Popular GitHub Repositories for Ycombinator

? Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. ?YC W23

? Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 ?

? Enterprise-grade API gateway that helps you monitor and impose cost or rate limits per API key. Get fine-grained access control and monitoring per user, application, or environment. Supports OpenAI, Azure OpenAI, Anthropic, vLLM, and open-source LLMs.

PostgreSQL vector database extension for building AI applications

EdgeChains.js is Full-Stack GenAI library. Front-end, backend, apis, prompt management, distributed computing. All core prompts & chains are managed declaratively in jsonnet (and not hidden in classes)

Curated collection of AI dev tools from YC companies, aiming to serve as a reliable starting point for LLM/ML developers

Command Jobs uses AI to help software engineers find the best jobs

Modular, open source LLMOps stack that separates concerns: LiteLLM unifies LLM APIs, manages routing and cost controls, and ensures high-availability, while Langfuse focuses on detailed observability, prompt versioning, and performance evaluations.

YC Hackathon 2018 Winner Project. BEN: A decentralized chatbot that uses federated learning.

Cultivating linguistic forests from YC startup pitches using bio-inspired grammar trees to map pitch patterns.

Evaluate and compare AI language models on coding tasks with Evals. Run structured tests, integrate usage rules, and generate detailed reports. ??