Diffco Services

AI-Driven Product Discovery

Two weeks to answer “should we build this, and what will it actually cost to run?” before you spend six months and a budget finding out. Run by senior AI engineers. Accelerated by the same AI tools we use to ship in production.

Book a Discovery sprint
  • 2-week sprint
  • You own all deliverables
  • NDA from day one
  • Direct CTO access

Is this you?

Who this is for

You have a vision
but no architecture

Leadership has agreed AI matters. Engineering can’t quote a timeline because failure modes, eval criteria, and cost-per-request are unknown. Discovery turns the vision into a buildable spec.

You’ve prototyped
and you’re stuck

A vibecoded demo or notebook that works in the room and falls apart everywhere else. We find out why, and tell you honestly whether to harden, restart, or shelve it.

You’re evaluating vendors
or build partners

You need an independent technical view before handing a six-figure budget to an agency. Discovery produces a brief that lets you compare proposals, including ours, on substance, not slide decks.

You’re entering
regulated territory

Healthcare, fintech, legal: anywhere a wrong AI output has real downside. Discovery includes policy gates, audit logging, and human-in-the-loop design before a single line of production code ships.

What you get

Six deliverables. Every one of them yours to keep.

  1. Eval set: your AI spec

    Real inputs paired with reference outputs and assertions: easy cases, edge cases, adversarial inputs. The spec your AI must meet, reusable across model swaps and vendor changes.

  2. Architecture proposal

    A working diagram of the simplest viable design: data flow, tool inventory, failure modes, and written rationale for every non-obvious choice. Multi-agent only where the eval demands it.

  3. Cost-per-request model

    The real dollar cost at 1x, 10x, and 100x your projected traffic, with token math, caching, routing, and the levers to pull when the bill grows. The run cost you’ll live with, not just the build cost.

  4. Build estimate with confidence ranges

    An engineer-month estimate broken down by component, with every assumption stated. Likely (P50) and worst-case (P90) timelines, and a clear view of where the risk lives.

  5. Go/no-go memo

    A written recommendation to build, shelve, or restart, in three paragraphs your board can read in five minutes. We’ve recommended “don’t build this” before, and we’ll do it again if the numbers say so.

  6. Risk & compliance register

    For regulated workloads: data residency, audit logging design, fairness and drift checks, and the policy gates that need deterministic code, not prompts. Drafted to hold up under examination.

Diffco AI Methodology

A delivery method built for the AI era, not retrofitted to it.

Code is the cheap part now. Knowing what to build first, which foundation will hold at ten times the users, and what not to build at all is where projects are won.

Senior engineers make those calls. More than 100 AI agents per engineer do the building, around the clock, on our own delivery platform built on Claude Code and OpenAI Codex. A living plan with automatic checks keeps every agent inside the lines.

  • You click through your product before we build it
  • We bring you the parts of the job you never put into words
  • Every architecture decision is written down with the alternatives
  • Everything traces back to a goal, which is what makes change fast
  • People make the decisions, and AI agents build inside them
  • Before release, a person watches it work
  • The whole project
    is a document you can read
  • Read the full methodology

Tech stack

What we use during Discovery

Eval & testing

  • OpenAI
  • LangChain
  • Helicone
  • Promptfoo
  • Ragas

AI models

  • Anthropic
  • OpenAI
  • Gemini
  • Hugging Face
  • Mistral
  • Qwen
  • Grok
  • Kimi AI
  • TypeSafe AI
  • Open weight models

Frameworks

  • LangChain
  • LlamaIndex
  • MCP
  • Function Calling

Retrieval

  • Pinecone
  • Weaviate
  • pgvector
  • Qdrant

AI-accelerated work

  • Claude Code
  • Cursor
  • Internal prompt-management
  • automated competitive scanning

Don’t see your stack?

Our process isn’t tied to any one model or framework, so we adapt to yours and upgrade as better tools arrive.

Let’s chat

How we build

Seven stages, with a person signing off at every gate.

Every project runs through Production-Ready AI Engineering: seven stages, senior engineers directing 100+ AI agents, a check on every save, and a person signing off at every gate.

  1. 01

    Discover

    Human + AI

    Workshops and stakeholder interviews with AI in the room. It cross-verifies inputs across calls, docs, and Slack threads, flagging blind spots, edge cases, and contradictions humans miss.

  2. 02

    Plan

    AI

    AI decomposes the work, picks architecture, models, and tools. Surfaces risks, costs, trade-offs, and conflicts between stated requirements, before they become bugs.

  3. 03

    Align

    Human

    You review and approve. Every decision is logged: an auditable trail before any code is written. No black box, no scope drift.

  4. 04

    Build

    Human + AI

    AI agents execute the approved plan inside engineered guardrails. Senior engineers steer and unblock. Sprint cadence with working artifacts, not status decks.

  5. 05

    Validate

    Human + AI

    Three independent layers on every release candidate: automated evals, senior code review, and dedicated Human QA, with manual and exploratory testing alongside security, performance, and accessibility checks.

  6. 06

    Release

    Human + AI

    Production deployment, UAT, knowledge transfer, runbooks. Cutover is documented, reversible, and on a schedule you approve. Your team takes the keys, or we operate it for you.

  7. 07

    Evolve

    Human + AI

    Launch is a milestone, not a finish line. Monitoring, feedback loops, and incremental improvements keep the system compounding, and feed the next discovery cycle.

Every later change re-enters the same loop, and nothing skips a step.

Read the full methodology

Run a 2-week Discovery instead of a 6-month bet.

Most AI roadmaps slip because the team built before they knew what “done” meant. Discovery answers that question first.

Book a Discovery sprint

How Discovery is billed

Discovery sprint

Two weeks, fixed scope, quoted after a free 30-minute scoping call. You own all deliverables, with no exclusivity clause and no rights retained on our side. Use the plan with us, with another team, or in-house.

Phased contract: Discovery first, build second

A phased contract protects both sides. We confirm the project is worth building; you confirm we’re the right partner. If Discovery green-lights the build, we move straight into Dedicated Team or Agent-Led Delivery, from a much stronger starting point.

Free 30-minute
architecture review

Before any paid engagement, we’ll spend 30 minutes pressure-testing your AI idea, architecture, or vendor proposal: no slides, no pitch. Often that’s enough to surface the next move.

Book a free 30-minute call

Why teams choose Diffco

Senior, dedicated teams

Senior experts on every project: AI/ML and software engineers, product and UX designers, and project and product managers. Assigned to you, never reassigned mid-project.

Streamlined development process

Agile delivery on Production-Ready AI Engineering, from early PoC to production rollout. Clear gates, your sign-off at each one, so you always know what’s happening and why.

Transparent billing

You always know:

  • What you’re paying for
  • How time is spent
  • How costs connect to delivered outcomes

Audit-ready from day one

Every agent action is logged and every decision is traceable. SOC 2-aligned practices, HIPAA- and GDPR-aware delivery, and full IP assignment.

Clear communication and detailed reporting

From the first workshop to post-launch optimization, you get:

  • Direct access to the Diffco team
  • Regular progress updates and demo builds
  • Clear documentation of decisions, architecture, and metrics

Own it, or let us run it

Knowledge transfer, runbooks, and documented, reversible cutovers if your team takes the keys. Ongoing support, monitoring, and improvements if you’d rather we operate it.

Why a Discovery sprint,
not a build proposal?

Most AI agencies skip Discovery and go straight to a build quote. Here’s why we don’t.

Because the eval is the spec

The single best predictor of whether an AI build ships is whether the team built the eval set before the prompt. The eval is the spec; the prompt is the implementation. Sequencing matters.

Because the cost-per-request is the contract

Build cost is a one-time number. Per-request cost is what you live with for years. Discovery puts a defensible number on it before anyone signs a build SOW.

Because the right answer might be “don’t build this”

Some AI ideas fail their own eval set or collapse once cost at scale is modeled. We’d rather tell you in week two, not after launch. Roughly 1 in 8 engagements ends in a no-build call.

Because either party should be able to walk

Discovery ends with a decision, not a commitment. If the numbers don’t work or we’re not the right fit, either side walks away, and you keep every deliverable. No strings attached.

Our clients’ success stories

Let’s build something
great together.

Frequently Asked Questions

Two weeks of calendar time, fixed scope. Fee depends on the complexity of the domain (regulated workloads cost more than greenfield consumer features) and the size of the input corpus. Quoted after a free 30-minute scoping call.

You do, in full. Eval set, architecture, cost model, go/no-go memo: all yours. No exclusivity clause, no lock-in. If you take the deliverables to another build partner, that’s a perfectly fine outcome.

We say so, in writing, with the reasoning. Roughly 1 in 8 Discovery engagements ends in a no-build recommendation. The fee is paid either way, and in our view, it’s the cheapest possible insurance against committing six months and a budget to the wrong thing.

Yes, that’s the most common path. If Discovery green-lights the build and you continue with us, we move directly into production engineering with the architecture, eval harness, and cost model already defined.