The model at the top of the leaderboard is not necessarily the model you should ship. Leaderboards rank one axis, task score, on someone els…
Benchmark contamination is when benchmark data leaks into a model's training data, so the model has effectively seen the test before taking…
There is no best LLM. There is only the best model for a specific job, measured on your task, through your harness, against your budget. So…
Yes, the harness affects LLM performance, and it affects it a lot. You do not ship a model. You ship a system: a prompt, an agent loop, tool…
Use a public benchmark to survey the field and shortlist models. Use a private eval to decide what you ship. A benchmark is a shared public…