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Best Summarization AI Tools

2 tools compared · 2026

2 ai summarization startups tracked, with the largest concentration in JP. Total tracked funding: $46.8M.

All (2) By country Top ranked By funding
Tracked
2
Total Raised
$46.8M
Countries
1
Active Deals
1

Top by score

View all 2 →
1 Notta Tokyo, JP $46.8M
79
2 Castmagic — —
57

Funding by year — AI Summarization

2022 → 2025
$6.3M
’22
$10.5M
’23
$15M
’24
$15M
’25

Top countries

By startup count

Stage breakdown

Latest round type
  • Series B 1

Recent rounds in AI Summarization

All rounds →
Date Startup Round Amount
Dec 2025 Notta Series B $15M
Nov 2024 Notta Series B $15M
May 2023 Notta Series A $10.5M
Mar 2022 Notta Seed $6.3M

All AI Summarization startups

Page 1

Notta

JP est. 2020

AI transcription, meeting notes, and voice intelligence

Raised
$46.8M
Stage
S-B
79

Castmagic

Supercharge your media with AI, transforming audio and video into 100+ content assets in minutes.

57