Perplexity Comet
https://www.perplexity.ai/comet
AI-native Chromium-based browser. Assistant operates across tabs and sessions; persistent memory of preferences; multi-step agentic tasks without leaving the browser. Memory is opt-in and server-side; enterprise memory tier separately available.
Active · Verified 2026-10-23 · fresh as of 2026-10-23 · 67 cited facts, 8 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Tier
- T1
- Section
- Browser-agent memory
- Created
- 2025-07-09 (limited launch Windows/macOS); 2025-10-02 (public release free worldwide) third-party fix
- Latest release
- not applicable — not OSS fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- Free (since Oct 2025); optional Comet Plus $5/mo; Perplexity Pro $20/mo / Max $200/mo third-party fix
- Funding
- Perplexity $1.4B+ total raised; $21.2B valuation (Series E-6 early 2026) third-party fix
- Freshness
- 2026-10-23 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial third-party fix
- Deployment locus
- computer-use vendor fix
- Compliance
- fedramp, gdpr, hipaa, iso27001, pci-dss, soc2-type2 vendor fix
Memory taxonomy
- storage
- file
- retrieval
- similarity
- persistence
- long-term
- update
- append-only
- unit
- episode
- governance
- opaque
- conflict
- none
When to use
Optimised for: AI-native browsing + cross-page memory
Anti-fit: not for enterprise / managed-browser environments
Pros & cons
Pros
First search-engine-native browser agent — memory of past searches and tabs is part of the product premise.
Cons
Limited to what Perplexity sees; cross-browser portability is not on the roadmap.
Claims & capabilities
Perplexity raised $500M at $14B (May 2025), then $100M at $18B (late 2025). ARR ~$200M as of Feb 2026. Comet went free across all platforms March 2026.
Technical surface
- API surface
- not applicable — consumer browser
- Backend storage
- custom
- Deployment
- Managed (desktop Mac/Windows + iOS/Android apps)
- Embedding model
- locked
- Multi-tenancy
- hard-isolation
- MCP
- Comet Assistant supports MCP servers via comet://settings/connectors
- A2A
- searched not found
- OpenTelemetry
- searched not found
Compare Perplexity Comet with…
Alternatives to Perplexity Comet → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other browser-agent memory in the catalog, ranked by inbound references.
- Browserbase T1
Cloud browser infrastructure for AI agents. Headless Chromium sessions with persistent cookies, localStorage, session recording — agent workflows carry state across runs. Memory at the session/automation tier rather than conversational.
- Brave Leo T2
Privacy-focused integrated assistant. Memory is user-curated: explicit facts and preferences persist across all sessions, stored locally with no server retention. Agentic browsing experiment (Brave Nightly Dec 2025) takes multi-step actions inside sites referencing those preferences.
- Dia (Atlassian) T1
The Browser Company's AI-native browser; Atlassian acquired The Browser Company for $610M cash (announced 2025-09, closed 2025-10-21). Stores summaries and preferences locally; opt-in @history feature references up to 7 days of browsing as context. History/chats/bookmarks encrypted local-first.
- Fellou T1
Silicon Valley. Spatial agentic browser with explicit Agentic Memory layer learning from history and notes for instant recall of past research sessions. Operates on logged-in accounts (Quora, X, etc.); runs tasks while user is idle.
- Microsoft Edge Copilot Mode + Journeys (now Copilot in Edge) T1
Copilot Mode retired 2026-05-13; its features now ship as Copilot in Edge. Journeys clusters browsing history into topic cards on the new tab page (desktop, and US mobile); Copilot long-term memory can reference past chats and browsing history with user controls; agentic 'Browse with Copilot' (formerly Copilot Actions) for US Microsoft 365 Premium.
- Opera AI (formerly Aria) T2
Memory feature stores user-declared preferences and facts; injected into future prompts. Understands current tab content; manages open tabs contextually. Memory off by default, end-user controlled, stored alongside the prompt rather than the LLM.
Sources (66 cited facts, 8 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Conversation across pages + browser-history memory vendor
- What it does & what's distinct AI-native Chromium-based browser. Assistant operates across tabs and sessions; persisten… vendor
- Claims / benefits Perplexity raised $500M at $14B (May 2025), then $100M at $18B (late 2025). ARR ~$200M a… vendor
- Modalities text vendor
- Created 2025-07-09 (limited launch Windows/macOS); 2025-10-02 (public release free worldwide) third-party
- Mindshare HN launch thread + sustained 2025-26 security-vuln press cycle (Time, TechRadar, Cyberne… third-party
- Funding Perplexity $1.4B+ total raised; $21.2B valuation (Series E-6 early 2026) third-party
- Pricing Free (since Oct 2025); optional Comet Plus $5/mo; Perplexity Pro $20/mo / Max $200/mo third-party
- Compliance SOC 2 Type II; GDPR-compliant; HIPAA (Enterprise Pro/Max with BAA) vendor
- Data handling Opt-out available (Enterprise: never trains; free/non-enterprise: trains by default; opt… vendor
- Deployment Managed (desktop Mac/Windows + iOS/Android apps) vendor
- HQ US third-party
- Founders / pedigree Perplexity AI; co-founders Aravind Srinivas (IIT Madras + UC Berkeley PhD; ex-OpenAI/Goo… third-party
- Memory volume / scale internal — undisclosed vendor
- Backend storage custom vendor
- Multi-tenancy hard-isolation vendor
- Encryption at-rest + in-transit vendor
- Embedding model locked vendor
- Versioning immutable append-log vendor
- Tombstoning append-only no delete vendor
- Schema evolution free-form / no schema vendor
- Namespace primitives hierarchical vendor
- Contradiction handling always append (no resolution) vendor
- Forgetting policy none (permanent) vendor
- MCP support Comet Assistant supports MCP servers via comet://settings/connectors vendor
- Validated verticals consumer / individual (research / power users) vendor
- Time to running <10min (download Comet browser) vendor
- Anti-fit not for enterprise / managed-browser environments vendor
- Optimised for AI-native browsing + cross-page memory vendor
- Adjacent infrastructure self-contained Comet browser vendor
- Pros First search-engine-native browser agent — memory of past searches and tabs is part of t… vendor
- Cons Limited to what Perplexity sees; cross-browser portability is not on the roadmap. vendor
- Project & sources comet vendor
- obs-langsmith no vendor
- obs-opentelemetry no vendor
- obs-datadog no vendor
- obs-helicone no vendor
- obs-weave no vendor
- obs-langfuse no vendor
- obs-arize no vendor
- obs-custom Consumer browser product — no observability surface vendor
- cost-token-budget no vendor
- cost-prompt-caching no vendor
- cost-semantic-caching no vendor
- cost-batching no vendor
- cost-model-routing no vendor
- cost-streaming-only no vendor
- cost-observability-cost-attribution no vendor
- eval-langsmith-evals no vendor
- eval-braintrust no vendor
- eval-weights-and-biases-agent no vendor
- eval-helicone-evals no vendor
- eval-custom-test-harness no vendor
- eval-human-loop no vendor
- eval-production-traffic-replay no vendor
- cost-input-usd-per-mtok 0 vendor
- cost-output-usd-per-mtok 0 vendor
- cost-tier free vendor
- cost-pricing-model free-tier vendor
- cost-last-verified 2026-06-29 vendor
- adoption-accelerator ai-grant third-party
- architecture-deployment-locus computer-use vendor
- licensing-bucket commercial third-party
- positioning-platform-vs-product product vendor
- taxonomy-three-layer-rollup agent-infra repo
- compliance-certifications fedramp,gdpr,hipaa,iso27001,pci-dss,soc2-type2 vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)