Synthesia vs Writesonic
Two ai tools affiliate programs, compared field by field on verified terms. Every figure below was checked against the official program page; each profile links the source. Scoring follows our public rubric.
25% recurring for 12 months · 60 days cookie
Good — best for youTube reviewers and L&D/corporate-training content
Writesonic
AI writing & SEO platform · AI
20–30% recurring, lifetime · 30 days cookie
Fair — best for high-volume AI tool roundups and comparisons
The verdict
Synthesia — 74/100
Synthesia wins by 14 points on stronger earnings structure, a longer attribution window (60 days vs 30 days), lower payout friction. Writesonic still makes sense for a specific fit: high-volume AI tool roundups and comparisons.
Verified terms, side by side
| Field | Synthesia | Writesonic |
|---|---|---|
| Commission | 25% recurring for 12 months | 20–30% recurring, lifetime |
| Model | Recurring (12 months) | Recurring (lifetime) |
| Cookie duration | 60 days ✓ | 30 days |
| Est. $/first referral | ~$88 ✓ | ~$40 |
| Network | PartnerStack | FirstPromoter |
| Payout threshold | $5 | $50 |
| Payout methods | PayPal, Stripe | PayPal, wire |
| Payment terms | Monthly, ~NET 30 | Monthly, ~NET 30 |
| Geo focus | Global | Global |
| Terms verified | 2026-08 | 2026-08 |
Score breakdown
Subscores are 1–10, weighted per the methodology.
Earnings power (35%)
Attribution window (20%)
Trust & conversion (20%)
Payout reliability (15%)
Ease of entry (10%)
Why pick Synthesia
- Category leader in AI avatar video
- Corporate/L&D buyers = higher plan values
- Impressive demos convert well in video content
Watch out
12-month cap
Full Synthesia profile →Why pick Writesonic
- Lifetime recurring in a fast-growing category
- Easy approval
- Frequent product launches create content hooks
Watch out
High churn typical of AI writing tools
Full Writesonic profile →