Kagi Assistant vs Lumo Comparison
| Feature | ||
|---|---|---|
| Overview | ||
| Rating | 7.2 | 7.5 |
| Pricing |
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| Free tier | Paid onlyShow detailsHide detailsNo standing free tier for Assistant. The Trial plan offers 100 searches and 100 Assistant interactions before requiring a paid plan, and still requires creating an account. | Limited free tierShow detailsHide detailsLimited Max model usage, limited messages and chat history, limited image generations, and 1 Project; the exact numeric caps are not published |
| Established | 2024 | 2025 |
| Platforms | ||
| Privacy | ||
| Account required | Required | Optional |
| IP anonymization | Undisclosed | Undisclosed |
| Storage model | Server-encrypted | Zero-access encrypted |
| Retention | 24 hours by defaultShow detailsHide detailsConversation threads are automatically deleted after one day by default; a thread can also be deleted immediately by hand. A thread a user reports (for example, to flag a bug) is retained for 30 days before deletion for debugging purposes. Requests to the model backend are not saved or tied to a customer account by default, though Kagi notes they may be retained briefly as part of request debugging. On the model-provider side, retention varies by provider and is documented separately — see the Privacy Architecture section. | Erased at guest-session end by defaultShow detailsHide detailsTwo distinct behaviours. In guest mode the conversation is erased when the session ends and nothing is persisted at all. With an account, chat history is saved only if you choose to keep it, and it is stored under zero-access encryption — Conversation Keys wrapped by a Master Key wrapped by your own PGP keypair, which is unlocked by your password. The operator states it stores no metadata such as timestamps, IP addresses, or chat context alongside either. |
| Provider training | Contractual no-train | Undisclosed |
| Jurisdiction | United States (Delaware)Show detailsHide detailsKagi Inc. is a Delaware Public Benefit Corporation headquartered in San Francisco, California. | SwitzerlandShow detailsHide detailsLegal entity Proton AG, registered at Route de la Galaise 32, 1228 Plan-les-Ouates, Geneva, Switzerland, per the product's own privacy policy. |
| Hardware attestation | Not specified | Not specified |
| Source code | Closed source | Fully open source |
| Telemetry | No telemetry | On unless you opt out |
| Past data breach | No | No |
| Features | ||
| Models offered | Claude Opus 5.5Claude 4.5 SonnetClaude 4.5 HaikuClaude Fable 5.1ChatGPT / GPT 5 chatGPT 6 AstraGPT 6 SolGPT 6 LunaGPT 5.6 TerraGPT OSS 120BGemini 2.5 ProGemini 3.1 Pro PreviewGemini 3.8 FlashGemini Flash LiteGemmaMistral Large 3Mistral Medium 3.5Mistral SmallMistral MagistralMistral PixtralDeepSeek V4 ProDeepSeek V4.1 FlashQwen 3.8 MaxQwen 27BGrok 4.7Muse Spark 1.3Kimi K3Kimi K2.7MiniMax M3GLMNous Hermes-4 | Lumo 2.0 LiteLumo 2.0 MaxApertus 1.5 |
| Multi-model switching | Yes | Yes |
| Web search | Yes | Yes |
| File upload | Yes | Yes |
| Underlying product | Not specified | Not specified |
