Open Source Alternatives to Character.AI

A platform for creating, discovering, and interacting with custom AI chatbots.

Open source

AI character and companion platform with 2M daily active users and $40M ARR.

Open source

Generative AI platform for submitting and combining LLMs using human feedback into a meta-model.

Open source

AI companion chatroom for SFW and NSFW conversations with customizable characters.

Open source

Open-source AI agent framework for automating tasks across messaging platforms and software systems.

Open source · Self-hostable

OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity.

Open source

SpaceXAI is an artificial intelligence and social media company, a subsidiary of SpaceX, developing the generative AI chatbot Grok and the social network X.

Open source

Build context-aware AI assistants using RAG knowledge bases with real-time voice and vision capabilities.

Open source

Hands-free cooking app guided by voice commands with AI-generated recipes.

Open source

A privacy-preserving AI platform that redacts sensitive data from text and audio, enabling safe use of large language models.

Open source · Self-hostable

AI-powered search engine that delivers real-time, cited answers to complex questions.

Open source

AI research and deployment company building safe and beneficial AGI.

Open source

Chinese AI startup developing advanced large language models and AI agents, including the Kimi chatbot, with a focus on AGI research.

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AI-powered chatbot for instant website customer engagement and support.

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Outlit helps enterprises leverage AI agents in their deal-making workflows to create, price, and close deals faster.

Open source

All-in-one creative AI platform for instant image generation, photo editing, video creation, music composition, and AI chat.

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AI-powered platform for automating and optimizing creative workflows for businesses.

Open source

Open-source, privacy-focused AI assistant that runs locally on your hardware.

Open source · Self-hostable

AI-powered search engine aiming to revolutionize information discovery.

Open source

AI-powered platform for chat, coworking, and coding, offering frontier-quality outputs at reduced costs and integrating with over 50 connectors.

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Launch interactive AI streamers in minutes with customizable, life-like agents that multistream across platforms.

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Innovative AI solutions to unleash intelligence and drive business forward.

Open source

Your AI-powered health companion for instant guidance and mental wellness.

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A ministry-trained generative AI model delivering truth-centered, scripture-supported responses aligned with Pastor Chris' teachings.

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AI-powered platform for optimizing e-commerce product listings and content.

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Live narration for Claude Code and Codex sessions on macOS, helping users understand agent decisions and progress.

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Moriwa is an AI-powered platform that helps businesses automate customer support and sales interactions through intelligent conversational agents.

Open source

Kedmah is an AI-powered platform that helps businesses automate customer interactions and personalize experiences across various channels.

Open source

Pipclaw is an AI-powered platform that helps businesses automate customer support and sales interactions through intelligent virtual agents.

Open source

AskHorizon provides an AI-powered platform for businesses to automate customer support and sales interactions.

Open source

Dowjo is preparing to launch its generative AI product, inviting users to sign up for updates.

Open source

Cowpoke is an AI-powered platform that helps businesses automate customer support and sales.

Open source

AI-powered platform for deeper understanding and engagement with biblical texts.

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AI-powered chatbot solutions for customer support, knowledge management, and lead generation with source citation.

Open source

AI acceleration cloud platform for open source and enterprise.

Open source · Self-hostable

The de facto public leaderboard for frontier LLMs.

Open source

Generative AI platform for enterprises to build, train, and customize their own AI models.

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Unified API platform providing developers access to hundreds of large language models through one endpoint.

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Chinese AI company developing advanced models for Artificial General Intelligence (AGI).

Open source

Managed vector database for building scalable, reliable, and accurate AI applications and search.

Open source

Stability AI is a global leader in generative AI, developing cutting-edge open models for image, video, 3D, and audio, and professional applications for visual media creation.

Open source · Self-hostable

Developing advanced AI models with a focus on reducing hallucinations.

Open source

Platform for building and deploying custom AI agents connected to company knowledge and tools.

Open source

An open-source AI and machine learning platform for enterprises.

Open source · Self-hostable

Ultra-realistic voice AI platform powered by State Space Models for developers.

Open source

Enterprise Conversational AI platform for automating customer interactions and business processes.

Open source

AI security platform to control AI behavior and accelerate enterprise GenAI adoption.

Open source

Building Sovereign AI for India with full-stack generative AI models understanding Indian culture and diversity.

Open source

An open-source Python library providing a unified interface for interacting with various LLM providers.

Open source · Self-hostable

The platform for building reliable AI agents and LLM applications.

Open source

Omnichannel AI-powered communication platform for enterprise customer engagement.

Open source

Vectara provides an enterprise-ready AI Agent and Assistant platform with secure RAG.

Open source

AI skill layer enabling agents to reliably interact with over 3000 real-world tools and APIs.

Open source

AI development platform for building and deploying AI applications.

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Computational platform using LLMs trained on biological and chemical data for drug discovery.

Open source · Self-hostable

AI-powered platform for building and managing customer-facing applications and workflows.

Open source

Open-source autonomous AI agent platform that automates complex digital workflows.

Open source · Self-hostable

AI assistants for enterprise knowledge-intensive tasks, analyzing long-context multimodal documents.

Open source

An LLM reliability platform for faster, more confident LLM application development.

Open source

Cloud AI platform for building and deploying large-scale AI models.

Open source