Merlin AI vs Copy.ai
Plans, free access, limits and intended use side by side, taken from each vendor’s own pages. No score and no winner: the facts show where the two differ.
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Read the fair use terms before you buy a year of Pro
AI chat, brand-trained agents and workflows for sales and marketing content.
- Free access
- Merlin AI: Free access
- Copy.ai: No free tier
- Paid from
- Merlin AI: USD 15 per seat a month
- Copy.ai: USD 24 per month
- Plans listed
- Merlin AI: 3
- Copy.ai: 5
- Public API
- Merlin AI: Not confirmed
- Copy.ai: Yes
Where Merlin AI and Copy.ai differ
- AccessMerlin AI offers free access, while Copy.ai has no free tier.
- PlansMerlin AI lists 3 plans and Copy.ai lists 5.
Head to head
Each value from the tool’s profile and the vendor’s own pages
| Merlin AI | Fact | Copy.ai |
|---|---|---|
| Access and price | ||
| Free access availableMerlin Free · USD 0 | Free accessDiffers | No free tier |
| USD 15 per seat a monthMerlin Teams · billed $180 yearly | Lowest listed paid plan | USD 24 per monthChat · billed annually as USD 288 per year · USD 29 billed monthly |
| Free $0; Pro $19 a month, billed yearly | Pricing model | From USD 24 a month; Enterprise by quote |
| 3 | Plans listedDiffers | 5 |
| Not confirmed | Public API | Yes |
| Not confirmed | Card to start | Not confirmed |
| Not confirmed | Open source | No |
| What it is for | ||
| Trying several AI models from one account, mainly through a browser extension | Built for | Brand-consistent sales and marketing content for teams |
| Writing & content | CategorySame | Writing & content |
| Platforms |
|
| Works with |
|
| How current | ||
| Profile sources checked | ||
| Prices confirmed · Oct 2, 2026 | Pricing checkSame | Prices confirmed · Oct 17, 2026 |
Official source check for both tools. No hands-on testing and no score: “Differs” marks a documented difference, not a better tool.
Plans and prices
Merlin AI
Prices confirmed · Oct 2, 2026- Merlin FreeUSD 0
- Merlin ProUSD 19 a monthbilled $228 yearly
- Merlin TeamsUSD 15 per seat a monthbilled $180 yearly
Copy.ai
Prices confirmed · Oct 17, 2026- ChatUSD 24 per monthbilled annually as USD 288 per year · USD 29 billed monthly
- GrowthUSD 1,000 per monthbilled annually as USD 12,000 per year
- ExpansionUSD 2,000 per monthbilled annually as USD 24,000 per year
- ScaleUSD 3,000 per monthbilled annually as USD 36,000 per year
- EnterpriseContact provider
Strengths and limits
Merlin AI
Strengths
- Several model families in one account: The pricing page lists models from OpenAI, Anthropic, Google, DeepSeek and xAI, so you can compare answers without separate sign-ins.
- Works where you already browse: The Chrome extension offers summarizing and writing on the page you are viewing, alongside web, desktop and mobile apps.
- A Free plan to try first: Free costs $0 with limited access to basic and Plus-level models, so you can test before paying.
Limits to plan around
- Fair use limits sit behind unlimited: The terms end service for the rest of the month above $100 of usage cost and for the day above $16, and the plan table does not state this.
- Extension sends visit data: The privacy policy lists page URL, previous URL, referrer and user ID among data sent to Merlin's servers.
- No API and a 100k context: The pricing page says there is no direct API access and the Pro context window is currently 100k tokens.
Copy.ai
Strengths
- Several model families: The Chat plan card lists OpenAI, Anthropic and Gemini models, and a conversation can switch models midway.
- Five seats in the entry plan: The Chat plan card lists 5 seats with unlimited words and unlimited chat projects.
- Tone profile plus #tag document library: Brand Voice and Infobase let a team reuse tone and company facts instead of repeating them in every prompt.
Limits to plan around
- No free plan: The pricing page lists only paid plans, and the help center says the free plan was sunset.
- Steep step after five seats: The plan after Chat is Growth, billed yearly with no monthly option, so a sixth writer changes the budget by an order of magnitude.
- Credits do not roll over: Workflow credits reset each month and apply to the whole workspace.
See both products
Start from your task, not from a winner.
Run both tools on the same real task, then compare the result, how much editing it needs and how fast it uses your plan’s allowance.
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Comparing tools from different categories is fine, and often useful — a writing assistant and a research tool solve different halves of the same job. The table will show you exactly where they diverge.
Questions about comparing tools
How does the comparison work?
Add two tools to the comparison tray from any tool card, then open this page. The table pulls each tool's verified plan details, platforms, strengths and limits from its profile, so both columns carry the same kind of evidence, with a separate source-check date for each tool.
Do you declare a winner?
No. The table sets two tools against each other on documented facts, not on a score. Which one wins depends on your task, your budget and your usage volume — three things we cannot see from here.
Why are some cells empty or marked unverified?
Because we could not confirm that detail on the vendor's own pages. Rather than filling the gap with a figure from elsewhere, we mark it and say why on the tool's profile.
Can I compare more than two tools?
Not at once. Two columns keep the differences readable and force a real decision. Remove either selected tool to replace it, or clear both to start a new pair.
Every figure in the table above comes from the linked profile, where the source and the verification date are listed. Browse all tools or read the editorial policy.