Tools & Platforms
Open Source AI
AI models whose weights are publicly released — anyone can run, fine-tune, and modify them.
Also known as: open weights,open AI models
Open source AI refers to AI models whose weights have been publicly released — anyone can download, run, fine-tune, and modify them. Major open-source models in 2026: Meta's Llama 4, DeepSeek V3 and R1, Mistral's open weights, Alibaba's Qwen-3, Tencent's Hunyuan Video, Genmo Mochi, Black Forest Labs Flux dev. Tradeoffs vs closed models like GPT-5: open models cost dramatically less to run (you pay for compute, not per-token API fees), are auditable and customisable, but typically trail the frontier on hardest benchmarks. Critical for: self-hosting, privacy-sensitive workloads, regulatory compliance, fine-tuning, research.
