AI prompt library

Copy-ready prompts for image, video and text models, one per page, each with its source.

83 listings

Claude prompt to optimize Python code performance

An official Anthropic example system prompt that asks Claude to suggest performance optimizations for Python code.

Model
Claude
Task
Coding
What it produces
Asks Claude, as a system prompt, to review Python code and suggest performance optimizations with explanations.
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Gemini prompt for a colorful 3D dog icon

An official Google example prompt for a cute dog icon in a colorful, tactile 3D style on a white background.

Model
Gemini / Nano Banana
Task
Logo and design
What it produces
Asks for a cute dog icon in a colorful, tactile 3D style on a white background with no text.
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Gemini prompt for a minimalist coffee shop logo

An official Google example prompt for a minimalist black-and-white logo for a coffee shop called The Daily Grind.

Model
Gemini / Nano Banana
Task
Logo and design
What it produces
Asks for a minimalist black-and-white logo for a coffee shop called The Daily Grind with a coffee bean icon.
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Gemini prompt for a noir comic book panel

An official Google example prompt for a single noir comic panel with a detective and a caption box.

Model
Gemini / Nano Banana
Task
Logo and design
What it produces
Asks for a single landscape noir comic panel with a detective, a rainy street and a caption box.
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Sources: each prompt is quoted from the official example or the public post linked on its page. Promptline is not affiliated with OpenAI, Anthropic, Google or Midjourney.

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