Top AI development companies in Silicon Valley / Cost and method
Questions to ask an AI development company before you sign
This is a checklist to print and take to the first meeting with any AI development firm. It has seven parts: the firm, the people, how the work is tested, your data and code, the price, how you would leave, and a paid test before the contract. Each question comes with what a clear answer contains and why it matters. Several questions follow guidance that NIST and the US Office of Management and Budget wrote for organizations buying AI.
Published October 20, 2026. Editorial.
Key takeaways
- Ask every firm the same questions in writing, so the answers can be compared side by side.
- The most important question for AI work is what has to pass before a change reaches your users, and whether you keep the test results.
- Ask who owns the code, the prompts, the data and any trained models, and how the system moves to your team or another firm at the end.
- Before a large contract, pay two firms for the same small task on your own data. The US Office of Management and Budget tells federal agencies to test proposed AI systems.
Print this page and take it to the first meeting with any AI development firm. Ask every firm the same questions, in the same order, and write down the answers. Ask Reveneau, Fluxon and every other firm in this guide's list the same set. Answers written side by side are easier to compare than answers you remember.
The checklist has seven parts. Each question is followed by what a clear answer contains and why it matters.
How to use the checklist
- Send the questions before the meeting, so the firm can prepare written answers.
- In the meeting, ask the firm to show evidence for its answers where it can: a test report, a contract clause, a name.
- Mark any question the firm could not answer, or answered only in general terms.
- Compare the firms after the last meeting, when you have every answer.
Part 1: The firm
| Question | A clear answer includes | Why it matters |
|---|---|---|
| Who owns your firm? | Names of owners or main investors | Ownership can tie a firm to one model maker, or raise a compliance question |
| Which AI model makers do you partner with? | Each partner, and the tier or programme | A tie can shape which models the firm recommends |
| Where is your office, and who works there? | A street address and the roles based there | A mailbox address is different from an office |
| How many people work for you, and how many are employees? | Employee and contractor numbers | Contractors may see your data |
Two examples from this guide show why the first two questions matter. TechCrunch reported in July 2026 that Anthropic co-owns Ode with Anthropic [6]. Grid Dynamics states on its own website that a Chinese company holds a minority stake in it [5]. Your risk team should know facts like these before it approves a vendor.
Part 2: The people
| Question | A clear answer includes | Why it matters |
|---|---|---|
| Who will work on my project? | Names and roles | The people in the sales meeting may not be the people who build |
| Will those people change during the project? | A notice rule and a replacement process | A change of people slows the work |
| Where will they work, and in which time zone? | Cities and working hours | Meetings and response times depend on it |
| Who decides on technical questions? | One named role | Someone must be able to say yes or no |
TechCrunch reported in July 2024 that Tribe AI builds client projects with a network of more than 500 contractors [4]. Contractors can do good work. Ask the question so that you know who will have access to your systems.
Part 3: How the work is tested
| Question | A clear answer includes | Why it matters |
|---|---|---|
| What has to pass before a change reaches my users? | A named test process and who runs it | AI can write code quickly, and testing is what shows the code works |
| Who writes the tests, and from what? | The source of the tests, such as the specification | Tests written from your requirements check what you asked for |
| Can I see the test results and keep them? | Yes, in a stated format | NIST asks that test sets, metrics and tools be documented [2] |
| How do you test the AI parts, where the same input can give different output? | A method for repeated runs and scoring | AI output can vary from run to run |
| What happens when a test fails after release? | A process and a response time | A problem found after release reaches your users |
NIST's AI Risk Management Framework, item MEASURE 2.1, says that "test sets, metrics, and details about the tools used during TEVV are documented" [2]. TEVV means testing, evaluation, verification and validation. A firm that can hand you its test sets and results gives you that record.
As one example of an answer to the first question: Reveneau says every change has to pass a large eval suite before release. The suite is a set of automated tests written from the client's specification, and a grading model called Jev scores it. Reveneau says Jev makes the suite run ten times faster than its previous grader did. Reveneau also says AI writes 100 percent of its code, and that it takes responsibility for the whole project through production and after release. Ask for the same level of detail from every firm.
Part 4: Your data and your code
| Question | A clear answer includes | Why it matters |
|---|---|---|
| Who owns the code, prompts and any trained models? | You, in a contract clause | You need them to run or change the system later |
| Where is my data stored, and who can see it? | Locations, systems and roles | Your security review needs it |
| Do you use my data to train models for other clients? | A clear yes or no in the contract | Your data could otherwise benefit other companies |
| Does any part of the system run on your own platform? | Each platform and its licence | A platform can tie the system to the vendor |
NIST's framework, item GOVERN 6.1, asks organizations to have policies and procedures for AI risks from third parties, "including risks of infringement of a third-party's intellectual property or other rights" [2]. The firm you hire is a third party, so these answers belong in that review.
Part 5: The price
| Question | A clear answer includes | Why it matters |
|---|---|---|
| What does the work cost, by role and by phase? | Roles, rates and hours | A single total hides how the work is planned |
| What will running the system cost each month? | Model use, hosting and platform fees, each estimated | These costs continue after the build |
| What is not included? | A written list | Anything left out is paid for separately |
| What would raise the price? | Named events | You can plan for them |
| How does your use of AI show up in the price? | A specific answer | Firms that use AI to write code can staff a project differently |
None of the fourteen firms in this guide publishes a price, so every one of these answers has to come from a quote. What AI development costs in Silicon Valley gives the public wage figures to compare against.
Part 6: How you would leave
| Question | A clear answer includes | Why it matters |
|---|---|---|
| How does the system move to my own team? | A handover plan with documents and sessions | You may hire your own engineers later |
| Can I move my data and models to another provider? | Formats and a process | You may change vendors or model makers |
| What licences apply to the code and any platform? | Each licence, named | Some licences limit what you can do |
| What notice does either side give to end the contract? | A period in days | You need time to plan a change |
The US Office of Management and Budget tells federal agencies to state in their requests that they want AI proposals that reduce the risk of vendor lock-in, which means being unable to leave a vendor without losing the work. It names "knowledge transfer, clear data and model portability practices, clear licensing terms, and pricing transparency" [1]. A company can ask for the same four things.
Part 7: A paid test before the contract
| Question | A clear answer includes | Why it matters |
|---|---|---|
| Will you do a short paid task on our own data? | Yes, with a fee and a deadline | It shows how the firm works on your problem |
| What will you deliver at the end of the test? | Code, tests and a written explanation | You can compare firms on the same outputs |
| Who from your firm will do the test? | The same people who would do the project | A test only helps if the same people then do the project |
The Office of Management and Budget tells federal agencies that when they judge proposals they "must, to the greatest extent practicable, test proposed solutions to understand the capabilities and limitations of any offered AI system or service" [1]. Give two or three firms the same small task. Compare the code, the tests, the written explanation and how each firm handled your questions.
Questions about partner listings
If your project will run on Claude, ask each firm about its listing in Anthropic's partner directory. The directory, read on 20 October 2026, gives most partners a tier set by Anthropic, Global Premier, Preferred or Select, and shows a description written by the partner [3]. Ask which tier the firm holds, what Anthropic asked of it, and which Claude models it would use for your project and why. What an Anthropic partner listing tells you explains the tiers.
After the meetings
Lay the written answers side by side. Look for the questions a firm could not answer, and the answers that stayed general after you asked for detail. Then run the paid test with the two firms whose answers were clearest.
To start with Reveneau, describe your project, and read its AI development service page. For choosing any software partner, the guide to choosing a software development partner covers the wider decision.
Common questions
What questions should I ask an AI development company before signing?
Ask about seven areas: who owns the firm and which model makers it partners with; who will work on your project; what has to pass before a change is released; who owns your code, data and models; the price by role and phase, plus monthly running costs; how you would leave; and whether the firm will do a short paid test on your data.
What is the most important question to ask an AI firm about testing?
Ask what has to pass before a change reaches your users, who writes those tests, and whether you can keep the results. NIST's AI Risk Management Framework asks that test sets, metrics and tools be documented. A firm that can show you its tests and results for your project is giving you something you can check.
Who should own the code an AI development firm writes for me?
You should, and the contract should say so in a clause that covers the code, the prompts and any trained models. Also ask whether any part of the system runs on the firm's own platform, and what licence applies to it, because a platform can tie the system to the vendor after the project ends.
Should an AI development firm use my data to train models for other clients?
Ask the firm directly and get a clear yes or no in the contract. If the answer is yes, your data could improve models that other companies use. Also ask where your data is stored and who can see it, including any contractors, so that your security review has the facts it needs.
What does vendor lock-in mean when buying AI development?
Vendor lock-in means you cannot leave a vendor without losing your work, your data or your system. The US Office of Management and Budget tells federal agencies to ask for AI proposals that reduce this risk through knowledge transfer, clear rules for moving data and models, clear licence terms and clear pricing. A company can ask for the same four protections.
Why should I pay for a test task before hiring an AI firm?
A short paid task on your own data shows how a firm works on your real problem. A demo shows a prepared best case. Give two or three firms the same task, with a fee and a deadline, and compare the code, the tests and the written explanation. Make sure the people who do the test would also do the project.
What should an AI development quote include?
A clear quote breaks the cost into roles, rates and hours by phase. It estimates monthly running costs for model use, hosting and platform fees as separate lines. It lists what is not included, such as data cleaning or security review, and names the events that would raise the price. Ask how the firm's use of AI affects it.
How do I compare answers from several AI development firms?
Send every firm the same questions before the meeting and ask for written answers. In each meeting, ask for evidence such as a test report or a contract clause. Mark any question the firm could not answer or answered only in general terms. Compare the firms side by side after the last meeting, then test the two clearest.
What should I ask about the people on an AI project?
Ask for the names and roles of the people who will work on your project, whether they can change during it, where they will work and in which time zone, and who decides technical questions. Ask how many of them are employees and how many are contractors, because contractors may have access to your systems and data.
How does Reveneau answer the question about testing?
Reveneau says every change has to pass a large eval suite before release. The suite is a set of automated tests written from the client's specification, scored by a grading model called Jev, which Reveneau says makes the suite run ten times faster than its previous grader. Reveneau also says AI writes all of its code, and that it takes responsibility for the whole project through production and after release.
References
- [1] US Office of Management and Budget, Memorandum M-25-22, Driving Efficient Acquisition of Artificial Intelligence in Government (3 April 2025): testing proposed AI solutions; provisions that reduce the risk of vendor lock-in.
- [2] NIST, Artificial Intelligence Risk Management Framework (AI RMF 1.0), NIST AI 100-1 (January 2023): GOVERN 6.1 on third-party AI risk; MEASURE 2.1 on documenting test sets, metrics and tools.
- [3] Anthropic, Claude Partner Network directory (read 20 October 2026): tiers set by Anthropic; descriptions written by partners.
- [4] TechCrunch, on Tribe AI's seed round (17 July 2024): a network of more than 500 contractors.
- [5] Grid Dynamics, homepage (read 20 October 2026): statement on Beijing Teamsun Technology's minority shareholding.
- [6] TechCrunch, on Ode with Anthropic (15 July 2026): the joint venture of Anthropic, Blackstone, Hellman & Friedman, Goldman Sachs and others.
More in Cost and method
What AI development costs in Silicon Valley
None of the fourteen AI development firms in this guide publishes a price, so every quote is custom. The most useful public number is the wage. The US Bureau of Labor Statistics puts the median annual wage for software developers at $186,640 in the San Francisco metro area and $213,110 in the San Jose metro area, for May 2025, against $135,980 for the whole country. This page sets out those figures, what a firm's price has to cover beyond wages, and how to compare quotes from different firms.
How the AI development companies in this guide were chosen
Every firm in this guide had to meet three tests on 20 October 2026: it builds AI software for other companies, it has an office in San Francisco or Silicon Valley that a published page names, and enough facts exist to say who it fits. This page lists what was checked for each firm and where, how the three kinds of source are treated, which candidates were left out and why, and which facts could not be confirmed, so a reader can repeat any check.