PhonePe

Predict the new memory footprint after swapping 768-dim embeddings for 3072-dim on a 50M-vector HNSW index.

Replies tripled in length after RLHF with flat quality: pick the likely cause

Compute the KL shaped reward this PPO rollout actually optimizes

Lay out the audio front end for transcribing hour long sales calls at scale

Design eval infrastructure that makes a weekly model swap boring

Pick the best 2026 stack for a self-hosted on prem healthcare deployment

Match each retriever evaluation metric to what it actually measures

Select every metric that belongs on a mature LLM cost dashboard

Select the metrics that actually measure context quality, not just generation quality

Pick the axes that should drive an LLM observability vendor selection