Posts tagged prompting

2 posts about prompting.

• GPT-6 Luna vs GPT-5.6 Luna: Half the Price, Half the Words

  October 3, 2026 · gpt-6 · api-pricing · prompting · reasoning

  GPT-6 Luna wrote 0.55x the words of GPT-5.6 Luna on goal-only prompts, matched it with the parts named (74 vs 69 of 80), and cost $0.81 vs $1.61 per 1,000.

• 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.