Our take on Merlin
Merlin bundles access to many premium AI models at a flat monthly price, which is compelling for general-purpose productivity.
Good for
- Users who want multi-model AI access without subscribing to each provider separately
- Chrome-based workflows where a sidebar assistant for summarizing, writing, and searching adds speed
- Students and content creators who need quick article, video, and PDF summarization
Consider first
- Users who need guaranteed, uncapped access to a single premium model for heavy daily use
- Teams needing deep admin controls, SSO, or enterprise-grade governance
- Users who prefer a native desktop app over browser extension workflows
Strengths
- Aggregates many top-tier AI models under one subscription, reducing the need for multiple separate accounts
- Chrome extension integrates naturally into browsing workflows without tab-switching
- Free tier is functional enough to evaluate before committing
- Rated 4.8/5 on Chrome Web Store with 8.8K+ ratings and 1M+ users
Trade-offs
- Credit or usage-tier system can feel limiting for heavy users despite 'unlimited' marketing
- No dedicated API or IDE integration for developers who want programmatic access
- Some Reddit users report friction with subscription cancellation and perceived value on the Pro plan
- Agent feature locked to macOS, limiting cross-platform consistency
Details
Frequently asked questions
What does Merlin do?
Merlin is a Chrome extension bringing ChatGPT, Claude, and Gemini to any website. Free tier; $14/month Pro. Best for browser-heavy knowledge workers.
Is Merlin free?
Yes, Merlin offers a free tier.
What category is Merlin?
Merlin is an AI tool in the Productivity category.
What AI models does Merlin provide?
Merlin offers access to GPT-4o, o1, o3, Claude 3.7 Sonnet with thinking, DeepSeek R1, Gemini 2.5 Pro and Flash, Mistral Large, Llama 3.1 405B, and Grok 3 among others, with model availability added over time.
Is there a free version?
Yes. Merlin has a free tier that provides basic access to AI models with limited usage. The Pro plan unlocks higher limits and premium models.
How much does Merlin Pro cost?
Pro is priced at $19/month when billed annually. Month-to-month billing may cost more. Teams plans are available per-seat.
What platforms does Merlin support?
Merlin works as a Chrome and Edge browser extension, and is also available as iOS, Android, Windows, and Mac apps. The agent feature is currently macOS-only.