Langfuse
Helicone AI
LangSmith
LangChain
PromptLayer
Humanloop
Braintrust.dev
Openlayer
Pi Coding Agent
warp by spolu
opencode
OpenAI Codex CLI
Claude Code
DeepSeek Platform
Hacker News Search
Zed
Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data. By integrating seamlessly into existing workflows, Langfuse streamlines the process of monitoring, debugging, and optimizing LLM applications. Our platform's robust documentation and active community support make it easy for developers to leverage Langfuse for enhancing their LLM projects efficiently. Whether you're troubleshooting interactions or iterating on new features, Langfuse is committed to simplifying your LLM development journey.
Langfuse Pi Coding AgentLangfuse might be a bit more popular than Pi Coding Agent. We know about 29 links to it since March 2021 and only 23 links to Pi Coding Agent. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Langfuse and LangSmith exist for this. Use them. The 30 minutes you spend setting up observability saves you the 87 hours you'd spend debugging blind. - Source: dev.to / 1 day ago
In this project we will build a Python banking assistant agent using Strands Agents and make it observable and continuously evaluated using Langfuse โ step by step. - Source: dev.to / about 1 month ago
Langfuse is the open-source standard for LLM observability. It traces every LLM interaction โ prompts, completions, latency, token usage, cost โ and provides the tooling to debug, evaluate, and optimize LLM applications in production. Think of it as "Datadog for LLM calls" with a focus on prompt engineering workflows. - Source: dev.to / about 2 months ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / 2 months ago
Gateway or proxy attribution. A reverse proxy in front of the model-provider API records the request, computes the cost, and exposes per-customer breakdowns. Open-source options include Helicone, LiteLLM, Langfuse, and OpenLLMetry. Hosted equivalents serve as the AI cost observability layer for teams that want centralized visibility: LangSmith, Datadog LLM Observability, Arize Phoenix. Adds a network hop.... - Source: dev.to / 2 months ago
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 / 4 days ago
I divided the project into three parts, inspired by Tau's "brain, environment, face" split, and by Mario Zechner's pi:. - Source: dev.to / 6 days ago
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 / 13 days ago
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 / 14 days ago
Over one night I rebuilt both halves of that sentence on pi โ an open, npm-distributed, forkable agent runtime โ 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 / 15 days ago
Helicone AI - Open-source LLM Observability for Developers
warp by spolu - Secure and simple terminal sharing
LangSmith - Build and deploy LLM applications with confidence
opencode - The AI coding agent, built for the terminal.
LangChain - Framework for building applications with LLMs through composability
OpenAI Codex CLI - Frontier reasoning in the terminal