Compare . Team strategy
In-house vs. agency AI team
Both models work. The right choice depends on whether AI is your product or a capability your product needs. Here are the real numbers and trade-offs.
Updated . 2026-05-02 . 6 min read
Side-by-side
The comparison
| Factor | In-house team | Agency (AISD model) |
|---|---|---|
| Time to first delivery | 3-9 months. Recruiting, interviewing, onboarding, then building. Pipeline for senior AI talent is 60-90 days minimum | 2-6 weeks. Team is pre-assembled and experienced. Discovery sprint to working prototype in 14 days |
| Annual cost (3-person team) | $750K-1.2M fully loaded. Base salaries ($180-250K each) plus benefits, equity, tooling, management overhead, and recruiting fees ($60-90K) | $300K-600K project-based. Pay for output, not headcount. No benefits, equity, or recruiting costs. Scale up/down without HR |
| Knowledge depth | Deep in your domain over time. Slow to build initially. Risk of knowledge silos if team is small | Broad across domains from day one. Patterns from dozens of AI deployments. Less depth in your specific business logic initially |
| Retention risk | High. AI engineers are the most sought-after talent in tech. Average tenure: 18-24 months. Losing one person can stall the whole team | Low. Agency manages its own retention. If one engineer leaves, they backfill without disrupting your project |
| Scalability | Slow to scale. Each new hire is a 3-month process. Scaling down means layoffs or idle headcount | Fast to scale. Add or remove capacity per sprint. No long-term commitments required |
| IP ownership | You own everything by default. Clear and simple | You own deliverables per contract. Make sure work-for-hire is explicit. AISD transfers all IP at handoff |
| Best for | AI is your core product differentiator and you need a permanent team building institutional knowledge | AI is a capability you need but not your core business. You want production systems without building a permanent team |
Decision framework
Five questions to decide
- 01
Is AI your core product differentiator?
Yes: In-house. Build institutional knowledge. . No: Agency. Pay for outcomes.
- 02
Do you have 6+ months before you need production AI?
Yes: In-house is viable. . No: Agency ships faster.
- 03
Can you afford $750K+/year for a 3-person team?
Yes: In-house is an option. . No: Agency stretches budget further.
- 04
Do you have a senior AI leader to manage the team?
Yes: In-house can work. . No: Agency brings leadership built in.
- 05
Will your AI needs be constant for 2+ years?
Yes: In-house ROI improves over time. . No: Agency gives you flexibility.
The hybrid model
Most smart teams do both.
Start with an agency to ship your first production AI system fast. Use that time to hire your first internal AI engineer. Transfer knowledge, codebase, and runbooks. Scale in-house as the work justifies it.
AISD is built for this handoff. Every engagement ends with documentation, architecture diagrams, and a runbook your internal team can own. We'd rather make ourselves replaceable than create dependency.