Prompt Engineering Services for Your Business
Prompt engineering services at Omeiro produce system prompts that behave the same way on day 100 as on day one. We structure instructions with XML tags, add few-shot example libraries, separate user input from instructions with delimiters and write defences against prompt injection.
How prompt engineering works, step by step
A made-up example of one run, from start to finish. Each step is logged so you can see what happened.
- Something happens
A form, an email, a payment or a new row.
- The workflow runs
Steps you agreed, in the right order.
- Errors are caught
Failed steps retry or alert a person.
- You see what ran
A simple log of every run.
Sample Made-up names, data and steps to show how a run is logged. Your steps, tools and rules follow your business.
What you get with prompt engineering
Hardened system prompt engineering featuring XML tag structure, few-shot demonstration libraries, delimiter sandboxing, and adversarial prompt injection defenses.
Basic Package
1 hardened system prompt with XML structure; 5 examples. 2-day delivery, 1 round + 30-day fixes.
Standard Package
Up to 3 prompts, few-shot library, injection defenses, test cases. 4-day delivery, 1 round + 30-day fixes.
Premium Package
Up to 8 prompts, red-team report, versioning guide, 30 days revisions. 7-day delivery, 1 round + 60-day fixes.
Clear brief first
We confirm what you need before work starts, so the scope is clear on both sides.
Revisions listed
Each package shows its revision rounds. A round is one list of changes sent together.
Yours once paid
Copyright of the final work passes to you once the order is paid in full.
Third-party tools, API usage and hosting are billed to your own accounts, so the setup stays with your business.
How our prompt engineering works
Collect the brief
We gather the task, tone, limits and examples of good and bad answers.
Draft with structure
Instructions are organised with tags, delimiters and examples.
Attack it
We try to break the prompt with injection and off-topic input.
Hand over with tests
You receive the prompt, test cases and, on higher tiers, a report.
Why choose Omeiro for prompt engineering
You also receive test cases, so a later edit can be checked rather than guessed.
In short
- Delivery in 2 to 7 days, by package.
- Fixed price, shown before you order.
- Product teams whose assistant ignores its rules when users push back.
- Copyright yours after full payment.
Prompt Engineering: common questions
How much does prompt engineering cost?
Prices are fixed and shown by package on our Prompt Engineering pricing page, so you see the full price before you order. You can also ask for a custom quote.
How long does enterprise prompt engineering take?
Delivery depends on the package: Basic 2-day delivery; Standard 4-day delivery; Premium 7-day delivery.
What is included in the Basic Package?
The Basic Package includes: 1 hardened system prompt with XML structure; 5 examples. Higher packages add more scope, revisions and support.
Can I get a custom system prompt design package?
Yes. If none of the packages fits, use the custom package form on our pricing page to describe what you need, and our team sends you a fixed price.
Can a prompt fully prevent prompt injection?
No prompt can promise that. Defences reduce the risk, and the red-team report on Premium shows where weak spots remain.
Which models do you write for?
Tell us your model before ordering, as styles differ.
What are few-shot examples?
Short sample inputs and ideal outputs that show the model the pattern to follow.
Will you update the prompt later?
Premium includes 30 days of revisions.
Who owns the final work?
Copyright of the final work passes to you once the order is paid in full. Paid fonts, stock files or licences, if used, are licensed in your name.
Ready to start your prompt engineering?
Compare the packages and pick the one that fits. Not sure which? Write to us and we will help you choose.