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Comparison · Collab
Contractbook vs Tana
A side-by-side editorial comparison of Contractbook and Tana — release velocity, themes, recent moves, and the top alternatives to consider.
Contractbook vs Tana: at a glance
| Feature | Contractbook | Tana |
|---|---|---|
| Sector | Collab | Collab |
| Velocity score | 5.0 | 7.5 |
| Sparks · 30d | 0 | 2 |
| Top themes | contract-automation, ai-extraction, admin-controls, clm | ambient-ai, voice-agent, meeting-capture, note-taking |
| Last editorial update | 20d ago | 7d ago |
| Website | — | Visit → |
What is Contractbook?
Contractbook hands the AI's extraction prompts over to the customer
Contractbook publishes short, emoji-headed notes, most of them arriving in same-day batches. The August 3 batch covered admin permission maps across spaces, OTP two-factor at login, calculations inside forms, a rebuilt search results page, and a new model behind AI data extraction. This release opens the default data fields themselves: the prompts behind each AI-detected field can be rewritten or renamed per contract type.
What is Tana?
Tana races toward ambient AI assistant — voice commands now execute silently without interrupting you
Tana has shipped three major voice and agent capabilities in quick succession: a multitasking background agent that handles multiple requests simultaneously while you are in a meeting, auto-detection of unscheduled external meetings, and most recently a Hey Tana trigger that silently executes commands without entering a voice session at all. A native Calendar view also landed in the same release. The product has moved far past note-taking into ambient meeting assistant territory.
Contractbook vs Tana: editorial side-by-side
Contractbook
5.0COLLAB
Contractbook hands the AI's extraction prompts over to the customer
◆ Current state
Contractbook publishes short, emoji-headed notes, most of them arriving in same-day batches. The August 3 batch covered admin permission maps across spaces, OTP two-factor at login, calculations inside forms, a rebuilt search results page, and a new model behind AI data extraction. This release opens the default data fields themselves: the prompts behind each AI-detected field can be rewritten or renamed per contract type.
◆ Where it's heading
The AI extraction layer has been treated as a black box that Contractbook tunes and customers accept. Editable prompts break that — accuracy on a customer's own contract vocabulary becomes something they adjust rather than file a ticket about. It fits the wider pattern of the last few releases, where admin surfaces (space access maps, group permissions, contract-type management) are being built so companies can configure what used to be product defaults.
◆ Prediction
Once prompts are editable per contract type, per-field extraction quality becomes visible and arguable, so expect some form of confidence indicator or review step on extracted data next.
Tana
7.5COLLAB
Tana races toward ambient AI assistant — voice commands now execute silently without interrupting you
◆ Current state
Tana has shipped three major voice and agent capabilities in quick succession: a multitasking background agent that handles multiple requests simultaneously while you are in a meeting, auto-detection of unscheduled external meetings, and most recently a Hey Tana trigger that silently executes commands without entering a voice session at all. A native Calendar view also landed in the same release. The product has moved far past note-taking into ambient meeting assistant territory.
◆ Where it's heading
Every recent release adds ambient presence — Tana wants to run in the background of your workday, not only when you choose to open it. The combination of silent command execution, meeting capture, and calendar integration points toward a product that acts as a persistent AI colleague rather than a structured note-taking tool.
◆ Prediction
Tighter integration between calendar events and AI briefs is the likely next move, along with expansion of which external tools the background agent can act in. Whether Tana can hold the ambient-assistant position depends on how reliably the background execution performs across different meeting platforms.
Alternatives to Contractbook and Tana
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Contractbook or Tana.
SiYuan
SiYuan v3.8.4 beta cycle adds agent-controlled database fields, MiniMax image gen, and skill file management
GitHub
GitHub Copilot gets cost-aware inference tiers as enterprise AI tooling tightens across the platform.
Nextcloud
Nextcloud runs three LTS branches in parallel, shipping bug fixes and quiet performance wins.
Teable
Teable adds Composio integration and Scheduled Routines, pivoting from spreadsheet to agentic workflow platform.
Happeo
Happeo doubles down on SEO content to own intranet search terms for mid-market buyers.
See all Contractbook alternatives → · See all Tana alternatives →
Recent activity from Contractbook and Tana
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 8d agoTanaHey Tana just does it, a Calendar, and a new Home ⚡
- 19d agoTanaMultitasking voice agent, natural language search and daily briefs ⚡
- 23d agoContractbook✏️ Editable default data fields
- 26d agoTanaA clearer transcript, and proposals you can fix in place
- 28d agoTanaTana notices the meetings you didn't schedule
- 1mo agoTanaAI chat goes further before hitting usage limits
- 1mo agoContractbook🗺️ Spaces access
- 1mo agoContractbook🔎 Search results revamp
- 1mo agoContractbook✨ AI extraction model upgrade
- 1mo agoContractbook🖼️ AI upload: contract types
- 1mo agoContractbook🔑 OTP two-factor authentication
- 1mo agoTanaAsk the AI to pin things for you
Frequently asked questions
What is the difference between Contractbook and Tana?
They serve adjacent needs but don't currently overlap on shipped themes. Tana is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Contractbook better than Tana?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Tana is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Contractbook?
Top Contractbook alternatives in Collab are ranked by recent ship velocity. Browse the "Contractbook alternatives" section above for the current picks, or visit /alternatives/contractbook for the full list with editorial commentary on each.
What are the best alternatives to Tana?
Top Tana alternatives in Collab are ranked by recent ship velocity. Browse the "Tana alternatives" section above for the current picks, or visit /alternatives/tana for the full list with editorial commentary on each.