How do I generate ad copy in bulk?

Put your products, keywords or campaigns in a spreadsheet (one per row), describe your ad rules once in the prompt — format, character limits, tone — choose an AI model, and run the batch job. PromptMax writes copy for every row and returns a completed spreadsheet.

How much does it cost?

Pay as you go — you are charged only for what you process, at roughly 25% below standard API pricing because we pass on the batch discount. New accounts start with free credit and no card is required.

Bulk ad copy generator

Ad copy for
every campaign, in one run

Q: Is it suitable for agencies?

Yes. Generate copy for many clients, products or campaigns in a single run, with consistent rules applied to every row. There are no per-seat fees — you pay only for what you process.

Stop writing ads one at a time. Drop your products, keywords or campaigns into a spreadsheet, write your ad rules once, and PromptMax writes headlines and descriptions for every row — using the AI model you choose.

Get started free →

No code · Built for agency scale · Start with free credit, no card needed

Who it's for

If you write the same ad a hundred times over

When every product, keyword or client needs its own copy, writing ads one at a time doesn't scale. PromptMax is for the people running campaigns at volume.

PPC agencies

Generate copy for many clients and campaigns in one run, with each brand's rules applied consistently.

In-house performance teams

Spin up headlines and descriptions for a whole product range or keyword list without the copy bottleneck.

E-commerce advertisers

Turn your product feed into ad copy for every SKU — ready to import into Google Ads or Meta.

The difference

From a keyword list to ready-to-paste ads

You write the ad rules once — format, character limits, tone — and they're applied to every row. A few real examples:

Your spreadsheet → AI responses (appended)

Row in your file	Headlines (out)	Description (out)
Noise-cancelling running headphones · runners 25–40 · free 30-day returns	Run to Your Own Soundtrack · Noise-Cancelling for Runners · Free 30-Day Returns	Block out the world and lock into your pace. Sweat-proof, secure-fit headphones with active noise cancelling — try them free for 30 days.
Waterproof hiking boots · day-hikers · lifetime warranty	Dry Feet, Every Trail · Hiking Boots Built to Last · Backed for Life	Keep going when the trail turns wet. Waterproof, grippy hiking boots with a lifetime warranty — comfortable from the first step.
Project management software · small teams · free 14-day trial	Your Team, Finally in Sync · PM Software for Small Teams · Try Free for 14 Days	Stop chasing updates across five tools. Plan, track and ship in one place — free for 14 days, no card needed.

Your output keeps every original column, with the ad copy added. (Sample illustration — run your own list free on the first 10 rows.)

Why not just…

The alternatives, and where they break

By hand, or one ChatGPT chat at a time

One ad set at a time — hours across many campaigns
Tone and format drift between clients
Character limits blown, manual re-edits
Starts from scratch for every new launch

PromptMax

Every product, keyword or campaign in one run
Your rules and limits applied to every row
A spreadsheet ready to import to Google Ads or Meta
Re-run for the next client or launch in minutes

How it works

Three steps, no code

Upload your list

Put your products, keywords or campaigns in a spreadsheet — one per row, with any context columns you have.

Write your ad rules once

Describe the format, character limits and tone in plain language. It is applied to every row consistently.

Run the batch job

Pick a model, test the first 10 rows free, then run the file. Download a spreadsheet with copy for every row.

Why PromptMax

Built for ad copy at scale

One brief, every ad

Apply the same rules across 50 ads or 5,000 — consistent tone and format, without rewriting the brief each time.

14 models to choose from

Gemini, Claude, GPT and Grok in one place. Test the first 10 rows free and compare before you commit.

No per-seat fees

Pay only for what you process, at roughly 25% below standard API pricing. Ideal for agencies running many clients.

Your data stays private

Your files are isolated to your account, never shared with other users, and never used to train AI models.

Questions

Good to know

What does my spreadsheet need to contain?

One row per product, keyword or campaign. Add any context you have — audience, offer, tone, brand. Your prompt decides what the model uses.

Can it follow ad character limits?

Yes. State the limits in your prompt (for example 30-character headlines and 90-character descriptions) and the model follows them. Test the first 10 rows free to confirm.

Is it suitable for agencies?

Yes — generate copy for many clients, products or campaigns in a single run, with consistent rules applied to every row. No per-seat fees; you pay only for what you process.

How is pricing calculated?

Pay as you go, based on what you process, at roughly 25% below standard API pricing. New accounts start with free credit and no card is required.

Related guide

Running ads for clients? Read How agencies generate PPC ad copy at scale with AI.

Write every ad in one run

Set your ad rules once. Let PromptMax handle every campaign.