Guides

Pick the right LLM for each workload type.

• How to pick an LLM for a customer chatbot in 2026

  Short framework: pick cheapest mini model, measure quality, escalate only if needed. Real pricing math included.

• How to pick an LLM for a coding agent

  Claude Opus 4.7 vs GPT-5 vs Gemini 2.5 Pro on coding tasks. When o3 beats them all, and when a cheap Haiku tier suffices.

• How to pick an LLM for RAG search

  RAG answers don't need a frontier model. How to pick the right tier for your retrieval quality.

• How to estimate an LLM API budget before you build

  A 10-minute framework to sanity-check your LLM bill before writing any code. Inputs you need, mistakes to avoid.