Paste promotion text
CouponBrain returns codes, discounts, and end dates.
Live extract
Source text in, grounded coupon JSON out.
Extract structured coupons
CouponBrain is Affensus's specialized language model. Paste promotion text and get codes, discounts, and end dates as canonical JSON.
~3.3x
Faster Processing
Faster Processing
Compared to GPT Luna.
~89%
More Accurate
More Accurate
Compared to GPT Luna.
~43%
Lower Cost
Lower Cost
Compared to GPT Luna.
Compared to GPT Luna
Coupon extraction without the general-model overhead.
CouponBrain is trained for promotion text. Same extract job as a general model, less spend, less wait, more grounded codes.
01
Lower cost
A specialist extract instead of a general-model bill.
- ~43% lower cost per extract
- $0.00015 per request at volume
- Credits that last 12 months
compared / gpt-luna / cost
Compared to GPT Luna
GPT Luna1.00
CouponBrain Mini~43% less
Your numbers depend on volume and source text.
Use cases
What people actually build on top of our API.
01
Email → Coupon Feed
Connect a merchant/promotions inbox to CouponBrain. Every incoming promotional email gets converted automatically into structured coupon data: code, discount, minimum spend, expiry date, restrictions, etc. That could feed a coupon website or affiliate platform automatically.
inboxcodesexpiry
02
Coupon Monitoring Agent
A scraper monitors hundreds or thousands of merchant websites. CouponBrain interprets what it finds and determines which offers are coupons, their conditions, and campaign information. The system can automatically add new coupons, update existing ones and flag expired offers.
scrapemonitorexpired
03
Browser Extension / Shopping Assistant
When someone visits a webshop, an extension retrieves promotions and uses CouponBrain to normalize them. Instead of displaying messy promotion text, it can show something like “SAVE20 — 20% off orders over €100 — expires Sunday” and determine which coupon applies to the user’s basket.
extensionbasketapply
affensus.com
CouponBrain Mini 1.10
CouponBrain Mini 1.10 is a specialized model from Affensus for extracting structured coupons from promotion text. It returns canonical JSON with codes, tiers, scope, events, and themes. Your use is subject to Affensus's Terms & Privacy Policies.
View API referencePer request
$0.00015
24h uptime
100%
FAQ
Everything you need to know about CouponBrain and the extract API.
CouponBrain is Affensus's specialized language model for extracting structured coupons from promotion text. Send source text to POST /api/extract and get codes, discounts, tiers, scope, events, themes, and an end date as canonical JSON.
General models spend tokens on a narrow extract job. CouponBrain is trained for promotion text — ~43% lower cost, ~3.3x faster, and ~89% more accurate than GPT Luna on the same coupon extract workload.
A grounded payload: coupon codes, type, currency, scope flags, tiers, campaign events, campaign themes, and an end date. Format is json or toon. Empty model or format is latest and json.
One successful extract uses one credit. Buy a pack, call the API with a Bearer key, and each billed request deducts a credit. Unused credits expire 12 months after purchase.
Create an account, open Generate API key, and send the secret as Authorization: Bearer aff_…. The secret is shown once.
Yes. Credits work in personal and commercial products. For 5M+ or custom volume, email [email protected].
Ready to start building
Create an account, get an API key, and call POST /api/extract.
One credit per extract. Credits last 12 months.
More questions? Contact Sjoerd.
Sjoerd Copier, Affensus
Custom volume or a partnership? Get in touch.