Productivity · Head-to-head
Comet vs Glean
Comet (freemium, AI Score 8.4/10) vs Glean (paid, AI Score 8.4/10). Side-by-side pricing, features, pros and cons, and which to pick.
The verdict
Pick Comet if…
- →you need a genuinely free option
- →budget is the constraint
- →your primary use case is people who want an assistant that acts on the page in front of them, and who would rather switch browsers than add another tab to their workflow.
Pick Glean if…
- →your primary use case is enterprise it and knowledge-management leads at 1,000+ seat companies whose work is split across both google and microsoft plus slack, jira and salesforce, and who need search that respects existing permissions.
- →you need: support
Side-by-side specs
| Spec | Comet | Glean |
|---|---|---|
| Category | Productivity | Productivity |
| Pricing model | freemium | paid |
| Headline pricing | Free to download; Perplexity Max at $200/mo unlocks the highest limits | Custom enterprise pricing — check website for current rates |
| Free tier | Yes. The browser is a free download and works without a paid Perplexity plan. The agentic features and the higher query limits are what a subscription buys. | — |
| AI Score | 8.4/10 | 8.4/10 |
| Best for | People who want an assistant that acts on the page in front of them, and who would rather switch browsers than add another tab to their workflow. | Enterprise IT and knowledge-management leads at 1,000+ seat companies whose work is split across both Google and Microsoft plus Slack, Jira and Salesforce, and who need search that respects existing permissions. |
| Editor's pick | — | — |
| Use cases | productivity research agents | research productivity agents support |
| Date added | 2026-08-02 | 2026-05-01 |
Pros and cons
☄️
Comet
Productivity · freemium
Pros
- ✓Assistant operates on the page you are already viewing instead of in a separate window with no context
- ✓Chromium base keeps most Chrome extensions working, which removes the usual dealbreaker when switching browsers
- ✓Import carries bookmarks, passwords, cookies, history and extensions across in one step
- ✓Free to download with no subscription required to start using it
- ✓Background Assistants give paying users parallel agentic tasks with confirmations gathered in one place
Cons
- ×Browser-agent limits are published only as relative claims, so no tier states how many agent queries you actually get
- ×The features most people want the browser for, Background Assistants and Email Assistant, sit behind the $200/mo Max tier
- ×Switching browsers is a bigger commitment than installing an extension, and profile migration is never fully clean
- ×An assistant with access to your logged-in sessions is a meaningful trust decision that a chat window in another tab does not require
Glean
Productivity · paid
Pros
- ✓Mirrors each source system's permissions per user, so answers can't surface documents the searcher lacks access to — the failure mode that sinks most in-house RAG projects
- ✓Genuinely broad connector library (100+) covering both the Google and Microsoft worlds, plus Slack, Atlassian, Salesforce and developer tooling
- ✓Model-agnostic: not locked to one lab's stack, with customer-hosted and BYO-model paths for regulated buyers
- ✓Agents can write back into source systems and speak MCP, so it functions as an action layer rather than only a question-answering surface
Cons
- ×No self-serve tier and no published pricing — every deployment routes through sales and an IT-led rollout
- ×Microsoft 365 Copilot and Google Gemini Enterprise now ship comparable grounded search bundled with suites most buyers already own, making Glean a second line item to justify
- ×Answer quality tracks source-data hygiene: stale wikis and over-shared drives produce confidently wrong answers, and cleanup is on you
- ×Value scales with how fragmented your stack is — a company living almost entirely inside one suite gets far less out of it
Related comparisons
Updated 2026-08-10. Spec data sourced from official product pages and tracked in our public directory at /tools.