Open-Source Model
An LLM whose weights are publicly downloadable: Llama, Qwen, DeepSeek, Mistral, Gemma, Phi.
- Licenses vary: Apache 2.0, MIT, Llama Community.
- Coding-specific: Qwen2.5-Coder, DeepSeek-Coder, Codestral.
- Foundation of the local-LLM ecosystem.
When to use: When fine-tuning, redistribution, or fully private inference is required.
Example: DeepSeek-V3 (671B params, MoE) released Dec 2024 open-weight, comparable to Claude Sonnet on benchmarks.