BAB Prompt Framework: Before, After, Bridge

Study guide

BAB Prompt Framework: Before, After, Bridge

BAB stands for Before, After, Bridge. It began as a copywriting formula and works here as a prompt framework, which means you write the three moves into your prompt so the AI produces persuasive text in the right order. The formula mirrors how people decide. We recognise a problem, picture a better state, then look for a way there. A prompt written in that order produces writing that follows the reader's own thinking instead of pushing a product.

This course is for busy professionals who write landing pages, pitches, outreach emails, internal proposals or grant applications and want the AI to sound like them. You will learn how to gather the reader's real words for the Before block, how to describe a believable solved day for the After, and how to present your offer as the route between the two. BAB works best nested inside a bigger framework. Inside CO-STAR, for example, the outer framework supplies context, style, tone, audience and format, while BAB fills the Objective with the three persuasive moves.

What is a prompt framework?

A prompt is the request you type into an AI tool such as ChatGPT, Claude or Gemini. A prompt framework is a reusable structure for that request: a short checklist of the parts a good prompt contains, usually named with an acronym so it is easy to remember. Why it helps: the AI fills in whatever you leave out with generic guesses. A framework makes sure you include the parts that change the answer, such as who it is for, what you want to achieve and the format you need.

Frameworks make prompts repeatable: you fill the same parts each time, save the prompt as a template and share it with colleagues. They are not magic words: the value comes from the detail you put in each part. They help most when a request is complex or open to interpretation; a quick, simple question can stay short. There are well over sixty named frameworks, and most of them remix the same ingredients: role, task, context, audience, format, constraints and examples.

In this course you learn BAB, which is a fill-in-the-slots framework: an acronym where each letter stands for one part of your prompt. It is best for: landing pages, pitches, outreach and any text that has to persuade.

Persuasion in three moves

BAB has three parts. Before describes where the reader is now. After describes where they want to be. Bridge describes how they get there. When you use it as a prompt framework, you write those three moves into your prompt so the AI produces persuasive text in that order rather than a generic list of features. The order matters because it follows the reader's own thinking. We recognise a problem, picture a better state, then look for a way there.

The Before block describes the reader's situation, not your product. If the reader does not recognise themselves in the Before block, the rest of the message has nothing to stand on. The After block describes the reader's solved day in concrete terms. The Bridge presents your product, service or idea as the path between the two. A common mistake is filling the blocks with adjectives rather than facts or feelings. Each block should contain something the reader recognises. Decoration does not persuade.

BAB works best nested inside a bigger framework. Inside CO-STAR, for example, the outer framework supplies context, style, tone, audience and format, while BAB fills the Objective with the three persuasive moves. BAB is not right for every task. When you simply need information, a plain instruction works better. Use BAB when the goal is to move a reader from one state to another.

Before: the reader's situation

Before is the first move of BAB and its only job is to make the reader feel recognised. It describes their current situation, not your product and not your opinion about their problem. The AI cannot know your customers' phrases because it has never seen your calls, reviews or tickets. You must supply the real phrases in the prompt, and tell the AI not to invent new ones.

Specific beats general every time. A line like you spend Sunday evenings on invoices names a moment, a task and a cost, while admin is hard names nothing the reader can picture. Good sources of customer language are call recordings, public reviews and support tickets. Copy the sentences exactly, including the rough edges, because the rough edges are what make them sound human.

A useful test is to read your Before lines aloud and ask whether a real customer would say them. If the lines could fit any business in your industry, they are too generic to work. Keep the Before block short. One or two lines that land are worth more than a paragraph that drifts.

After: the better state

The After section describes the reader's situation once the problem is solved. It should be specific enough that the reader can picture a real moment in their week, not a vague feeling. A benefit is what changes in the reader's day. A feature is what the product includes. The AI will default to features unless you explicitly ask for benefits and give examples.

Overpromising means claiming a result you cannot prove. It breaks trust quickly. Tell the AI which claims you can back up and which ones are off limits before it writes. A believable After often follows a small sequence: current frustration, the moment the problem is solved, the daily changes, and the quiet confidence that follows. This keeps the picture grounded.

The prompt should name the reader, the solved situation, the concrete changes, the allowed claims, and the tone. That combination gives the AI enough to write an After that sounds like you and stays honest. You can reuse the same After structure across sales pages, internal proposals, and emails. The reader changes, but the shape of a believable solved day stays the same.

Bridge: how you get them there

The Bridge is the middle move of BAB. It presents your product, service or idea as the route from the reader's Before to their After. Keep the focus on the route, not on how impressive your offer is. Proof makes the Bridge believable. Use a number, a testimonial or a guarantee. Choose the type that matches your claim. A single specific piece of proof is stronger than several vague claims.

End with one clear next step. A small, specific action such as a short call or a single reply is easy to accept. A menu of options creates hesitation and lowers response rates. A common mistake is treating the Bridge as the hero of the message. The reader is the hero. Your offer is the vehicle. When you centre the offer, the message reads like a pitch instead of a path.

In a prompt, give the AI separate slots for Before, After, Bridge, proof and next step. Separate slots stop the model from blending the stages and keep the logic of BAB intact. The Bridge works in internal messages too. A manager can present a new process as the path from a current pain to a better state, add one piece of evidence, and ask for one decision.

BAB for internal persuasion

Internal persuasion uses the same three moves as sales. The Before is how things work now, the After is the better state you want, and the Bridge is what it takes to get there. Change proposals, fundraising, grant applications and project pitches all follow the BAB shape because each one asks a reader to give money, time or approval.

Telling the AI the audience's objections is what makes the Bridge credible. The AI can then answer cost, training or risk concerns directly instead of avoiding them. The AI does not know your workplace, so you supply the facts. Give it the audience, the current situation, the desired outcome, the plan and the objections in the prompt itself.

A strong Bridge names the first concrete step, such as a pilot or a staged rollout, so the reader can picture saying yes without committing to everything at once. Always edit the AI draft before sending. Check the numbers, the names and the tone, because the proposal carries your name and your credibility.

BAB in your job

Rewrite and compare is the fastest way to learn BAB. Put the original and the new version side by side and check which one names the reader's situation sooner. A Before angle is the specific slice of the reader's situation you lead with, such as budget pressure, time cost or capacity risk. Three versions with three angles give you a real test.

BAB sits beside AIDA and PAS. Before maps to problem and attention, After maps to desire, and Bridge maps to solution and action. The Bridge must contain a concrete step. A promise with no next action leaves the reader with nothing to do.

In an AI prompt, give the audience first so the model writes to a real person, then fill Before, After and Bridge with your own words rather than labels. Test with a small group before you commit. Send each version to a few readers and compare which one gets replies.

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