Your team writes 40 drafts a week across 8 clients. Each with their own tone, vocabulary, and don't-say list. ChatGPT helps once, then you spend an hour rewriting it. We fix that.
14-day Performance Pilot. No card required.
How we stack up
Per-client brand voice memory
Per-seat tools have brand voice. You pay per writer to use it.
Structured output (paste-ready JSON)
3-5 variants per call, schema-locked
Hallucination warning surface
Model flags missing context before you ship
Direct API for your workflow
Drop into HubSpot, Notion, Airtable, your CMS
Unlimited team seats
One flat price. Add your whole team.
Cancel in 1 click, no human required
No retention calls, no '3-month suspension' tricks
Email warning 7 days before every charge
Zero surprise renewals. Ever.
Stop service = stop billing immediately
Cancel today, billing stops today. No edge cases.
The problem
Every account exec on your team has the same workflow: draft in ChatGPT, paste into a doc, rewrite for two hours to match the client's voice, send to the strategist, revise, send to the client, revise again. The AI saved you 15 minutes and cost you four hours of senior time.
What this costs you today
One senior copywriter billing at $200/hour, spending 10 hours/week rewriting AI drafts to match client voice = $2,000/week in billable time burned. Across a year: $96,000.
Iseri Studio Pro at $997/month pays for itself by Tuesday.
How it works
One profile per client. Style guide, target audience, do/don't phrases, sample copy that worked. Reusable across every generation.
Two sentences about the campaign. Pick a content type: ad copy, email sequence, landing page, or social post. Hit generate.
Three to five structured variants, on-brand, in eight seconds. Pick the winner, paste it into your campaign, move on to the next client.
Or call it directly from your stack
curl -X POST https://api.iseristudio.com/v1/generate \
-H "x-tenant-id: your-tenant-id" \
-H "x-api-key: sk_live_..." \
-H "content-type: application/json" \
-d '{
"brand_voice_id": "acme-saas",
"content_type": "ad_copy",
"brief": "Launch our new dev productivity tool for engineering leads.",
"variants": 3
}'What you get
Each client gets an isolated brand voice profile. No cross-contamination, no leaked context, no confused tone.
Ad copy, email sequences, landing pages, social posts. Each with a structured schema your team can paste straight into a campaign.
Generations stay anchored to the brand profile. Run it five times, get five on-tone variants. Not five different writers.
Three to five variants per request by default. Pick the winner, iterate, ship. No more single-shot guessing.
Drop generation into your existing tools like Notion, Airtable, or your CMS. REST API, structured JSON, rate-limited per tenant.
Your clients see your brand, not ours. Useful when the agency is the AI shop and the client doesn't need to know which model is under the hood.
From your dashboard. No retention calls. No 3-month suspension games.
Not happy after the pilot? Refund, no questions, no exit interview.
Email notice 7 days before every renewal. Plus 24h reminder.
4-hour response. Direct line for paid customers. No chatbot wall.
Pricing
Add your whole team for free. Pick the tier by how many client voices you manage, not how many people are logged in.
For solo operators and freelance agencies.
For agencies running 4 to 10 active accounts.
For shops with 10+ clients or a content-heavy book.
Every plan starts with a 14-day Performance Pilot. No card required. If we can't produce on-brand copy by day 14, you walk. No invoice.
Questions you might have
Three things ChatGPT cannot do at agency scale:
1. Brand memory across clients. ChatGPT starts from zero every conversation. Custom GPTs are a hack: no versioning, no audit trail, no team isolation. We store a versioned brand voice per client. Your junior writer just picks Acme SaaS from a dropdown and gets on-tone copy. No prompt engineering required.
2. Workflow-shaped output. ChatGPT returns prose. We return structured variants: 3 ad copies with hook, body, CTA, or a 5-email sequence with subject lines and send delays. Paste straight into Mailchimp, HubSpot, or your ad manager.
3. Hallucination warnings. When the model makes assumptions (missing product name, undefined audience, vague brief), we surface a warnings array with the output. ChatGPT silently invents. Your agency eats the cost when the client catches it.
One click from your dashboard. That is it.
No retention call, no 30-minute exit interview, no three-month service suspension that quietly reactivates and bills you. Cancel on day 4 and your card never sees a charge. Cancel on day 60 and your billing stops the same day, no prorating games.
We have seen what the alternative looks like. We refuse to ship it.
No, and we have built the policy into the product:
7 days before every renewal: automatic email with the exact charge amount, the next billing date, and a one-click cancel link.
24 hours before charge: a second reminder, same one-click cancel.
After charge: receipt with full breakdown. If something looks wrong, reply to the email and a human responds within 4 hours.
No quiet auto-renewals. No tried-to-email-you excuses. No surprises on your statement.
Fifteen-minute call. Bring the client whose voice nothing else nails. We will generate three on-brand variants live, on your screen.