joey.hersh
01 Form Agentic Systems Engineer · San Antonio

I ship inside a bank. My agents ship while I sleep.

Regulated credit-risk data by day. Twelve agent environments running real jobs by night. Three companies founded.

me@joeyhersh.com (713) 505-3289 github.com/joey12725

  • records a day ≈26M

    through production data pipelines at USAA

  • tokens processed ¼ trillion+

    input plus output, across every model family since GPT-3

    i
  • campaign leads 40,000

    at about $0.29 per lead for Fit & Flourish

  • funding and prizes $100K+

    for ReCap Budget, $46K cash plus about $60K in-kind

metrics/token-methodology

modeled estimate · input plus output tokens · not a prompt count

A quarter trillion tokens, and where they went

Input plus output tokens across every model I've used since GPT-3, reconstructed from subscription ceilings, API bills, and one measured agent ledger. Cached context reads count, because agentic coding re-reads enormous context and that is where most of the volume lives. It is a modeled estimate, not a meter. The shape is the point: a lot of tokens through a lot of different models, harnesses, and providers.

Horizontal bar chart of modeled tokens processed by model family, in billions, plus one measured agent-environment ledger. OpenAI 190B Anthropic 38B Google 9.0B Open-weight and self-hosted 8.0B One agent environment, measured 18B
0¼ trillion300B

About 155B to 263B. The bars sum to about 263B. The headline rounds that to "more than a quarter trillion" and treats it as a modeled ceiling.

Fifteen harnesses and providers

  • ChatGPT
  • Codex CLI
  • Claude Code
  • claude.ai
  • Cursor
  • OpenCode
  • Gemini CLI
  • Hermes
  • OpenClaw
  • n8n
  • Cyrus
  • AWS Bedrock
  • OpenRouter
  • ComfyUI
  • Unsloth

Seven years of models

  1. 2019GPT-2 fine-tunes on Colab
  2. 2022GPT-3 fine-tuned classifier, OPT-1.3B document QA, GPT-4 API early access
  3. 2023GPT-3.5 Turbo in production, Falcon-40B RAG inside a bank, Cyrus on the first LangChain release
  4. 2024Claude 3.5, Llama 3, Bedrock agents, LangGraph, AutoGen at launch
  5. 2025Codex, Claude Code, Cursor, Gemini CLI, Hermes and OpenClaw, thousands of scheduled agent runs
  6. 2026GPT-5 family, Claude 5 family, Qwen 3 fine-tunes as a custom model router

How the number is built

  • Shared reconstruction of the OpenAI subscription usage. Models the OpenAI family alone at 225 to 250 billion at the ceiling. The split across the other families is my reconstruction; no provider export was reconciled.
  • Hermes scheduler ledger, August 19 to September 17, 2026. 920 recorded runs and 1.34 billion prompt-plus-completion tokens in thirty days, one profile, scheduled jobs only.
  • Independent measurement of Pro-plan API-equivalent value. Third-party. Used as the ceiling anchor for the largest family.
  • Read-only inspection of one Hermes environment's usage ledger. Measured, but limited to retained rows in one of twelve environments.
Tokens processed by model family
FamilyModelsHarnessesBasisBillions
OpenAIGPT-3 fine-tunes, GPT-3.5 Turbo, GPT-4 early API access, GPT-4o, o-series, GPT-5 through 5.6ChatGPT, Codex CLI, the API, Cursor, Cyrussubscription ceilings plus API spend, 2022 to 2026190B
AnthropicClaude 3.5 through Claude 5, including Fable and OpusClaude Code, claude.ai, Cursor, Hermes, Bedrocksubscription ceilings plus API spend, 2024 to 202638B
GoogleGemini 1.5 through Gemini 3, Vertex AIGemini CLI, AI Studio, an internal spec-driven CLI forkAPI spend and CLI usage, 2024 to 20269.0B
Open-weight and self-hostedGPT-2 fine-tunes, OPT-1.3B, Falcon-40B, Llama 2 and 3, Mistral, Qwen 3 fine-tuned with Unslothlocal GPUs, ChromaDB and pgvector RAG stacks, OpenRouter, ComfyUIlocal runs and OpenRouter spend, 2019 to 20268.0B
One agent environment, measuredmixed, routed by taskHermesread-only ledger of input plus cache-read tokens in one environment, September 202618B
Modeled total263B
02 Fracture

Three jobs, one skill.

Deciding what the model gets to touch, and proving it afterward.

Inside a bank

Nineteen years of credit-risk data, corrected in place.

Since 2023 on a USAA credit-risk data team. Legacy pipeline retired with zero downtime. FICO 10T asset delivered for CECL on the regulatory deadline. Dozens of SKILL.md guides for the team, and a seat in the guild that decides how the bank uses generative AI.

19 yrshistorical backfill
Read the system →
Running agents

A thousand scheduled runs overnight, each with a receipt.

Joy is my agent: Hermes runs the loop, GBrain remembers on pgvector, a self-hosted Plane board holds the work we hand each other, and a verifier refuses to say "done" without evidence. Six more people and six clients run their own Hermes agents on infrastructure I built.

1,002runs in 18 hours
Read the system →
Founder

Seven developers, forty thousand leads, one company still running.

ReCap Budget raised over $100K and shipped a fine-tuned receipt classifier before function calling existed. Fit & Flourish's creative loop produced 40,000 leads at 29 cents each. Guadalupe Automation is where I build large systems nearly single-handedly with an AI development pipeline I've spent years honing.

$100K+raised, cash and prizes
Read the system →
03 Flow

The systems.

The rest of the shelf, twenty-two more →

04 Ground

Where I've worked.

June 2024 – present Data Engineer III · USAA

I deliver and support regulated credit-risk data systems on Snowflake, dbt, Python, SQL, GitLab CI/CD, Control-M scheduling, and a validation framework that has to satisfy auditors as well as engineers.

  • Delivered three major consumer-lending features in the second half of 2025, including a legacy pipeline retirement and a FICO 10T data asset for CECL, both on the regulatory deadline.
  • Corrected and backfilled nineteen years of historical data (2006 to 2025) with targeted comparisons instead of full rebuilds, and kept reporting uninterrupted through the transitions.
  • Contribute to the bank's Data Science and Engineering Guild, where decisions and education about how generative AI is implemented across the company get made.
  • Built a reusable validation query that collapsed a multi-layer transformation into one check the whole team and its validators now use.
  • Mentored teammates, onboarded new engineers, taught agentic development practices, and wrote dozens of SKILL.md guides for the repetitive processes in my area.
  • Delivered modernization work across a reusable authorization view, a certified-source migration, and a 300,000-row seed file promoted into a governed Snowflake external table.
Read the system →
Where
San Antonio, Texas
When
June 2024 – present
January 2026 – present Founder and CEO · Guadalupe Automation

I design and build agentic systems for operations-heavy businesses, from discovery and architecture through deployment. The codebases are large and I develop them nearly single-handedly, with an AI development pipeline I've spent years honing: specs, coding agents, verification gates, and evidence on every delivery.

  • Architected a store-close reconciliation platform for a multi-store retailer where Python owns reconciliation and ledgers, models own document extraction and summaries, and people review the exceptions.
  • Designed SecondHome, a source-to-score qualification system for distressed-property leads with provenance, confidence, and a written call rationale on every record.
  • Run isolated client agent deployments on per-client VPS infrastructure with preconfigured container stacks, separate from the shared-host environments I run for private users.
  • Build with a fixed pipeline: outcome and acceptance test first, split deterministic work from model judgment, smallest useful build, agents implement bounded changes, deterministic validation, human review where consequences are real, live readback after deploy, evidence attached to the task.
  • Lead one employee and partner with a co-founder who runs sales; I own the technical delivery end to end.
Read the system →
Where
San Antonio, Texas
When
January 2026 – present
2024 – 2025 Co-founder, marketing and automation lead · Fit & Flourish

I built the autonomous creative-testing loop and the marketing analytics behind a product launch, and led the team of six that kept it fed.

  • Built an end-to-end automated Meta Ads pipeline that generated creative variants, monitored performance, killed poor performers, and iterated daily with a human review step in Discord.
  • The launch waitlist campaign produced 40,000 leads and brought cost per lead from about $2.19 down to about $0.29.
  • Led a team of six and owned the e-commerce, referral, tracking, and survey automation stack.
Read the system →
Where
San Antonio, Texas
When
2024 – 2025
December 2021 – September 2023 CEO and Machine Learning Engineer · ReCap Budget

A student venture that turned into a real one. Personal-finance software that read your receipts better than anyone else on the market. Serverless on AWS before that was the obvious choice.

  • Raised $46,000 in cash and about $60,000 in in-kind prizes, largely through the Stumberg Venture Competition, and led a team of seven developers with hiring and firing authority.
  • Built the receipt pipeline: S3 to Lambda to Textract, behind a CNN gate. Fine-tuned a GPT-3 classifier on 40,000 curated items, covering 100+ categories at over 85% reported accuracy.
  • Shipped structured JSON output from language models before function calling existed, and did bias-mitigation work on the fine-tuned advice-generation model.
Read the system →
Where
San Antonio, Texas
When
December 2021 – September 2023
June 2023 – August 2023 Data Engineering Intern · USAA

I took a credit-card underwriting data feature from requirements to production in one summer. Then I talked a bank into letting an intern demo a local RAG chatbot.

  • Parsed semi-structured Kafka JSON into usable Snowflake views, wrote the Python validation scripts, and cleared the production control gate inside the internship window despite two requirement changes.
  • Built a local, references-first benefits assistant on ChromaDB and Falcon-40B, no internet access. Presented it to hundreds of employees, then helped five colleagues deploy it.
Read the system →
Where
San Antonio, Texas
When
June 2023 – August 2023
2020 – 2024B.S. in Computer Science · Trinity University

San Antonio, Texas. Graduated 2024.

What my manager wrote.

“You had a really strong year, happy to have you on the team. You bring something we didn't have before.”

USAA manager, 2026

“Joey hit the ground running and never slowed down a bit.”

USAA manager, 2023

“He mentored teammates, shared AI-assisted development practices, created reusable documentation and troubleshooting guides, and partnered effectively with engineering, QA, DBA, and business stakeholders.”

USAA manager, 2026

05

The rest of the shelf.

All 22 in the lab →

06

Bring the ugly process. I'll make it a repeatable workflow.

I'll find the decisions, automate what deserves it, and leave enough evidence that the next engineer can trust it.

me@joeyhersh.com(713) 505-3289github.com/joey12725B.S. in Computer Science, Trinity University, 2024