A number produced without questions counts as a warning, not a service level. An experienced provider will come back with questions first: about who owns the data and what happens on failure. A provider that quotes without asking anything is probably working from a template, and the gap will be corrected later — and you will pay for it.
Be wary of any distance between the engineers on the sales call and those who eventually appear in the repository. Request named engineers in the statement of work, with a clause covering replacement. A team that only offers a pool of resources and gpt integration services never names people is reserving the option to staff you with whoever is free.
Ask for the source repository from the start. A team that shows a build only at the end of each phase is asking you to take delivery laravel vs ruby on rails comparison faith. Regular commits and pull requests show you the actual pace far better than a weekly report. The same holds for the CI pipeline: if there is no pipeline, promises about quality remain nothing more than words.
Vague phrasing around IP is not an oversight. The contract should state explicitly that the code, designs and documentation belong to your company upon settlement of the relevant invoice. Look too at the jurisdiction and the payment schedule: a large upfront payment with nothing due in return for weeks removes your only leverage.
Lastly, examine communication. Establish how much working-time overlap you will share each day, who is expected to answer your questions and how quickly. Four hours of overlap is normally sufficient; zero overlap turns each small question into a lost day. Unclear written communication in the sales phase will not improve under delivery pressure.
