Global scale
I run AI where trust, adoption, and economics all matter.
Five concurrent enterprise programs, a $30M portfolio, 120+ contributors, and CEO-active platforms across a global public company.
D. Brian Letort, Ph.D.
AI strategy for people who have to operate it.
I write about the systems layer of enterprise AI: the models, data foundations, agentic workflows, economics, governance, and operating patterns that turn experiments into durable capability.
- Global enterprise AI operator
- $30M AI and data portfolio
- Hands-on builder and coder
- AI industry intelligence
- PhD-level teaching
- 1,000+ member AI community
- 5 U.S. Patents
- Context Compilation trilogy
- 16 Pluralsight courses
- 2 books
Follow the operating layer
Board-ready AI strategy, operator-grade technical depth, and weekly signal from the AI market.
Start reading
What to read next.
qwen38 local wow / Part 04//10 min read
262K on 32 GB: The Serving Stack That Changed the Desk
Qwen3.8-27B can hold its native 262K context window on one RTX 5090. The reason is architectural, and the serving stack matters as much as the weights.
Newsletter
The Operating Layer.
Subscribe for governed enterprise AI strategy, market signal, and operator-grade technical depth.
qwen38 local wow / Part 00//17 min read
Same Weights, Different Product: How the Harness Made Qwen3.8 Useful.
qwen38 local wow / Part 01//11 min read
The Trap That Walked: Qwen3.8 on a $6K Desk (Part 1)
Industry intelligence
AI market signal, organized weekly.
Cross-stack flywheel
AI Stack Weekly
For officers tracking AI market movement.
Latest / Issue 18
The duration-mismatch thesis just moved into the GPU vendor's own 8-K — NVIDIA is now the residual-value underwriter of a 20-year OpenAI lease, and Marvell is teaching Google how to buy silicon on the revenue that has not yet arrived
Model layer
The Model Pulse
For architects tracking model capability shifts.
Latest / Issue 18
OpenAI cut Sol by more than a fifth for three months while an unknown lab shipped an MIT frontier — the same week the industry conceded that vendor-reported is what the top of the board looks like now
Operating layer
Agent Techniques Weekly
For builders operationalizing agentic work.
Latest / Issue 18
Anthropic promoted skills and computer use to GA and gave the agent a way to load them progressively — this week's technique change is that skills are versioned artifacts, not prompts, and the sandbox runs them under the caller's identity
Procurement surface
The Application Layer
For buyers watching AI reshape software.
Latest / Issue 17
Last week's question was whether the agent comes in through the front door or gets assigned work — this week the incumbents answered by giving the agent the user's credential
Research
Context Compilation Theory.
A foundational paper and three-paper trilogy on the systems layer between retrieval and reasoning — the governed, measurable, optimizable layer where reliability lives, where provenance is enforced, and where token economics becomes a design surface rather than an accounting line.
Why trust the signal
Strategic altitude. Technical depth. Global scale.
Technical depth
I can move from boardroom framing to code-level architecture.
Data, data science, machine learning, software engineering, agents, RAG, model routing, evals, and the operating layer between them.
Public body of work
I write, teach, publish, and build in the open.
A Context Compilation research program, PhD teaching, 16 Pluralsight courses, two books, and a weekly AI industry corpus.
Where to go next
Choose your path.
Speaking and executive briefings
I accept a small number of speaking, board, press, and executive briefing requests each year.