Apps similar to Apertus include Lumo by Proton, which is open source with a free version. Other options are ChatGPT, DeepSeek, Mistral Vibe and Claude. You're spoiled for choice with AI Chatbots like Apertus: we list more than 100 alternatives for the web, Mac, Windows, Linux and Android.
Kolibri is Aleph Alpha's mixture-of-experts (MoE) reasoning model, with a focus on German and English. The model supports an explicit reasoning mode and tool calling. It is optimized for long-context and inference efficiency.
Germany
EU
MiroThinker is an open-source search agent model, built for tool-augmented reasoning and real-world information seeking, aiming to match the deep research experience of OpenAI Deep Research and Gemini Deep Research.
Singapore
LlamaGPT is a chatbot that provides a ChatGPT-like experience, with no data leaving your device.
Moshi is an innovative AI chatbot with advanced voice recognition, real-time interaction, and dual audio streams, setting up a new standard for voice-based chatbots.
Japan
NanoGPT is a platform that gives you access to many AI models through one pay-as-you-go interface, so you don’t have to manage multiple subscriptions or provider accounts. It also offers privacy-conscious and crypto-friendly payment options.
United States
Combining Google's knowledge graph, ChatSonic delivers real-time data, voice interaction, AI-produced visual content, personalized avatars, and API for services. It revisits past dialogs for informed responses and integrates Twitter for chat responses. Supported in multiple languages on Android, iOS, and web.
United States
Instella, a large language model tool developed by AMD, provides exceptional performance with open access to model weights and training data, promoting advancements in AI. It bridges the gap between fully open and open weight models by outperforming competitors like Llama-3.2-3B.
United States
Comprehensive AI suite for Galaxy devices includes photo, video, and audio editing, generative and side-by-side tools, background noise removal, writing and note-taking assistance, AI-powered briefings, real-time info, content organization, and seamless device integration.
South Korea
Pi is a new kind of AI, one that isn’t just smart but also has good EQ. We think of Pi as a digital companion on hand whenever you want to learn something new, when you need a sounding board to talk through a tricky moment in your day, or just pass the time with a curious and...
United States
Amazon Nova is a new generation of foundation models with frontier intelligence and industry leading price performance. Generate text, code, and images with natural language prompts.
United States
A smaller, lighter-weight version of OpenClaw—natively multi-agent, compiles to Rust, and built on the Swarms framework and Swarms ecosystem. One API, unified messaging across Telegram, Discord, and WhatsApp with optional Claude-powered reasoning.
