Monica vs Merlin: two browser AI assistants compared
Monica and Merlin are close competitors: both are browser extensions that route to several models and help you summarize, write and chat with content. Here is how they differ, and a deeper alternative.
The usual choice
Pick one. Pay one subscription. Live inside one vendor's models.
- Everything Monica does
- Everything Merlin does
- Plus 49+ models, one login
Both are browser AI sidekicks. Monica starts cheaper and has a polished desktop app; Merlin shines at chatting with web pages and PDFs. Or get the full owned model stack instead — TulexAI runs text, image and voice from $11/mo and adds Runway, Kling and Seedance video at $23, with 1 free prompt and no card.
Monica vs Merlin vs TulexAI
| Monica | Merlin | TulexAI | |
|---|---|---|---|
| Starting price | ~$8/mo | ~$15/mo | $11/mo |
| Models included | Several | Several | All models |
| In-browser assistant | N/A | ||
| Chat with PDFs / pages | Excellent | ||
| Image generation | |||
| Full video suite | |||
| Telegram bot |
Which should you pick?
Choose Monica for a lower entry price and a polished desktop app; choose Merlin for strong PDF and web-page chat. If you want owned, full-depth models across text, image and voice, TulexAI bundles 37 from $11/month, and its video engines sit on the $23 plan.
Why choose at all? TulexAI includes both
49+ models in one subscription - here are the ones that cover what Monica and Merlin each do best.
Text & Chat
- OpenAI GPT-5.4Premium
- Claude Opus 4.8Premium
- Gemini 3.1 ProStandard
Image
- GPT Image 2Premium
Video
- SoraPremium
Voice
- ElevenLabs TTSPremium
Frequently asked questions
They are close. Monica starts cheaper and has a polished desktop app; Merlin is strong at chatting with PDFs and web pages. For full-depth text, image and voice models, TulexAI bundles 37 from $11/month, with video from $23.
Get both - and 35+ more models
40+ AI models - GPT-5, Claude Opus 5, Gemini 3.1, image, video & voice. One subscription from $11/mo.
Try 1 prompt free1 free prompt · no credit card · cancel any time