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PREMIUM
AI Underwriting: The Quiet Rewrite of Credit Decisioning
ai

AI Underwriting: The Quiet Rewrite of Credit Decisioning

Machine learning rewrote credit decisioning, but the binding constraint is not accuracy. It is the compliance machinery needed to deploy a model.

8 Sep 2026 12 min read
LLM Caching: Exact, Prefix, and Semantic, and What Each Actually Saves
ai

LLM Caching: Exact, Prefix, and Semantic, and What Each Actually Saves

Three LLM cache types solve different problems teams routinely conflate. What each saves, the hit rates you should actually expect, and where each one breaks.

7 Sep 2026 13 min read
Prompt Injection: The Unsolved Security Problem in Every LLM Application
ai

Prompt Injection: The Unsolved Security Problem in Every LLM Application

Why prompt injection has no parameterized-query fix, how indirect injection turns agents into attack tools, and the patterns that bound the damage.

7 Sep 2026 11 min read
newsletter

FinTekCafe Weekly: Somebody Is Always Holding the Liability

This issue: who gets paid when models train, the BaaS consolidation playbook, GPU repatriation math, AI gateways, zero trust, and card issuing.

6 Sep 2026 4 min read
PREMIUM
GPU Repatriation: The Utilization Math Deciding Where Inference Runs
technology

GPU Repatriation: The Utilization Math Deciding Where Inference Runs

Owned accelerators beat rented ones above a utilization threshold most teams never compute. The break-even math, and why idle GPUs are the expensive asset.

5 Sep 2026 11 min read
How Card Issuing Works: The Stack Behind Every Fintech Card Program
finance

How Card Issuing Works: The Stack Behind Every Fintech Card Program

The four layers behind every fintech card: network, sponsor bank, issuer processor, program manager. Who earns what, and what it takes to launch.

4 Sep 2026 13 min read
PREMIUM
Banking as a Service After the Crackdown: The Consolidation Playbook
finance

Banking as a Service After the Crackdown: The Consolidation Playbook

The middleware era of banking as a service is over. What replaces it is fewer, larger, compliance-first programs, and a harder diligence bar for founders.

3 Sep 2026 11 min read
Zero Trust Architecture: What It Actually Means Once the Marketing Is Stripped Away
technology

Zero Trust Architecture: What It Actually Means Once the Marketing Is Stripped Away

Zero trust explained without the vendor gloss: the real principle, the NIST 800-207 components in plain language, and what a migration actually costs.

2 Sep 2026 12 min read
PREMIUM
The Data Licensing Economy: Who Gets Paid When Models Train
ai

The Data Licensing Economy: Who Gets Paid When Models Train

Training data went from free scrape to priced asset in three years. Who sets the price, who captures the value, and why enterprises are giving theirs away.

1 Sep 2026 12 min read
Structured Outputs: How to Make LLMs Return Data Your Systems Can Trust
ai

Structured Outputs: How to Make LLMs Return Data Your Systems Can Trust

Constrained decoding against a schema, not prompt-and-parse, is how to get reliable JSON from an LLM. Schema design, validation layers, and failure modes.

31 Aug 2026 14 min read
What Is an AI Gateway: The Control Point Between Your Apps and Every Model
ai

What Is an AI Gateway: The Control Point Between Your Apps and Every Model

What an AI gateway does, how it differs from an API gateway, build versus buy options, the failure modes, and a rollout sequence for enterprises.

31 Aug 2026 12 min read
newsletter

FinTekCafe Weekly: The Bill You Approve Is Not the Bill You Pay

This issue: memory as the real AI lock-in, what multi-region actually costs, agent identity, Postgres consolidation, and who eats a fraud loss.

31 Aug 2026 4 min read
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