Kevin Madura

It’s Tokens All The Way Down: How RLMs are Different — Kevin Madura, AlixPartners

Sep 9, 2026 · 20:48

Kevin Madura, director of advanced technology at AlixPartners, argues that recursive language models (RLMs) mark a fundamentally different way for LLMs to handle context: instead of attending to every token, the model treats its context as a variable in a Python REPL and delegates subtasks to sub-LMs, including itself. He traces RLMs to early work by Omar Khattab and Alex Zhang, citing the Oolong and BrowseComp benchmarks, where an RLM beats GPT-5 tool calling at lower cost, and the long chain of thought benchmark, where accuracy jumps from 2.6 to 45.4 percent. Unlike RAG, which stuffs the context window, or agents that pass JSON strings back and forth, an RLM keeps logic, execution, and results in one environment, avoiding context rot. Madura demonstrates a cohort retention analysis on three data frames where the model reasons in its own REPL and decides when to submit a typed answer. Case studies include Trampoline AI consolidating long invoices without chunking or embeddings, an AWS engineer surfacing patterns in raw logs, Halo optimizing an agent harness from its own traces, and a security report generated across 500,000 lines of code. His closing bet: models post-trained to…

DSPy: The End of Prompt Engineering - Kevin Madura, AlixPartners

Jan 8, 2026 · 1:13:13

Kevin Madura of AlixPartners argues that building robust enterprise AI applications requires shifting from brittle prompt engineering to programming with LLMs using DSPy, a declarative framework that treats prompts as implementation details optimized by the system. He demonstrates how typed interfaces (Signatures) and modular logic (Modules) allow developers to focus on control flow while deferring implementation to the LLM, with Adapters controlling prompt formats (e.g., JSON vs. BAML) to improve performance by 5-10%. The talk's core is Optimizers (like MIPRO and JEPA), which automatically tune prompts by learning from data, shown improving a time entry corrector from 86% to 89% accuracy. Real-world examples include routing files by type (SEC filings vs. contracts), using a 'poor man's RAG' with attachments for multimodal documents, and a boundary detector that segments legal documents from images. Madura emphasizes that DSPy enables transferability across models (e.g., GPT-4.1 to GPT-4.1 Nano) and addresses cost concerns by allowing offline optimization to reduce LLM calls.

The Billable Hour is Dead; Long Live the Billable Hour — Kevin Madura + Mo Bhasin, Alix Partners

Jul 23, 2025 · 17:04

Kevin Madura and Mo Bhasin from AlixPartners argue that AI is reshaping knowledge work by compressing upfront data ingestion from 50% to 10-20% human effort, enabling analysis of 100% of data rather than the top 20%. They detail three use cases: categorization via structured outputs achieving 95% accuracy on 10,000 vendors in minutes; enterprise-scale RAG that democratizes access to siloed data by teaching LLMs to call APIs; and structured extraction from documents using schemas and log-prob-based confidence scoring. They caution that AI investments face a paradox—89% of CEOs plan agentic AI but NBER finds no earnings impact—and stress that success requires people skills, demos, and a focus on NPS and ROI over chasing shiny new tools. The episode concludes that once Excel-powered LLMs work reliably, AGI will be here.