The Digital Data Design Institute at Harvard is now the Harvard Business School AI Institute.

CompanyBasic / General-Purpose ModelsReasoning / Agentic Models
Open AIGPT-5.2 or GPT 5.3 InstantGPT-5.3 (thinking / “GPT-5 Pro” deep-reasoning variant)
AnthropicClaude Haiku 4.5 (fast / cost-efficient general use)Claude Sonnet 4.5 ((intermediate) complex reasoning, agents / coding)
Claude Opus 4.5 ((advanced) complex reasoning, coding, agentic & enterprise tasks)
GoogleGemini 2.5 (fast / literal general-purpose / multimodal)Gemini 3.1 Pro (and Deep Think) (reasoning / strategy / vibe coding)
MetaLlama 4 Scout (lightweight / general-purpose)Llama 4 Maverick (stronger reasoning / coding / larger-scale agentic potential) 

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