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  2. How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era
How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show · Jan 16, 2026

Building AI isn't about chasing AGI but creating 'Artificial Programmable Intelligence' with system-level abstractions like DSPy.

DSPy Aims to Be the "C Language" for AI, Abstracting Away "Assembly-Level" Prompting

DSPy introduces a higher-level abstraction for programming LLMs, analogous to the jump from Assembly to C. It lets developers define program logic and intent, which is then "compiled" into optimal prompts, ensuring portability and maintainability across different models.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

AI's True Goal Isn't General Intelligence, But Building Programmable Systems

The pursuit of AGI is misguided. The real value of AI lies in creating reliable, interpretable, and scalable software systems that solve specific problems, much like traditional engineering. The goal should be "Artificial Programmable Intelligence" (API), not AGI.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

AI "Agents" Are Like Grad Students; AI "Systems" Are Like Software—We Need Both

The future of AI requires two distinct interaction models. One is the conversational "agent," akin to collaborating with a person. The other is the formally programmed "system." These are different paradigms for different needs, like a chair versus a table, not a single evolutionary path.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

AI's True Bottleneck Is Specifying Human Intent, Not Model Capability

As models become more powerful, the primary challenge shifts from improving capabilities to creating better ways for humans to specify what they want. Natural language is too ambiguous and code too rigid, creating a need for a new abstraction layer for intent.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

Over-Engineering AI Intelligence Leads to Regret as Simpler, Scalable Methods Prevail

AI development history shows that complex, hard-coded approaches to intelligence are often superseded by more general, simpler methods that scale more effectively. This "bitter lesson" warns against building brittle solutions that will become obsolete as core models improve.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

Modern AI Systems Require Three Irreducible Components: Code, Natural Language, and Data

To fully express intent, AI applications cannot rely on a single modality. They need structured code for control flow, natural language for defining fuzzy tasks (like in DSPy's signatures), and example data for optimization and capturing long-tail behavior.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

DSPy Combines an Imperative Python Shell with Declarative LLM "Signatures" at the Leaves

DSPy's architecture mirrors human thought by providing an imperative structure (standard Python code) for overall program flow. It then isolates ambiguity into declarative "signatures," which define fuzzy tasks for the LLM to execute at the program's leaves, offering the best of both paradigms.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

DSPy Optimizers Exist to Preserve Abstraction, Not Just to Outperform Human Prompt Engineers

The optimization layer in DSPy acts like a compiler. Its primary role is to bridge the gap between a developer's high-level, model-agnostic intent and the specific incantations a model needs to perform well. This allows the core program logic to remain clean and portable.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago

Frontier AI Labs Now Deny "Scaling Is All You Need," Focusing on Complex Post-Training Pipelines

The original playbook of simply scaling parameters and data is now obsolete. Top AI labs have pivoted to heavily designed post-training pipelines, retrieval, tool use, and agent training, acknowledging that raw scaling is insufficient to solve real-world problems.

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era thumbnail

How Foundation Models Evolved: A PhD Journey Through AI's Breakthrough Era

The a16z Show·a month ago