Fikri Firman Fadilah7 min read
Reading GPT-6.5 Leaks Before a Codename Reversal Costs You a Migration
A tiered method for weighing GPT-6.5 rumors, a dated look at one reversed leak, and an alert setup that waits for API evidence.
Journal
Articles on engineering,
systems, and product craft.
A compact reading surface for technical notes, architecture decisions, and observations from shipping real systems.
Fikri Firman Fadilah7 min read
Before You Upgrade Your Model Build an Eval Harness From Your Own Prompts
How to read recent model release news, track regressions against a baseline, and run a small offline eval before migrating.
Fikri Firman Fadilah6 min read
Why Cheaper Models Can Win on Cost per Completed Task
How to compare LLMs by cost per completed task, and route work between Haiku and Sol with validated escalation.
Fikri Firman Fadilah8 min read
What the GPT-7 Bel Rumor Changes for Your Model Migration Plan
How to separate verified GPT-7 and Bel claims from rumor, and prepare model migrations with evals, pinning, and staged rollouts.
Fikri Firman Fadilah9 min read
Why We Picked a Polling Outbox Over Debezium for 4,000 Writes per Second
How we weighed a polling transactional outbox against Debezium CDC for order events, with the tradeoffs and production numbers.
Fikri Firman Fadilah4 min read
Running Claude Haiku 5.5 for High-Volume Ticket Triage
What Claude Haiku 5.5 costs, what its reported benchmarks show, and how to call it from Python for cheap, high-volume classification.