Which LLM for your business? Mistral, GPT and LLaMA compared

Not all language models are equal. Here's how to choose the right one for your professional use cases. The LLM landscape in 2025: The language model market has exploded: GPT-4o from OpenAI, Claude from Anthropic, Gemini from Google, Mistral from French startup Mistral AI, and LLaMA from Meta. Each has strengths, weaknesses and implications for cost, privacy and sovereignty. GPT-4o: the versatile leader: OpenAI's model remains the benchmark for general quality. Strengths: versatility, rich ecosystem, multimodal capabilities. Weaknesses: high cost at scale, data sent to the US, single vendor dependency. Mistral: the French sovereignty champion: Mistral AI offers performant models that can be deployed on-premise. Strengths: open-weight models, local deployment possible, excellent performance/size ratio, French company. Ideal for sovereignty-conscious SMEs. LLaMA: the research and customisation choice: Meta's LLaMA models are open source and excellent for fine-tuning. Strengths: deep customisation, active community. Weaknesses: requires ML skills, restrictive licence above a threshold. Our recommendation: For SMEs, Mistral 7B offers the best compromise: solid performance, local deployment under €200/month, and native compliance.