Originally published on the QuickSilver Pro blog . The usual reason to choose an open model over Claude is price. Now that every Claude model on QuickSilver Pro costs 75% less than Anthropic's list price, that reason needs checking again, and so does the question of what you give up in quality.
Source: [Dev.to](https://dev.to/xiun_xiao_6eae2df5c108c5f/open-models-vs-claude-kimi-k3-glm-53-and-deepseek-v4-pro-against-sonnet-55-and-opus-55-3f1d)