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Best LLM Chat Tools

LLM chat tools are the front door to modern AI — from general assistants to specialist chat UIs. Scan ranked options here, then open the compare page for a compact decision table.

Open compare table Related: Best Coding Agent Tools · Best RAG Tools · Best Open Source AI Tools · Best AI Image Generation Tools

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1,960 tools · sorted by quality

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generative-ai

Sample code and notebooks for Generative AI on Google Cloud, with Gemini Enterprise Agent Platform

Score 100 GitHub stars 17,751 Open source
LMCache

LMCache: Supercharge Your LLM with the Fastest KV Cache Layer

Score 100 GitHub stars 11,896 Open source
ms-swift

Use PEFT or Full-parameter to CPT/SFT/DPO/GRPO 600+ LLMs (Qwen3.6, DeepSeek-V4, GLM-5.1, InternLM3, Llama4, ...) and 300+ MLLMs (Qwen3-VL, Q...

Score 100 GitHub stars 15,696 Open source
GenAI_Agents

50+ tutorials and implementations for Generative AI Agent techniques, from basic conversational bots to complex multi-agent systems.

Score 100 GitHub stars 24,367 Open source
awesome-claude-code

A hand-picked collection of the finest of resources for the most awesome of agents, Claude Code, the undisputed champion of coding companion...

Score 100 GitHub stars 54,544 Open source
langextract

A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visua...

Score 100 GitHub stars 38,636 Open source
QwenPaw

Your Personal AI Assistant; easy to install, deploy on your own machine or on the cloud; supports multiple chat apps with easily extensible...

Score 100 GitHub stars 35,215 Open source
llmfit

Hundreds of models & providers. One command to find what runs on your hardware.

Score 100 GitHub stars 37,101 Open source
awesome-agent-skills

A curated collection of 1000+ agent skills from official dev teams and the community, compatible with Claude Code, Codex, Gemini CLI, Cursor...

Score 100 GitHub stars 34,669 Open source
awesome-claude-code-subagents

A collection of 100+ specialized Claude Code subagents covering a wide range of development use cases

Score 100 GitHub stars 25,230 Open source
nanobot

Ultra-lightweight, open-source, self-hosted personal AI agent framework in Python with WebUI, tools, memory, MCP, multi-agent workflows, aut...

Score 100 GitHub stars 48,487 Open source
litellm

The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, l...

Score 100 GitHub stars 59,535 Open source
opik

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, an...

Score 100 GitHub stars 22,207 Open source
FastGPT

FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing...

Score 100 GitHub stars 29,738 Open source
omniget

Udemy & Hotmart course downloader, YouTube downloader (yt-dlp GUI, 1,800+ sites) + desktop app for AI agents: Claude Code, Codex, Gemini CLI...

Score 100 GitHub stars 14,258 Open source
promptfoo

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepS...

Score 100 GitHub stars 25,400 Open source
eino

The ultimate LLM/AI application development framework in Go.

Score 100 GitHub stars 13,145 Open source
VideoCaptioner

🎬 卡卡字幕助手 | VideoCaptioner - 基于 LLM 的智能字幕助手 - 视频字幕生成、断句、校正、字幕翻译全流程处理!- A powered tool for easy and eff...

Score 100 GitHub stars 15,974 Open source
claude-seo

Universal SEO skill for Claude Code. 25 sub-skills + 18 sub-agents covering technical SEO, E-E-A-T, schema, GEO/AEO, backlinks, local SEO, m...

Score 100 GitHub stars 16,757 Open source
litgpt

20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.

Score 100 GitHub stars 13,679 Open source
quivr

Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with...

Score 100 GitHub stars 39,534 Open source
ai-guide

程序员鱼皮的 AI 资源大全 + Vibe Coding 零基础教程,分享 OpenClaw 保姆级教程、大模型玩法(DeepSeek / GPT / Gemini / Claude / GLM)、最新 AI...

Score 100 GitHub stars 20,452 Open source
unity-mcp

Unity MCP acts as a bridge between AI assistants and your Unity Editor. Give your LLM tools to manage assets, control scenes, edit scripts,...

Score 100 GitHub stars 14,426 Open source
claude-mem

Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and inject...

Score 100 GitHub stars 94,599 Open source
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