TL;DR
A narrow software proof of concept, one question with one measurable threshold, costs 4,000 to 12,000 dollars and takes one to three weeks. Published guides quote 2,000 to 200,000 and higher, and that spread is not caused by complexity. It is caused by the word "POC" being attached to three different purchases: a feasibility spike, an investor demo, and a corporate pilot. Price the one you actually need and the range collapses.
The check that matters more than any published number: effort in person-weeks, multiplied by 40, multiplied by the blended hourly rate, has to equal the quoted price. Run that multiplication on the pricing tables in the top search results for this question and most of them do not reconcile. One of the highest-ranking guides publishes rows that come out 2.4 to 3.5 times off their own arithmetic. Thirty seconds with a calculator tells you more about a quote than any cost guide, this one included.
Key Takeaways
- A genuinely narrow proof of concept costs 4,000 to 12,000 dollars. Most published ranges are enterprise pilot prices wearing a startup label.
- The published spread exists because "POC" names three different purchases, not because software is unpredictable.
- Audit any quote with one multiplication: person-weeks x 40 x blended rate should equal the price. If it does not, ask which number is decorative.
- A proof of concept should never cost more than a third of the build it is protecting. Past that, buy the build.
- If your open question is whether people want it rather than whether it can be built, a proof of concept is the wrong instrument at any price.
How much does a proof of concept cost?
Three bands, sorted by what is being proven rather than by how complicated the software sounds.
| What you are buying | What it proves | Typical cost | Time |
|---|---|---|---|
| Feasibility spike | One technical question against one threshold: can this run at this accuracy, this speed, or this cost | 4,000 to 12,000 | 1 to 3 weeks |
| Demonstrable concept | The same question, plus a thin interface so somebody outside the engineering room can watch it work | 12,000 to 30,000 | 3 to 5 weeks |
| Corporate pilot | Feasibility plus security review, compliance artefacts, procurement sign off and a production-like environment | 40,000 to 200,000+ | 6 to 14 weeks |
Almost every large number you will read about proof of concept pricing belongs in that third row. Those guides are not wrong, they are written for a reader with a procurement department, an internal sponsor and a board to convince. Their advice about defending an estimate to a steering committee is sound for that reader and irrelevant if you are a founder deciding whether to spend money you raised yourself.
If you are pre-seed, the first row is your row. The second row earns its cost only when a specific named person needs to watch the thing work before releasing money.
Why every published price disagrees with the next
Search this question and you get 2,000 to 15,000 from one guide, 5,000 to 50,000 from another, 10,000 to 75,000 from a third, and 15,000 to 200,000 and up from the highest-ranking one. All four describe the same three letters. Three things drive that:
The word covers three purchases. A spike answering whether an extraction pipeline can hit 94 percent on your document set is not the same product as a pilot deployed into a bank's staging environment with an audit trail. Both get called a POC. Averaging them produces a range nobody can act on.
Agencies price the engagement they are set up to sell. A firm whose smallest sensible contract is 40,000 dollars will describe a 40,000 dollar proof of concept, and will describe it as small. It is small, for them.
Scope gets quoted before the question is written down. This is the expensive one and it is entirely avoidable. A proof of concept with a vague question has no natural end, so it gets priced by team size and duration rather than by the answer. Write one sentence stating what will be measured and what number counts as a pass, and the same work quotes lower everywhere you take it.
The thirty second check that tells you if a quote is real
Most cost guides hand you a range. Better to hand you a test you can run on any quote, including ours.
A proof of concept proposal usually gives three numbers: the effort, the rate, and the price. Those are not independent. Effort in person-weeks, times 40 hours, times the blended hourly rate, is the price. If a proposal states all three and they do not reconcile, one of them is decorative, and it is worth asking which.
Try it on the pricing table published by the guide currently ranking first for this question. Its own figures, row by row:
| Its stated scenario | Effort and rate it publishes | What that multiplies to | What it says the price is |
|---|---|---|---|
| Data-driven POC, one integration | 16 to 20 person-weeks at 95 to 135/hr | 60,800 to 108,000 | 25,000 to 40,000 |
| Integrated web app POC | 35 to 50 person-weeks at 95 to 145/hr | 133,000 to 290,000 | 45,000 to 85,000 |
| Regulated AI POC, 2 to 3 integrations | 55 to 80 person-weeks at 110 to 165/hr | 242,000 to 528,000 | 75,000 to 150,000 |
Every row states a price between 2.4 and 3.5 times below what its own effort and rate produce. Run it backwards and it is starker: at 95 dollars an hour, 25,000 dollars buys 263 hours, which is 6.6 person-weeks, not the 16 the same row claims.
That is not a typo in one table. It is the normal condition of published pricing in this category, and it matters to you for a practical reason. When you take that 25,000 dollar figure to a vendor and they quote 60,000, the vendor is not gouging you. The vendor is quoting the article's own arithmetic. You are negotiating against a number that was never real.
What to do with a quote that fails the check. Ask which of the three numbers is the firm one. Usually it is the price, and the effort figure was inflated to make the price look generous. Occasionally it is the effort, and the rate is a headline number nobody is actually billed. Either answer is workable. Not being able to answer is the signal.
Where the money actually goes
At the founder end of the market the money is almost entirely senior engineering hours, because the whole point is to put the most experienced person available against the hardest question for the shortest possible time. Cheap hours are false economy here. A junior engineer takes three weeks to prove what a senior proves in four days, and those three weeks cost more.
A typical one-question spike runs roughly like this:
- Days 1 to 2, framing and access. Turning the question into something measurable, getting credentials, sandbox accounts and a representative data sample. Unglamorous, and the single most common place a proof of concept loses a week.
- Days 3 to 7, the actual attempt. Building the narrowest thing that can produce a number. No interface, no auth, no error handling, nothing that will survive into the product.
- Days 8 to 10, measurement and write up. Running it against real inputs, recording what happened, and writing the answer down in a form somebody can act on.
Notice what is absent: design, QA cycles, DevOps, project management overhead. Add those and you are no longer buying a proof of concept, you are buying a small product. That substitution is the most expensive thing that happens in this category, and it usually happens without anyone deciding to do it.
The proof of concept service page breaks down the five factors that move a quote up or down, if you want to estimate your own before speaking to anyone.
The line items that are real but rarely quoted
None of these are large on their own. Together they are routinely 15 to 25 percent on top of an engineering estimate, and they are why a fixed quote that looked generous ends in a change request.
- Data access. Buying, cleaning or labelling a sample so the test means anything. If the answer depends on your data and that data does not exist in usable form yet, that work happens first and it is real work.
- Third party API costs during testing. Model inference, mapping calls, enrichment lookups. Small per call, and a proof of concept makes an unusual number of calls in a short window.
- Waiting. Sandbox credentials from an enterprise partner, a security questionnaire, a legal review of a data sharing agreement. Nobody bills you for waiting, and it still costs you two weeks of runway.
- Your own time. The founder hours spent answering questions, sourcing data and making decisions. Consistently underestimated, and the difference between a two week spike and a five week one is almost always decision latency rather than engineering difficulty.
Proof of concept cost versus MVP cost
This comparison decides the purchase more often than any feature list, and it is the one most cost guides skip because it can talk you out of the engagement they are selling.
| Feasibility spike | MVP | |
|---|---|---|
| Question it answers | Can this be built | Does anybody want it |
| Typical cost | 4,000 to 12,000 | See the full MVP cost breakdown |
| Time | 1 to 3 weeks | 3 to 4 weeks with us |
| What you own afterwards | An answer, and code that is usually discarded | A working product, in front of real users |
| Can it raise money | Rarely on its own | Yes, this is what traction is made of |
The uncomfortable arithmetic for anyone quoting enterprise POC prices to founders: if a "small" proof of concept is quoted at 15,000 to 35,000 dollars, it costs about what a finished first version of the product costs. At that price you are paying MVP money for something that cannot acquire a user, cannot generate revenue and cannot be shown to an investor as traction. For the difference in purpose rather than in price, MVP vs POC covers it properly.
The rule we hold to: a proof of concept should never cost more than a third of the build it is protecting. Past that it has stopped being a test and become the first phase of the thing you were trying to de-risk. Our cost calculator gives you a build range in three minutes, which gives you the ceiling for any proof of concept quote in front of you.
When a proof of concept is the wrong purchase at any price
A proof of concept removes technical risk. If technical risk is not what is keeping you awake, no price makes it a good buy.
Signs you are about to spend money on the wrong instrument:
- Your real doubt is demand. You are confident it can be built, you are unsure anybody wants it. That is an idea validation problem, and the cheapest answers are a landing page, a concierge test or a pre-sale from the types of MVP, most of which cost a fraction of any engineering engagement.
- You want something to show investors. A proof of concept is an internal artefact with no interface. It makes a poor demo. A tightly scoped MVP is a better demo and a better company at the same money.
- The hard part is not actually hard. Standard CRUD, a common payment integration, an off the shelf auth flow. If a competent engineer can tell you the answer in a conversation, buy the conversation.
- You cannot name the number that counts as a pass. Without a threshold there is no finish line, and an engagement without a finish line gets priced by the week indefinitely.
If you are unsure which of these you are in, product discovery vs MVP works through the same decision from the other direction.
When it is worth every penny
The cases where a proof of concept is the best money at the whole pre-build stage share a shape: a single technical assumption that everything else rests on, where being wrong is discovered late and expensively.
- An accuracy threshold your product's value depends on. If extraction has to hit 95 percent to be useful and it tops out at 78, that is worth knowing in week two rather than month five.
- A latency, throughput or unit-cost ceiling. Especially with model inference, where something that works beautifully on ten records can be commercially impossible on ten million.
- A legacy or regulated system you have been told you can integrate with, by somebody who has not tried.
- An architecture choice that is expensive to reverse once the product is built on top of it.
In every one of those, the spike is cheap relative to what it protects, and the answer arrives while changing course is still free.
How to buy one so it cannot overrun
These five terms separate a proof of concept that ends from one that quietly becomes a project. Ask for all of them.
- One written question with one threshold. A single sentence: what is measured, and what number is a pass. If the proposal cannot state this, the scope does not exist yet, and no price attached to it means anything.
- A fixed quote against fixed scope, agreed before anything starts. This is how we work, and it is the term that makes the rest enforceable.
- A stated end date, with the answer as the deliverable. Not a demo, not a report about progress. The answer, written down, with the evidence behind it.
- A named senior engineer. You are buying judgment, not headcount. Find out who is actually doing the work.
- Explicit ownership of the code and the findings. Even for work you expect to discard, the measurements are yours and they are the durable asset.
A firm that pushes back on the first point is telling you something useful before you have spent anything.
What we charge, and why we scope it that way
We price proof of concept work as a fixed quote against a fixed scope, agreed before anything starts, so it cannot quietly become a project. The engagement is deliberately narrow: one question, one threshold, a senior engineer, and a written answer at the end.
We hold to the one-third rule even when it costs us the engagement. If a spike would run close to a third of the build it is meant to protect, we will say so and tell you to put the money into the product, because at that point the product is the cheaper instrument and it is the one that can raise money. Founders who ship with us go from idea to a funding-ready MVP in three to four weeks, and the best proof of concept is the one that gets you there faster rather than the one that adds a phase in front of it.
A scoping call costs nothing and will usually tell you within the hour whether you need this engagement at all.
Related guides
- MVP vs POC: which risk each one removes, and why they are not interchangeable
- How much does it cost to build an MVP: the full build breakdown
- MVP vs prototype: where a clickable prototype fits and what it proves
- Product discovery vs MVP: whether to research first or build first
- Types of MVP: the cheaper validation methods, from landing page to concierge
- MVP scope: cutting a first version down to one flow
Frequently asked questions
How much does a proof of concept cost?
A narrow software proof of concept, one question against one measurable threshold, costs 4,000 to 12,000 dollars and takes one to three weeks. Adding a thin interface so it can be demonstrated to somebody outside engineering takes it to 12,000 to 30,000. Corporate pilots with security review, compliance artefacts and procurement sign off run 40,000 to 200,000 and higher, and those are the numbers that dominate published ranges even though they describe a completely different purchase.
Why do published proof of concept prices vary so much?
Because the term covers three different products. A feasibility spike, an investor-facing demo and an enterprise pilot are all called a POC, and averaging them produces a range spanning two orders of magnitude. The second reason is that agencies describe the smallest engagement they are set up to sell, which for a large consultancy is genuinely large. Neither is dishonest, and neither is useful to a founder without knowing which of the three is being priced.
How do I check whether a proof of concept quote is realistic?
Multiply the effort by 40 and by the blended hourly rate, then compare it to the quoted price. Those three numbers are not independent, so they should reconcile. When they do not, ask which one is firm. Most published pricing tables in this category fail this check by a factor of two to three, so a quote that comes back higher than an article led you to expect is often the honest one.
Is a proof of concept cheaper than an MVP?
A properly narrow one, yes, by a wide margin, because it skips everything that makes software a product: the interface, real data handling, security, error states and polish. A proof of concept priced at 15,000 to 35,000 is not cheaper than an MVP in any meaningful sense, and it leaves you with an answer instead of a product. If a quote reaches that territory, compare it directly against a build before signing.
Can a proof of concept cost less than 5,000 dollars?
Yes, when the question is genuinely singular and the data already exists in usable form. A few days of senior engineering against one threshold is a real engagement and it is the most efficient money at this stage. Below roughly 3,000 you are usually buying either a script somebody could write themselves or an engagement too shallow to produce a trustworthy answer.
How much does an AI proof of concept cost?
The engineering is not necessarily more expensive, but two other things often are. Data preparation, because accuracy questions need a representative labelled sample and one rarely exists on day one. And inference costs during evaluation, which are small per call and add up quickly when a test runs thousands of calls in a fortnight. Budget for both explicitly rather than letting them arrive as a change request.
Does a shorter deadline make a proof of concept more expensive?
Yes, and by more than people expect, because compression is bought with seniority rather than with headcount. Adding people to a two week feasibility question mostly adds coordination. The honest version of a rush quote is a higher rate for a smaller, more experienced team, not the same team working weekends.
What should a proof of concept quote include?
One written question with a numeric pass threshold, a fixed price against a fixed scope agreed before work begins, a stated end date with the answer as the deliverable, the name of the senior engineer doing the work, and explicit ownership of the code and findings. A proposal missing the first item cannot be priced meaningfully, whatever number is on it.
Is it cheaper to outsource a proof of concept than to build it in house?
Usually, and not for the reason people assume. The saving is not the hourly rate, it is that you are not hiring for a question you may only ask once. Bringing on a specialist engineer to answer one feasibility question and then having no further use for that specialism is the expensive path, especially when the answer turns out to be no.
What is the most common way a proof of concept budget gets wasted?
Scope drifting from a question into a product. It starts with a reasonable request for a simple interface so it can be shown to somebody, then error handling so the demo does not break, then auth so it can be shared. Each step is small and defensible, and the result is a fragile half product that cost MVP money and answered nothing. The written question with a threshold is what prevents it.
