6 days ago

• We Must Pace the Frontier

  I'm curious, what are the reasons to use Claude Code anymore when there are so many other (allegedly better) OpenSource harnesses out there? Personally I've been using https://pi.dev for long and never looked back. - Source: Hacker News / 25 days ago

• Can Qwen 3.8 running on your laptop really replace Claude Opus for Agentic coding?

  For coding I mostly use Pi as harness these days. It pairs well with Qwen models and I have it setup to follow the same rules and memories as my, hopefully getting closer to retire, Claude Code setup. Below is the LlamaStash provider block in ~/.pi/agent/models.json, which llamastash integrations writes for you. - Source: dev.to / 27 days ago

• Unsloth Desktop brings Local AI to the masses

  Models are only part of the equation. Having a good harness is the other half of the puzzle. I have tried a few and I currently recommend Pi. Look for a future post about how important choosing the right harness is. - Source: dev.to / about 1 month ago

• Brain – A minimal, fast, extensible agent runtime

  Hello Hackers! I’m Weilue Luo, the creator of Brain. Brain is an agent runtime that allows you to build AI native system that runs tools on anywhere from browser to sandbox; fully customizable so you can choose to run on pi/codex backed agent-loop (securely in wasm-based isolation). Its intentionally minimal and allow you to build agent beyond coding, it comes with real-time events so you could tell instantly... - Source: Hacker News / about 1 month ago

• Using Your Claude Subscription in Pi Agent — At Your Own Risk

  If you use Pi and you're willing to gamble your Anthropic account on it, here you go:. - Source: dev.to / about 1 month ago

• GLM-5.3: Frontier Coding with Emergent Cyber Capabilities

  What the person above is suggesting: * https://pi.dev/ * https://omp.sh/ Personally I also think that OpenCode is nice, their CLI version is enjoyable and their desktop/web version is mostly okay: * https://opencode.ai/. - Source: Hacker News / about 2 months ago

• Hax – a minimalist, terminal-native coding agent written in C

  I know the Pi [0] folks had some trouble with newer models [1]. [0]: https://pi.dev/ [1]: https://lucumr.pocoo.org/2026/7/4/better-models-worse-tools/. - Source: Hacker News / about 2 months ago

• Pi Agent vs Claude Code After 100 Hours of Real Use 🔥

  Pi is the coding agent Mario Zechner released in late 2025, now maintained under Earendil. Zechner joined Earendil in April 2026 in a blog post he titled "I've sold out," and the core stayed MIT licensed. - Source: dev.to / about 2 months ago

• Qwen3.8 Max now ranked as the best overall model by agentic index

  I use https://pi.dev/ which works fine out of the box but is fairly minimal and intended to be customized. There are many extensions. OpenCode or oh-my-pi might make more sense if you just want a batteries-included agent. You can also make Claude Code work with other models without too much work, but I think that's asking for headaches. - Source: Hacker News / 2 months ago

• Litos: Building a Minimal AI Coding Agent, from Scratch in pure C#/.NET

  I divided the project into three parts, inspired by Tau's "brain, environment, face" split, and by Mario Zechner's pi:. - Source: dev.to / 2 months ago

• Developers are attached to tools because tools encode trust

  Maybe you should try using Pi [0] if you care a lot about owning your harness and making sure you're in control of what goes into your system prompt and context? [0]: https://pi.dev. - Source: Hacker News / 2 months ago

• Steel Bank Common Lisp version 2.6.7

  An extensible LLM agent (such as https://pi.dev/ or maybe hermes) written in common lisp could be interesting. Conditions and restarts and general debugging and repair of the live system, fast startup, native execution speeds, ability to add or replace or modify core functionality on the fly, solid multi-threading support, dynamic introspection including documentation, CLOS and multiple dispatch, saved images. - Source: Hacker News / 2 months ago

• I built an AI dev harness that isn't allowed to trust itself. Then I checked the part doing the not-trusting.

  Over one night I rebuilt both halves of that sentence on pi — an open, npm-distributed, forkable agent runtime — mostly to find out how much of my harness was discipline and how much was one host's shape. Two public repos came out of it: pi-eval for the proof half, and pi-gates for the irreversibility half. - Source: dev.to / 2 months ago

• Stripe in talks to buy OpenRouter for ~10B

  I've briefly played around with https://pi.dev, appeared to work quite well. - Source: Hacker News / 3 months ago

• Stop Using OpenCode

  I see some folk recommending https://pi.dev/. - Source: Hacker News / 3 months ago

• Qwen3.8 is launching and going open-weight soon

  > Gemma isn’t very good at agentic execution I had no issues with it for C++ development with https://pi.dev. I'm yet to try it with Zed Editor. I don't rely on agents too much. However, I used it on Chromium's codebase to research some functionalities, let's say for searching. Requests like: check my last commit and do the same for SetterA and SetterB; it also ran without any errors. - Source: Hacker News / 3 months ago

• Grok Build Is OSS

  I would recommend using https://pi.dev/ over Grok Build with your xAI subscription at this point. - Source: Hacker News / 3 months ago

• Why I route each phase of my coding agent to a different model

  My method is simple to state: treat a coding turn as a sequence of phases, and give each phase the model best suited to it. I've packaged it as pi-tiered-router, an extension for the pi coding agent — but the method matters more than the package, so that's what this post is really about. - Source: dev.to / 3 months ago

• I Built a Telegram Client for Pi

  To all the haters to not knowing what "pi" means in this context. Is mario zechner's ai agent / coding harness [1][2], similar in spirit albeit much less complex to claude code or openai's codex and others. I wouldn't call it third tier. If anything alongside opencode, and codex, its one of the "first tier" and the only non-VC-backed (at least before mario joined earendil (idk about earendil rising or not)... - Source: Hacker News / 3 months ago