write-email · gemini-1-5-pro · communication · 90% confidence
Write an email with Gemini 1.5 Pro — optimized prompt
A Gemini 1.5 Pro email prompt: structured inputs, two variants (direct and warm) with a subject line each, under a stated word count, no filler.
90% confidenceUpdated 9/7/2026write-email · gemini-1-5-pro · communication
Original prompt
Gemini, write an email to a client about a project delay.
Optimized prompt
Draft this email in two versions so I can pick a register. === INPUTS === Reader: [who, relationship, history] Goal: [the one outcome you want] Facts to include: - [bullet] - [bullet] Word cap: [e.g. 130 words each] === OUTPUT === ## Version A — direct Subject: ... Body: ... ## Version B — warm Subject: ... Body: ... One line at the end: when to pick A vs B. No sign-off block, no notes beyond that line. Mark missing facts as [NEEDS: ...].
Why this Gemini 1.5 Pro prompt works
Tuned for Gemini 1.5 Pro: structured inputs and two variants — direct and warm — each with its own subject line, under a stated word cap. Two register options plus a pick-one guide turns Gemini’s verbosity into a useful choice.
What to check in the output
- The 'optimized_prompt' explicitly defines a chain-of-thought process.
- The 'optimized_prompt' clearly delineates sub-tasks for the AI.
- The 'optimized_prompt' specifies evaluation criteria for the AI's internal refinement step.