Atomic Chat: Open-Source Offline ChatGPT Alternative Runs 1000+ Models on 8GB RAM Macs

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Atomic Chat is an open-source ChatGPT alternative that runs LLMs completely offline on consumer hardware — a MacBook Air with 8GB RAM can run 3B models, 16GB for 7B, 32GB for 13B. Browse and one-click download models from HuggingFace (Llama, Qwen, DeepSeek, Mistral, Gemma). Also supports cloud providers (OpenAI, Anthropic, Groq). Includes autonomous workflow agents that think, act, and execute fully locally. Free forever with no subscriptions or token limits.