LLM development tool - AI tools

  • BenchLLM
    BenchLLM The best way to evaluate LLM-powered apps

    BenchLLM is a tool for evaluating LLM-powered applications. It allows users to build test suites, generate quality reports, and choose between automated, interactive, or custom evaluation strategies.

    • Other
  • PromptsLabs
    PromptsLabs A Library of Prompts for Testing LLMs

    PromptsLabs is a community-driven platform providing copy-paste prompts to test the performance of new LLMs. Explore and contribute to a growing collection of prompts.

    • Free
  • Laminar
    Laminar The AI engineering platform for LLM products

    Laminar is an open-source platform that enables developers to trace, evaluate, label, and analyze Large Language Model (LLM) applications with minimal code integration.

    • Freemium
    • From 25$
  • LM Studio
    LM Studio Discover, download, and run local LLMs on your computer

    LM Studio is a desktop application that allows users to run Large Language Models (LLMs) locally and offline, supporting various architectures including Llama, Mistral, Phi, Gemma, DeepSeek, and Qwen 2.5.

    • Free
  • LMQL
    LMQL A programming language for LLMs.

    LMQL is a programming language designed for large language models, offering robust and modular prompting with types, templates, and constraints.

    • Free
  • Flowise
    Flowise Build LLM Apps Easily - Open Source Low-Code Tool for LLM Orchestration

    Flowise is an open-source low-code platform that enables developers to build customized LLM orchestration flows and AI agents through a drag-and-drop interface.

    • Freemium
    • From 35$
  • GPT–LLM Playground
    GPT–LLM Playground Your Comprehensive Testing Environment for Language Learning Models

    GPT-LLM Playground is a macOS application designed for advanced experimentation and testing with Language Learning Models (LLMs). It offers features like multi-model support, versioning, and custom endpoints.

    • Free
  • Inductor
    Inductor Streamline Production-Ready LLM Applications

    Inductor enables developers to rapidly prototype, evaluate, and improve LLM applications, ensuring high-quality app delivery.

    • Freemium
  • lm-studio.me
    lm-studio.me Local LLM Running & Download Platform

    LM Studio is a user-friendly desktop application that allows users to run various large language models (LLMs) locally and offline, including Llama 2, PN3, Falcon, Mistral, StarCoder, and GEMMA models from Hugging Face.

    • Free
  • PromptMage
    PromptMage A Python framework for simplified LLM-based application development

    PromptMage is a Python framework that streamlines the development of complex, multi-step applications powered by Large Language Models (LLMs), offering version control, testing capabilities, and automated API generation.

    • Other
  • ModelBench
    ModelBench No-Code LLM Evaluations

    ModelBench enables teams to rapidly deploy AI solutions with no-code LLM evaluations. It allows users to compare over 180 models, design and benchmark prompts, and trace LLM runs, accelerating AI development.

    • Free Trial
    • From 49$
  • Gentrace
    Gentrace Intuitive evals for intelligent applications

    Gentrace is an LLM evaluation platform designed for AI teams to test and automate evaluations of generative AI products and agents. It facilitates collaborative development and ensures high-quality LLM applications.

    • Usage Based
  • Libretto
    Libretto LLM Monitoring, Testing, and Optimization

    Libretto offers comprehensive LLM monitoring, automated prompt testing, and optimization tools to ensure the reliability and performance of your AI applications.

    • Freemium
    • From 180$
  • Rig
    Rig Build Modular and Scalable LLM Applications in Rust

    Rig is a Rust-based framework for building modular and scalable LLM applications. It offers a unified LLM interface, Rust-powered performance, and advanced AI workflow abstractions.

    • Free
  • W&B Weave
    W&B Weave A Framework for Developing and Deploying LLM-Based Applications

    Weights & Biases (W&B) Weave is a comprehensive framework designed for tracking, experimenting with, evaluating, deploying, and enhancing LLM-based applications.

    • Other
  • Langfuse
    Langfuse Open Source LLM Engineering Platform

    Langfuse provides an open-source platform for tracing, evaluating, and managing prompts to debug and improve LLM applications.

    • Freemium
    • From 59$
  • aider
    aider AI Pair Programming in Your Terminal

    Aider is a command-line tool that enables pair programming with LLMs to edit code in your local git repository. It supports various LLMs and offers top-tier performance on software engineering benchmarks.

    • Free
  • GeneratorLLMs
    GeneratorLLMs Extracts core website content, creates structured text files, improves LLM comprehension, boosts search engine visibility, and delivers quality data for AI training and inference.

    GeneratorLLMs is a tool that creates standardized `llms.txt` files by extracting core website content. This improves how Large Language Models (LLMs) understand websites and enhances AI visibility.

    • Free
  • LM-Kit
    LM-Kit Enterprise-Grade C# Toolkits for AI Agent Integration

    LM-Kit provides .NET developers with tools for AI agent customization, creation, and orchestration. It enables multimodal generative AI systems integration in C# and VB.NET applications.

    • Paid
    • From 1000$
  • Langtail
    Langtail The low-code platform for testing AI apps

    Langtail is a comprehensive testing platform that enables teams to test and debug LLM-powered applications with a spreadsheet-like interface, offering security features and integration with major LLM providers.

    • Freemium
    • From 99$
  • Agenta
    Agenta End-to-End LLM Engineering Platform

    Agenta is an LLM engineering platform offering tools for prompt engineering, versioning, evaluation, and observability in a single, collaborative environment.

    • Freemium
    • From 49$
  • promptfoo
    promptfoo Test & secure your LLM apps with open-source LLM testing

    promptfoo is an open-source LLM testing tool designed to help developers secure and evaluate their language model applications, offering features like vulnerability scanning and continuous monitoring.

    • Freemium
  • LLM Token Counter
    LLM Token Counter Secure client-side token counting for popular language models

    A sophisticated token counting tool that helps users manage token limits across multiple language models including GPT-4, Claude-3, and Llama-3, with client-side processing for maximum security.

    • Free
  • Keywords AI
    Keywords AI LLM monitoring for AI startups

    Keywords AI is a comprehensive developer platform for LLM applications, offering monitoring, debugging, and deployment tools. It serves as a Datadog-like solution specifically designed for LLM applications.

    • Freemium
    • From 7$
  • docs.litellm.ai
    docs.litellm.ai Unified Interface for Accessing 100+ LLMs

    LiteLLM provides a simplified and standardized way to interact with over 100 large language models (LLMs) using a consistent OpenAI-compatible input/output format.

    • Free
  • Missing Studio
    Missing Studio An open-source AI studio for rapid development and robust deployment of production-ready generative AI.

    Missing Studio is an open-source AI platform designed for developers to build and deploy generative AI applications. It offers tools for managing LLMs, optimizing performance, and ensuring reliability.

    • Free
  • phoenix.arize.com
    phoenix.arize.com Open-source LLM tracing and evaluation

    Phoenix accelerates AI development with powerful insights, allowing seamless evaluation, experimentation, and optimization of AI applications in real time.

    • Freemium
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