Artificial intelligence is evolving rapidly and is accompanied by a recurring debate: should we give priority to proprietary models (OpenAI, Google, Anthropic...) or the open-source models (Mistral, DeepSeek...)?
At first glance, these two approaches seem to be opposed. On the one hand, proprietary models offer impressive performance and simplified deployment. On the other hand, open-source models guarantee transparency and flexibility, but require more technical expertise. However, The reality is much more nuanced.
✔️ Great from the start, few adjustments required
✔️ Integrated technical support and maintenance.
❌ Closed, it is impossible to examine their inner workings.
❌ High costs, depending on usage and API calls.
✔️ Customizable and adaptable to specific business needs.
✔️ Optimizable costs depending on the infrastructure chosen.
❌ Require internal expertise for training and optimization
❌ Less efficient without specific adjustments and fine-tuning.
The opposition between open-source and proprietary is actually a false dilemma. The choice of model depends above all on specific business needs.
The real question is not “Which model is the best?”, but “What model is the most relevant for my use?”. Each approach has its pros and cons, and their relevance varies depending on the context. Rather than opposing these solutions, it is a question of identifying the right balance between performance, cost and data control.
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