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Upstream vs Whisper API
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | AI-powered team email app that organizes, drafts, and follows up on messages automatically. | Whisper API is a Transcription API Powered By OpenAI Whisper model. Get 5 free transcriptions daily (no duration limits) with robust control over the model's parameters like size, temperature, beam size and more. | |
| Category | |||
| Developer | Upstream Labs, Inc. | Whisper-api | |
| Verified Status | No | No | |
| Last Updated | Aug 2026 | Aug 2026 | |
| Pricing | |||
| Pricing Model | Freemium | Free | |
| Free Plan | No | Yes | |
| Free Trial | No | — | |
| Open Source | No | 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 | • Transcription API built on OpenAI Whisper, supporting 98+ languages and files up to 10GB • Choice of Whisper model size to trade off speed vs. accuracy • Accepts direct file uploads or remote URLs; processes both audio and video • No-code drag-and-drop dashboard alongside the developer API • Export formats: JSON, plain text, VTT, DOCX, PDF • Files auto-deleted after 24 hours; 5 free credits then pay-as-you-go pricing | |
| Tags | emailinbox-managementai-draftingteam-collaborationproductivity | whispermodelsizetranscriptionpoweredopenai | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 6 | 63 | |
| Quality Score | 32/100 | 58/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | www.upstream.do | whisper-api.com | |
| Screenshots | No | No | |
| Reviews | |||
| Pros | • Free to use | • Free to use | |
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Both tools are closely matched on rating — the better fit depends on your specific needs. See the full feature and pricing comparison above.
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