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BitByteCore Silicon Desk
Stories by BitByteCore Silicon Desk, newest first.
4 stories
RAG vs Fine-Tuning: Which One Your Use Case Actually Needs
RAG and fine-tuning solve different problems, knowledge versus behavior, and picking the wrong one wastes money and ships worse results. A practical decision guide with an interactive picker, including why a million-token context window does not retire retrieval.
BitByteCore Silicon Desk · Jul 27, 2026 · 10 min read
Prompt Injection: The Unsolved Security Hole in AI Apps
Prompt injection is the oldest unsolved hole in AI apps: a language model cannot separate its own instructions from the data it reads, so hidden commands in a web page or email can hijack it.
BitByteCore Silicon Desk · Jul 27, 2026 · 13 min read
The Foundry Moat Moved to the Package
For twenty years the chip moat was the transistor. Since 2018 it has moved to the package: whoever runs the CoWoS, SoIC, and Foveros line decides whether an AI accelerator ships at volume. An interactive research edition.
BitByteCore Silicon Desk · Jul 27, 2026 · 5 min read
What an AI Agent Really Is: Stripping Away the Hype
AI agents fill every pitch deck in 2026. The actual mechanism is simpler and more fragile than the marketing suggests: a probabilistic loop wrapped around a language model, extended with tools and memory.
BitByteCore Silicon Desk · Jul 27, 2026 · 14 min read