Reasoning is one of the most complex challenges for generative artificial intelligence models. It's no longer enough for AIs to simply complete texts; they must now understand contexts, infer, and make logical decisions. In this guide, we review which current models reason best and why.
Step-by-step guide:
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What do we mean by "reasoning"?
It refers to the model's ability to infer conclusions from incomplete information, make logical deductions, solve complex problems, and maintain coherence throughout the dialogue. -
The most outstanding models in reasoning (2025):
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GPT-4 (OpenAI): Excels in logical reasoning, structuring ideas, and contextual understanding. Has stable working memory and excellent performance in programming, analysis, and writing tasks.
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Claude 3 Opus (Anthropic): He excels in reflective thinking and argumentation. He has an "inner voice" more focused on honesty and self-control, which improves logical coherence.
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Gemini 1.5 Pro (Google DeepMind): Optimized for multimodal tasks, it excels in technical and scientific reasoning, especially in mathematics and symbolic logic.
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Mistral Mixtral 8x7B: Although lighter, it surprises with its efficiency in structured tasks and mid-level reasoning.
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Which models stand out in different reasoning scenarios?
When it comes to complex tasks, each generative AI model has distinct strengths. GPT-4, for example, excels at constructing complex arguments and structuring ideas coherently, making it ideal for technical writing or research. Claude 3 Opus, on the other hand, has a highly refined ability to reason step by step and detect contradictions, making it a solid choice for solving complex problems or evaluating the logic behind a claim.
On the other hand, Gemini 1.5 Pro demonstrates outstanding performance in technical environments, especially in mathematical logic and programming, thanks to its multimodal approach. Finally, Mixtral 8x7B, although a lighter model, surprises with its efficiency in tasks that require structure, such as classification, organizing ideas, or planning.
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What about multimodal reasoning?
Gemini 1.5 and GPT-4V (with vision) lead in scenarios where reasoning between images, texts and diagrams is required. -
Final recommendation:
If logical reasoning is key to your task, Claude and GPT-4 are the most reliable options available today. For technical or visual tasks, Gemini is an excellent choice.