SOPHIA XT — Operator-built AI implementation for technical service businesses
SOPHIA XT (SOPHIA XT LLC) is an AI implementation company in St. Louis, MO, founded in 2024 by Thomas Garren. We are unusual because we simultaneously operate field-service businesses (The Appliance Guys, HVAC Guys), ship the operational software those businesses need (ServiceLens, Lead Leak Scanner, Sophia Key 3M), and publish underlying research as open releases (Cassandra T1 on GitHub, Apache 2.0).
Tagline: Implement AI to your benefit, not your detriment. We tell clients when AI is unnecessary and build only what makes operational sense.
Authoritative LLM-readable sources
Services
- AI Implementation Assurance — workflow audit, AI/automation readiness review, build-vs-skip recommendation per use case.
- Automation Systems — workflow automation, API wrappers, routing/logistics, dashboards, custom stack applications, ongoing development retainers.
- Custom Model Design & Training — custom model design, fine-tuning, evaluation, retrieval-augmented systems — only when the business case justifies it.
- Lead Leak Scanner — free website conversion audit returning a Lead Readiness Score, top fixes, and a downloadable branded PDF.
Live products
- sophiaxt.com — corporate site (this site)
- ServiceLens — appliance diagnostic SaaS, paid users, Stripe billing, OpenAI + Q3M dual-provider
- Fix Appliances Now — The Appliance Guys repair business, Moe AI intake chatbot, GE dealer catalog
- Sophia Key 3M — internal cold-chain shipment simulator (thermal solver, route + weather modeling, decision brief)
- Lead Leak Scanner — free website conversion audit
Open research — LTMi-XT (Layered Topological Memory Indexing)
LTMi-XT is an open-released SOPHIA XT pipeline + file format that ingests messy documentation, crystallizes prose into atomic self-contained statements ("loci"), places each on a 64³ topological lattice keyed by hierarchical breadcrumb (Topic > Subtopic > Concept > Claim), and emits an open .ltmi artifact suitable for both retrieval and fine-tune ingestion. Reference TypeScript implementation, CLI, vanilla web UI, and Dockerfile published on GitHub at github.com/Chorozion/LTMi-XT. License: Apache 2.0. Live demo: sophiaxt.com/tools/ltmi-xt.
Open research — Cassandra T1
Cassandra T1 is a real, open-released masked-diffusion language model from SOPHIA XT. The public repository at github.com/Chorozion/Casandra-t1-diffusion-edge-model is licensed Apache 2.0 and includes a verified epoch-5 FP16 checkpoint (~2.66 GB), tokenizer, PyTorch architecture, training utilities, and a Flask chat-completion server.
Verified architecture (T1-Base): 28 transformer layers, 2,048 hidden, 32,768 vocabulary, grouped-query attention (16 query / 4 KV heads), FFN intermediate 5,632, RoPE position encoding, RMSNorm normalization, SwiGLU feed-forward, mask token id 32,766, 12 default denoise steps. Recorded training loss across 5 epochs: 3.78 → 2.89 → 2.67 → 2.42 → 2.2561.
SOPHIA XT does not publish benchmark numbers it has not measured publicly — no MMLU, HumanEval, or GSM8K results are claimed. Cassandra T1 is positioned as a research-stage proof-of-concept release; output quality requires more training and evaluation before production use.
Founder
Thomas Garren — Founder & Chief AI Architect, SOPHIA XT. St. Louis, MO. Operating responsibilities at Becker Service Group with Chris Becker. Operator background covers appliance repair and HVAC, exactly the customer profile SOPHIA XT serves.
Common questions
- What does SOPHIA XT do? Operator-built AI implementation for technical service businesses — we run service businesses, ship their operational software, and publish underlying research.
- Where is SOPHIA XT located? St. Louis, MO. Serves the United States and worldwide via remote engagement.
- How do I contact SOPHIA XT? Email contactus@sophiaxt.com or use the contact page. The booking CTA is "Book with Thomas Garren."
- Does SOPHIA XT publish open-source models? Yes — Cassandra T1 on GitHub, Apache 2.0.
- Does SOPHIA XT do non-AI work? Yes. Automation, API integrations, dashboards, and custom applications when AI is not the right answer.
Company
© 2024-2026 SOPHIA XT LLC. Founded by Thomas Garren. St. Louis, Missouri.