Glossary term
Glossary term
Agentic Systems
Reasoning is the AI's ability to think through a problem, break it into steps, and make informed decisions. It is what separates reactive bots from intelligent agents that can handle ambiguity, follow goals, and adapt in real time.
OpenAI o1 (September 2024) and o3 introduced inference-time reasoning as a new model class.
Anthropic Claude Opus 4.5 extended thinking allocates compute to reasoning before final response.
DeepSeek-R1 and Google Gemini 2.5 Pro Deep Think mode are open and proprietary reasoning models.