LLM API guides. Spend less, ship more.
Short, practical guides to what LLM APIs cost and how to pay less, with prices that update live.
- How much does Claude Code cost on the API?What Claude Code costs on the API: the four kinds of tokens it bills, a worked monthly example on Opus, Sonnet and Haiku, and how to spend less.
- Prompt caching explained: how it cuts LLM API billsHow prompt caching works, what cached tokens cost on Claude, GPT, Gemini and DeepSeek, how to structure prompts to hit the cache, and how to check it worked.
- How to cut your LLM API bill: seven ways that workSeven ways to spend less on LLM APIs: the right model tier, prompt caching, capped output, less context, routing, fewer retries and a lower price per token.
- What is an OpenAI-compatible API? How to switch providers in one lineWhat an OpenAI-compatible API is, how to point the OpenAI SDK at another provider by changing the base URL, and what to check before you switch.
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