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LangSmith
Debug & evaluate LLM apps.FreemiumDeveloper ToolsLiteLLM
Call 100+ LLMs with one SDK.Open sourceDeveloper ToolsHumanloop
LLM evaluation & prompt management.FreemiumVerified FreeDeveloper ToolsPortkey
AI gateway & observability.FreemiumDeveloper ToolsJan
Offline ChatGPT alternative.Open sourceDeveloper ToolsOpenRouter
One API for every model.Usage-basedVerified FreeDeveloper ToolsDeepSeek
Open, low-cost frontier models.FreemiumChatbotsLe Chat
Mistral's chat assistant.FreemiumVerified FreeChatbotsHelicone
Open-source LLM observability.FreemiumVerified FreeDeveloper ToolsVenice AI
Private, uncensored AI.FreemiumChatbotsOllama
Run LLMs locally.Open sourceVerified FreeDeveloper ToolsCohere
Enterprise LLM and RAG platform.Usage-basedDeveloper ToolsPredibase
40
Fine-tune & serve open LLMs.Usage-basedVerified FreeDeveloper ToolsGPT4All
Run private LLMs locally.Open sourceVerified FreeChatbotsLM Studio
Run LLMs locally with a GUI.FreeDeveloper ToolsTogether AI
Run & fine-tune open models.Usage-basedVerified FreeDeveloper ToolsPromptLayer
Prompt engineering & observability.FreemiumDeveloper ToolsHuggingChat
Open-source chat with open models.FreeChatbotsQwen Chat
Alibaba's open Qwen models.FreemiumVerified FreeChatbotsKimi
Long-context assistant by Moonshot.FreemiumChatbotsGroq
Ultra-fast LLM inference.Usage-basedVerified FreeDeveloper ToolsGrok
xAI's witty, real-time assistant.FreemiumVerified FreeChatbotsFireworks AI
Fast inference for open models.Usage-basedVerified FreeDeveloper ToolsCerebras
Fastest LLM inference.Usage-basedVerified FreeDeveloper Tools
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