Creative & Content

Marketing Copy Agent

Brand-voice-trained writer for ads, social posts, email campaigns, and landing-page copy.

Features

5

Tech

13

Steps

5

AI Agent

Marketing Copy Agent

Production-readyObservable
OpenAI GPT-5
Anthropic Claude 4.7
Vercel AI SDK

Capabilities

What this agent does

Every capability is shipped end-to-end — not a feature flag. You get a working slice on day one and we expand from there.

Feature 01

Brand voice training

Reads your existing content; locks in tone, vocabulary, taboos.

Feature 02

Multi-channel adapt

One brief → X thread, LinkedIn post, IG caption, email body.

Feature 03

A/B variants

Generates 5+ variants per asset for testing.

Feature 04

Trend-aware hooks

Pulls in current events and platform trends.

Feature 05

Compliance check

Flags claims that need legal review, regulated industries.

Stack

13 technologies we use

Production-tested tools chosen for reliability, observability, and developer velocity. Every piece is swappable.

OpenAI GPT-5Anthropic Claude 4.7Vercel AI SDKMistralKlaviyo APIHubSpot MarketingMailchimpBuzzsumoBrand24Meta Ads ManagerGoogle AdsLinkedIn AdsX API

System at a glance

How the agent flows

A simplified view of what comes in, what the agent does with it, and what it produces. Each arrow is observable end-to-end.

Inputs

Creative briefBrand guidelinesAudience data

Agent

Marketing Copy Agent

Plan → tool-call → reflect, with approval gates.

Tools the agent calls

OpenAI GPT-5Anthropic Claude 4.7Vercel AI SDKMistralKlaviyo APIHubSpot Marketing+7 more

Outputs

Asset variantsA/B optionsSchedule + publish
Every step traced in Langfuse / Braintrust · cost + latency monitored · full replay on failure · human-in-the-loop where it matters

Engagement

How we roll it out

A 5-step process from kickoff to handover. Every step has a deliverable you can sign off on.

  1. 01

    Brand audit

    Ingest existing copy; build a voice document.

  2. 02

    Audience modeling

    Define 2-4 personas with their language quirks.

  3. 03

    Templates + brief intake

    Channel-specific templates plus brief form for new asks.

  4. 04

    Generate + A/B

    Multi-variant output piped into ad platforms.

  5. 05

    Refine on results

    Top-performing copy becomes new training data.

Outcomes

What you can expect

Real numbers we see when Marketing Copy Agent ships on top of an actual workflow. Specifics vary with starting baseline, data quality, and scope — but these are the ranges.

Outcome 01

10×

Variant volume

Per brief, with A/B-ready alternates baked in.

Outcome 02

98%

Brand consistency

Tone + visual identity match score on QC review.

Outcome 03

−60-80%

Production cost

Vs equivalent agency or in-house team for repeatable assets.

Sample use cases

What this looks like in practice

Three concrete scenarios where teams deploy Marketing Copy Agent today. Your engagement starts with one of these (or your own variant) and expands from there.

01

Always-on social calendar

One brief becomes 30+ on-brand posts across LinkedIn, IG, X, TikTok — scheduled, performance-tracked, with the top performers feeding back into the writer.

02

Product photo generation

An e-commerce shop without a studio gets lifestyle scenes for every SKU — different backgrounds, demographics, seasons — at a fraction of a photoshoot.

03

Long-form to short-form pipeline

A podcast or webinar gets episode notes + 10 audiogram clips + a blog post + a newsletter — all generated overnight from the raw recording.

Typical engagement

From kickoff to live in 4-8 weeks

Most Marketing Copy Agent engagements follow this shape. We give you a firm quote after a 30-minute scoping call, and the price is fixed up-front so you can budget.

2-3 weeks

Pilot

  • Discovery + playbook write-up
  • Tool design + guardrails
  • Eval suite + sandbox deploy
Core

2-4 weeks

Production

  • Hardened deploy on your stack
  • Observability dashboard + alerts
  • Two-week supervised mode

Ongoing

Handover & support

  • Runbook + team training
  • Monthly tuning + eval review
  • Pause or expand any time

Indicative range

$1,500 — $5,000

Full project, scoped + fixed up-front. Includes pilot, production, and 30 days of post-launch support.

Or hire us by the week

from $600/wk

Embedded retainer — best for evolving scopes.

Ready to ship Marketing Copy Agent?

Tell us about your data, your tools, and what success looks like. We come back within one business day with a clear plan, price, and timeline.

Get started

Ready to ship the software your business actually runs on?

Tell us what you're building. We respond within one business day with a clear plan, price, and timeline.

16 industry CRMs shipped96+ clients · 14 countriesRemote-first · Global delivery