GitFounders4 Open Source Alternatives to Perplexity
A list of 4 carefully selected open-source alternatives to Perplexity.
The open-source alternatives are ranked based on our custom ranking system and score. This system takes into account various factors to determine the best alternatives.
If you’re looking for alternative features or workflows, here is a prepared detailed list of Perplexity open-source alternatives — each with its own distinctive strengths and key features.
Khoj offers a powerful, self-hostable AI second brain designed to amplify your research and automation efforts. It empowers users with customized AI agents that extract answers from the web or personal documents, making it an indispensable tool for creators and researchers.
Key Features
- AI second brain for personalized support
- Self-hostable and fully customizable
- Integrates with commercial and open weight AI models
- Deep research across documents and the web
- Automated scheduling and event-based notifications
- Multimodal support including voice and visual outputs
- Transparent, explainable AI reasoning
Khoj is a dynamic AI-powered research copilot that leverages integration with various language models like GPT, Claude, Gemini, and more to deliver tailored answers and deep research. It features custom chat controls, multimodal capabilities, document understanding, voice chat, and automation tools to streamline repetitive tasks and provide timely notifications. Its customizable nature makes it suitable for individual users, teams, and enterprises.
Scira is a minimalistic, AI-powered search engine that enables users to efficiently find information on the internet. Leveraging the Vercel AI SDK and models like Grok 2.0, Scira delivers an innovative search experience with a clean interface.
Key Features
- Minimalistic, user-friendly interface
- Powered by Vercel AI SDK for robust performance
- Utilizes advanced models like Grok 2.0 for accurate results
- Easy deployment through Vercel
Scira (formerly MiniPerplx) offers a streamlined search experience by integrating advanced AI models to retrieve precise information quickly. Built on the Vercel AI SDK, it supports powerful models like Grok 2.0 and features a toggle theme option for a personalized look. The tool also provides easy deployment options via Vercel, making setup straightforward and efficient.
Fullmoon is a powerful tool that enables users to chat with private and local large language models. Designed to run fully offline and optimized for Apple Silicon, it brings a billion parameters into your pocket while maintaining privacy through its open source framework.
Key Features
- Fully offline operation for enhanced privacy
- Optimized for Apple Silicon and Metal 3
- Customizable interface with themes and fonts
- Supports multiple platforms: iOS, iPadOS, macOS, visionOS
- Open source framework ensuring transparency
Fullmoon allows you to interact with local large language models directly on your device across iOS, iPadOS, macOS, and visionOS. It runs offline without internet access and is optimized for Apple’s hardware using Metal 3 and Swift MLX. With a customizable interface including personalized themes, fonts, and system prompts, Fullmoon supports quick chats and integration with shortcuts. The app features several models such as Llama-3.2 and DeepSeek-R1 variations, ensuring a secure and efficient conversation experience.
Letta (formerly MemGPT) is a powerful framework for creating LLM services with built-in memory and stateful agents. It enables developers to build AI agents with infinite context and human-like memory, facilitating continuous learning and improvement over time.
Key Features
- Stateful agents with built-in, persistent memory
- Agent Development Environment (ADE) for real-time visualization and editing
- Infinite context support to avoid context window overflow
- Robust API and SDK integrations (Python, Node.js/TypeScript)
- Scalable deployment options with Docker and Kubernetes
Letta empowers users to design and deploy AI agents that maintain persistent memory and reasoning across sessions. The platform integrates an Agent Development Environment (ADE) offering a visual interface to iterate on prompts, tools, and model configurations in real time. With robust APIs, SDKs, and production-ready deployment options, Letta supports over 7,000 tools and ensures agents operate within optimized context windows to enhance performance.
Price comparison of Perplexity open-source alternatives
| Tool | Tier 1 | Tier 2 | Tier 3 | Details |
|---|---|---|---|---|
 | $0 Humanist | $30 Futurist | $20 Team (> 4 people) | Learn more |
* Pricing shown is based on publicly available information and may not reflect current rates. Visit each tool's website for detailed pricing information and additional tiers.
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Perplexity Games offers Cleveland's best escape rooms! Book one of five immersive games now for an exciting adventure with family or friends!
2016
2
Cleveland, United States