Posts tagged prompting

1 post about prompting.

• GPT-5.6 Prompting Guide: Two Defaults That Bill 1.5x and 10x More

  July 21, 2026 · gpt-5.6 · prompting · prompt-cache · reasoning

  GPT-5.6 defaults are expensive: omitting reasoning_effort bills 1.5x vs 'none'; unmarked prefixes cost 10x cached reads. Request-shape playbook, measured.