Productivity comparison
Gamma vs Slack Ai
AI-generated presentations, decks, microsites, and narrative documents · Team conversation summaries, channel catch-up, and workplace knowledge retrieval
| Decision point | Gamma | Slack AI |
|---|---|---|
| Best for | AI-generated presentations, decks, microsites, and narrative documents | Team conversation summaries, channel catch-up, and workplace knowledge retrieval |
| Category | Productivity | Productivity |
| Price | Free + paid plans | Paid add-on / plan availability varies |
| AIToolsEssentials score | 4.3/5 | 4.1/5 |
Evidence status
free: $0; 400 one-time signup credits that do not refill; up to 10 slides per prompt; PDF, PPTX, PNG, and Google Slides export. plus: $9/seat/month equivalent, $108/seat billed annually; 1,000 monthly credits, up to 100 slides per prompt, branding removal, and advanced image models. pro: $18/seat/month equivalent, $216/seat billed annually; 4,000 monthly credits, premium image models, custom branding/fonts, analytics, 10 custom domains, API access, and workspace templates. ultra: $90/seat/month equivalent, $1,080/seat billed annually; 20,000 monthly credits, advanced text/image/video models, 100 custom domains, and early feature access. team: $20/seat/month, $240/seat billed annually; 6,000 monthly credits per seat, centralized billing, company theme, shared folders, admin controls, and advanced data controls. business: $40/seat/month, $480/seat billed annually; 10,000 monthly credits per seat, SSO, advanced models, and advanced data controls. enterprise: Custom annual agreement.
Official sources checked 2026-08-25Open verification questions
- The official page was extracted in its annual-billing state. Monthly individual-plan checkout prices were not independently captured and should not be inferred from the annual discount.
- Gamma's terms grant a broad training license where training controls are unavailable or left enabled; publications should distinguish individual plans from Team/Business plans.
The repository's 400-credit Free allowance remains supported, but those are one-time starter credits rather than a monthly refill. The repository's Plus $10 and Pro $20 figures do not match the current official annual-pricing view, which shows $9 and $18 monthly equivalents. Paid credits roll over only up to twice the monthly allocation; additional credits can be purchased. Individual Free, Plus, Pro, and Ultra workspaces allow Gamma to use content for AI-feature improvement by default, but users can opt out in account settings. Team and Business workspace content is automatically excluded from training, with the control locked. Gamma does not claim ownership of user content. Users grant Gamma a license needed to operate and provide the service. The pricing page also states that content remains the user's after cancellation or downgrade. Public API documentation is available at https://developers.gamma.app/; the pricing page says API access is available on paid plans and consumes AI credits.
Free: $0. Pro: $7.25/user/month when paid annually or $8.75 when paid monthly. Business+: $15/user/month annually or $18 monthly. Enterprise+ uses sales-based pricing. The pricing page labels Free and Pro as including Basic AI and Business+ as including Advanced AI; the exact feature set depends on plan and admin settings. The page was also displaying a 50%-off-for-three-months promotion for eligible Pro and Business+ purchases.
Official sources checked 2026-08-25Open verification questions
- Slack's AI Principles page says AI features are included in paid plans, while the current pricing page labels the Free plan as having Basic AI. The exact production availability and limits of Free-plan AI could not be reconciled from the official pages.
- Slack does not publish a single numeric usage allowance for all AI features; some capabilities state that plan limits apply.
- No explicit, AI-output-specific ownership statement was located in the checked official Slack sources.
Official pages list capabilities including Slackbot, conversation and thread summaries, daily recaps, AI search, file summaries, workflow generation, huddle notes, translation, and enterprise search, with availability varying by plan. Slack states that Customer Data never leaves Slack-controlled infrastructure and is never used to train LLMs. Third-party LLMs are hosted within Slack's cloud environment; providers do not have access to Customer Data. AI only uses content the requesting member is authorized to access. Conversation summaries and search answers are ephemeral; recaps are stored for 90 days. Workflow-generated summaries stored in messages or canvases follow the organization's retention settings. Admins can disable or restrict native AI features.
How to decide
Match each platform to your actual workflow constraints. Run one real workflow in each finalist before paying.
Quick recommendation
Use the trial checklist on each review page and the free scorecard to record time-to-result, corrections needed, and monthly cost at your expected volume before committing to a plan.