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Perplexity
Comet Assistant
Released Jul 9, 2025
The agent built into Perplexity's Comet browser that browses on the user's behalf, works across tabs and completes multi-step tasks, pausing for permission on logins and checkouts.
- Domain
- Browser
- Access
- Generally available
- Plan
- Free (higher tiers on Pro/Max)
Runs on
Strengths & weaknesses
Strengths
- Comet browser is free for everyone
- Multi-tab tasks; Max users can run background assistants in parallel
- Asks permission before high-stakes steps; passwords and payment data not accessible
Weaknesses
- Background assistants Max-only
- Model defaults differ by plan and change often
Not notable: non-frontier developer; only claim is an internal '23% better' test (2025-11-06 relaunch). releaseDate is the Comet launch for Max subscribers (2025-07-09). underlyingModels from the 2026-02-20 changelog: Sonnet 4.6 default for Pro (Opus 4.6 default for Max — not in models.json); may be superseded. Max users can choose the agent model (borderline harness).