Promptline is a reference for people who use AI tools every day.

Each page answers one practical question: which prompt gets a certain image or video out of a given model, what an error message in ChatGPT or Midjourney actually means, how much a plan lets you use, and what changed for users after an update.

What you will find here

  • Prompt library. One page per prompt, filtered by model (Gemini and Nano Banana, ChatGPT Images, Midjourney, Veo, ChatGPT, Claude and others) and by task. Every listing names its source: an official example from the vendor or a post by a named community author, linked.
  • Fixes. One page per error message, with what the vendor says about it and the steps that are worth trying in order.
  • Limits. Plan-by-plan usage limits, prices and reset windows for ChatGPT, Claude, Gemini and Midjourney, condensed from the vendors’ own pages and dated with the day we last checked them.
  • Image and video guides. How specific models take prompts and parameters, drawn from their documentation.
  • News. What an update changes for people using the product, trending prompt formats with the original post embedded, and techniques shared by the community, credited to their authors.
  • Tools such as the token counter.

How we work

Product facts, such as limits, prices, features and error meanings, come from the vendor’s help center, documentation, release notes or official blog, and the source is linked next to the claim. When a vendor does not publish a figure, we do not estimate one. Prompts shared on X, Reddit or elsewhere are quoted briefly and credited to the person who posted them, with a link to the original; we report what the author says the prompt does. The full rules are in our editorial policy.

Promptline does not publish jailbreaks, ways around a model’s policies, or ways to get paid plans without paying for them.

Independence

Promptline is not affiliated with OpenAI, Anthropic, Google, Midjourney or any other AI company. Product names belong to their owners. Paid placements are possible and are always marked Sponsored; see Advertise.

Contact

Corrections, tips and questions go through the contact page.