Fixed-bid: when scope is clear
If you know exactly what you need and want budget certainty, a fixed-bid project is ideal. Scope, price and milestones are agreed up front. The trade-off is flexibility: significant changes go through change control, because the price assumed the original scope.
Best for well-specified MVPs, defined integrations and discrete builds.
Dedicated team: when the roadmap will evolve
If you are building an evolving product and priorities will shift, a dedicated team is usually the better fit. You get a stable, senior squad that operates as an extension of your team, with predictable monthly cost and full control of the roadmap.
Best for products past the MVP stage, ongoing platforms, and companies without enough in-house capacity.
Time & materials: when the work is open-ended
For exploratory or rapidly-changing work, time-and-materials keeps you flexible: you pay for time used and re-prioritize each sprint. It demands more involvement from you, and rewards it with maximum adaptability.
A practical path
Many clients start with a short, fixed-fee discovery sprint to remove uncertainty, then choose fixed-bid for a defined first release or a dedicated team for an ongoing roadmap. Match the model to how much your scope is likely to change.