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Open Notebook vs Upstream
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | An open source implementation of NotebookLM with more flexibility and features. | AI-powered team email app that organizes, drafts, and follows up on messages automatically. | |
| Category | |||
| Developer | Open-notebook | Upstream Labs, Inc. | |
| Verified Status | No | No | |
| Last Updated | Aug 2026 | Aug 2026 | |
| Pricing | |||
| Pricing Model | Open Source | Freemium | |
| Free Plan | Yes | No | |
| Free Trial | — | No | |
| Open Source | Yes | No | |
| Capabilities | |||
| API Access | — | No | |
| Features | — | • Intelligent inbox organization into Needs Reply, VIP, and Noise • AI-powered draft replies matching the user's writing style • Automated, context-aware follow-up timing • Cross-platform access via web and iOS apps • Multi-user workspaces with shared inboxes and channels • Automatic filtering of cold emails and newsletters | |
| Tags | opennotebooksourceimplementationnotebooklmflexibility | emailinbox-managementai-draftingteam-collaborationproductivity | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 40 | 6 | |
| Quality Score | 54/100 | 32/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | www.open-notebook.ai | www.upstream.do | |
| Social Links | 1 linked | — | |
| Screenshots | No | No | |
| Reviews | |||
| Pros | • Free to use | • Free to use | |
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