Criterion Fireflies.ai Microsoft 365 Copilot
CategoryAI Productivity ToolsEnterprise Automation
In one sentenceAn AI notetaker that records, transcribes and summarises meetings in 100+ languages, with an API on every plan.Microsoft's AI assistant inside Word, Excel, PowerPoint, Outlook and Teams, grounded in your organisation's work data.
Problem it solvesMeeting knowledge is lost or hard to search, and manual note-taking is inconsistent.Knowledge workers spend much of their day on email, meetings and documents that could be drafted or summarised automatically.
Free planYesYes
Developer APIYes — docsYes — docs
Open sourceNoNo
PlatformsWeb, Windows, macOS, iOS, Android, Chrome extensionWindows, macOS, Web, iOS, Android, Microsoft Teams
Pricing (summary)Free plan with unlimited transcription and 400 minutes of storage per team. Pro is $18 per seat monthly or $10 annually; Business $29 monthly or $19 annually. Enterprise is $39 per seat per month, annual only.
Checked 2026-10-19		Copilot Chat is included with eligible Microsoft 365 plans. Microsoft 365 Copilot for enterprise is $30 per user/month paid yearly or $31.50 paid monthly (annual commitment). For small businesses, the Copilot Business add-on is $21 per user/month annually ($18 promotional first year through 31 Dec 2026) or $25.20 monthly, and bundles with Business Standard or Premium are available.
Checked 2026-10-19
Strengths
  • API available on all plans
  • Broad language support
  • Competitive annual pricing
  • Deep integration with Microsoft 365
  • Enterprise security and permissions
  • Copilot Chat at no extra cost
Limitations
  • Free storage limited to 400 minutes per team
  • Free AI summaries limited
  • Enterprise is annual only
  • Requires a qualifying Microsoft 365 licence
  • Add-on cost per user
  • Trials require a credit card and convert to paid