# Vendor FDE vs. independent FDE: what to ask before you sign

How forward-deployed engineers from model vendors and from independent firms differ, what Gartner predicts for vendor-built agents, and what to ask first.

Author: TeqEngine
Published: 2026-10-05
Canonical: https://teqengine.ai/insights/vendor-fde-vs-independent-fde

## The decision

Forward-deployed engineering puts engineers inside your team to build on your systems. Model providers, large consultancies and independent firms all sell it now. The difference that matters is who the engineers answer to when the evidence points away from their platform, and whether your team can run and change the agent after they leave.

- Ask who benefits when the evidence favors a different model or platform.
- Write ownership, knowledge transfer and an exit plan into the first agreement.
- Make the client team ship the next model change before the engagement ends.

## What forward-deployed engineering buys you

A forward-deployed engineer works inside your repositories, tickets and release process instead of across a contract boundary. The appeal is speed and context: the people building the agent see the real data, the real permissions and the real users from the first week.

Three kinds of supplier now sell it. Model providers run their own deployment teams and companies. Large consultancies have built practices aligned to a single model or cloud vendor. Independent firms build on whichever models and platforms the evidence supports. All three can embed engineers; they differ in what they are paid to recommend.

## What Gartner predicts for vendor-built agents

On September 29, 2026, Gartner predicted that by 2028, 70% of enterprises will abandon agentic AI built by vendor forward-deployed engineering, trapped by soaring costs and unable to evolve it on their own. Its guidance for buyers covers governance, business value, IP ownership, project co-ownership, knowledge transfer and an exit strategy from day one.

Sources: [Gartner press release: 70% of enterprises will abandon agentic AI built by vendor forward-deployed engineering by 2028 (September 29, 2026)](https://www.gartner.com/en/newsroom/press-releases/2026-09-29-gartner-predicts-70-percent-of-enterprises-will-abandon-agentic-ai-built-by-vendor-forward-deployed-engineering-by-2028).

The prediction is about dependence, not about forward-deployed engineering itself. An agent that only its builder can change becomes expensive the first time a model is retired, a cheaper model appears or the workflow moves. The questions below keep that dependence visible before it becomes a cost.

## Where each kind of engineer fits best

**Vendor-aligned and independent forward-deployed engineers**

| Situation | Vendor-aligned engineers | Independent engineers |
| --- | --- | --- |
| You are committing to one model family for years | Strong fit: deep product knowledge and early access | Useful for an independent review of the build |
| You run, or expect to run, several models | Their models come first | Strong fit: candidates compared on your own cases |
| A model retirement or a cheaper candidate is coming | Migration within their platform | Strong fit: adopt, hold or switch decided on evidence |
| Your team must own and change the agent | Depends on the agreement | Strong fit when the next-change test is part of the scope |
| You need custom-model or pre-release access | Strong fit | Works alongside the vendor relationship |

## Questions to ask before, during and at the end

**Questions for any forward-deployed engagement**

| When | Question | Evidence to ask for |
| --- | --- | --- |
| Before signing | Who owns the code, the evaluations, the test cases and the tooling? | Ownership terms in the agreement, and the repository where the work will live |
| Before signing | Does the supplier earn more when you use more of a particular model or platform? | Disclosed partnerships, referral terms and how model choices are made |
| During the work | How is quality measured, and on whose cases? | A scorecard on your own tasks, with every attempt counted |
| During the work | Are other models compared, and is the comparison repeatable? | The same cases run across candidates, with the results kept in your repository |
| At the end | Can your team ship the next model change without the supplier? | A completed next-change exercise run by your engineers through the regression gate |
| At the end | What happens to the agent if the engagement ends tomorrow? | Runbooks, access transfer and an exit plan written before the work started |

## Make the next change the acceptance test

The strongest protection against dependence is a simple acceptance condition: before the engagement ends, your team ships a model or configuration change through the same gate the supplier used, without the supplier's help. If that exercise fails, the handoff is not finished.

This is how TeqEngine scopes forward-deployed work. We don't resell models or platforms, every engagement is measured on quality, speed, cost, control and drift, and the work is finished when your team can ship the next model change through the gate.

[Why TeqEngine](https://teqengine.ai/why-teqengine). Compare independent forward-deployed engineers with your own team, a model vendor's engineers, a large consultancy and a tool alone.

## Sources and scope

Technical references inform the cited statements. The decision frameworks and synthetic examples are TeqEngine’s editorial guidance.

- [Gartner press release: 70% of enterprises will abandon agentic AI built by vendor forward-deployed engineering by 2028 (September 29, 2026)](https://www.gartner.com/en/newsroom/press-releases/2026-09-29-gartner-predicts-70-percent-of-enterprises-will-abandon-agentic-ai-built-by-vendor-forward-deployed-engineering-by-2028)

## Continue reading

- [Why TeqEngine](https://teqengine.ai/why-teqengine)
- [Build vs. buy AI agents](https://teqengine.ai/insights/build-vs-buy-ai-agents)
- [Harness Review](https://teqengine.ai/services/ai-agent-audit)