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LangChain vs Kasset

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

LangChain compared with Kasset
Detail LangChainKasset logo Kasset
What it doesThe open agent platform to own your intelligence AI note taker for online meetings and in-person conversations
StageEstablished MVP
Founded2023 Not given
Based inUS BE
Pricing modelNot given Paid
PricingDeveloper plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options. Kasset Core: €19/user/month or €180/user/year. Kasset Pro: €39/user/month or €384/user/year (includes one Plaud device on annual plan). Plaud devices can be purchased separately: Plaud Note Pro €189, Plaud NotePin S €159.
Key features
  • Agent observability with step-by-step tracing
  • Agent evaluation and scoring
  • Agent deployment infrastructure
  • Production monitoring with online evaluations
  • Autonomous agent improvement with Engine
  • Secure sandbox execution for agent-generated code
  • LLM Gateway for model call control
  • No-code agent builder Fleet
  • Open source frameworks for agent development
  • Records online meetings from your computer without a bot joining the call
  • Captures conversations on iPhone and with Plaud Note Pro and NotePin S devices
  • Transforms conversations into structured notes with decisions and next steps
  • Integration with Claude, ChatGPT and Copilot through MCP protocol
  • Data stored and processed in the EU by default
  • GDPR compliant with no model training on user conversations
  • 1,200 transcription minutes per month on Core, unlimited on Pro
What makes it different
  • Comprehensive platform covering the entire agent development lifecycle from building to monitoring
  • Open source frameworks with options from quick-start to low-level control
  • Built-in observability and evaluation capabilities integrated into the platform
  • Support for long-running autonomous agents with Deep Agents framework
  • Records meetings without a bot joining the call, keeping your conversations private
  • Single unified library for online meetings, phone calls and in-person conversations
  • Never trains models on your conversations
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)87 no change since last check11 no change since last check
Trust Flow (Majestic)565
Citation Flow (Majestic)6417
Referring domains (Majestic)285861866

6 details filled in for both companies.

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