Pianissimo: our new speech-to-text model
Why we are building Klang

AI for conversations that matter.

Klang makes your conversations searchable and usable - with transcriptions, summaries, and insights. Built in Europe, with trust at its core.

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Trusted daily by the institutions that keep Europe running
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Stockholm School of EconomicsStockholm School of Economics
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Malmo UniversityMalmo University
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Everything that matters started with a conversation.

Nothing said is ever lost.

We’re building a perfect memory of every conversation in your organisation, one that understands them better than anyone in the room.

An example of a shared conversation memory. Customer needs carry through from Anna’s conversations with you to team planning, technical review and the release decision. The conversations connect Anna, the customer, you, Erik, the developer, and Sara from the product team.

Explore your conversations. Let Klang find patterns across them.
Connect your agents through MCP, or build with our API.

Your daily summary

Get a daily briefing with patterns, trends, and insights from all your conversations.

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Weekly summary of sales calls
Feature requests from customer calls
Trending topics across this week’s meetings
Daily meeting summary
Objections for sales calls
Churn signals from customer meetings
Decisions and action items from team meetings
Daily meeting summary
Churn signals from customer meetings
Objections for sales calls
Decisions and action items from team meetings
Weekly summary of sales calls
Feature requests from customer calls
Insights from user interviews
Trending topics across this week’s meetings

Daily insights report for the product team

Bring Klang everywhere

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Available for iOS and Android

Connected to everything

Connect to any agent via MCP. Turn conversations into products with the API. Connect to any tool.

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+50 integrations

Every word, exactly as it was said

Transcribe with high precision: automatic error corrections, advanced editing, and reliable speaker identification in every meeting.

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Customer experience meeting - Jan 15, 26.mp...
✕Customer experience meeting - Jan 15, 26.mpeg☁
⌘A⚙⋮
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Speakers
Andreas Nilsson
Mattias Fält
Speaker 1
Sara Holm
+ Add speaker
Transcription
Andreas Nilsson
01:13
Hello Mattias!
Mattias Fält
01:13
Hello Andreas!
Andreas Nilsson
01:13
Welcome to four quick questions with Andreas!
Mattias Fält
01:13
Thanks, thanks!
Mattias Fält
01:13
Before that I was at univeristyuniversityuniversity. I mainly work with the AI parts here at the company.
Andreas Nilsson
01:13
Would you introduce yourself and your role at Klang?
Mattias Fält
01:13
Yes, my name is Mattias Fält. I am one of the co-founders here at Klang. I am primarily a developer by background.
Mattias Fält
01:13
Before that I was at the university. I mainly work with the AI parts here at the company.
💡Approach
Customer exp...
Dashboard, Flow
Date: January 15
Meeting summ...
The meeting focused on the dashboard, its ability to resolve action items, and the system.
Klang Agent
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Klang Pianissimo

An hour of audio.
One second.

We develop models that understand local dialects and respect sovereignty.

Pianissimo is our open speech-to-text model, fine-tuned for Swedish, with more languages coming soon.

Download the weights and run it on your own infrastructure, or use it through an API.

Explore Pianissimo

Data that remains yours

Klang operates entirely under European regulations and keeps your data strictly protected from external influence and extraterritorial laws.

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GDPR-compliant by design

Per-user encryption keys

Local data storage in Europe

Every conversation gets smarter with Klang.

Claims, witnesses, parties, searchable and traceable in one.
Verbatim material, audits that hold up over time.
Less write-up, more time on the case, citable from the first interview.
Themes and quotes surface as you go, without flattening the human moment.
More presence in the conversation, less time on case notes, confirmed in a pilot.
Länsförsäkringar
Insurance
Every claim becomes fully auditable.
Claims investigator
Claims handling
See Klang for insurance→

Enterprise

Deploy on your terms

Same Klang, your infrastructure rules. Pick the deployment that fits your compliance, your data residency, and your security team. Built in Europe, designed for trust.

Private cloud

A dedicated Klang environment, hosted in the EU and managed by us. Your data stays isolated. We handle updates, scaling, and uptime.

  • Single-tenant by defaultYour own database, storage, and compute. No shared workloads.
  • BYOK – bring your own keyManage your own encryption keys in your KMS. Rotate whenever you want.
  • Custom data residencyPick where in the EU data resides.
  • SSO, IdP, audit logs, data retentionIdP-based authentication, full audit logs, and configurable retention.
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On-premise

Klang inside your own infrastructure. Nothing leaves the network — not transcripts, not summaries, not the model. Built for the regulated.

  • Deploy on your infrastructureDocker images and Helm charts. OpenShift, EKS and bare metal.
  • Bring your own LLMRun your own language models in your infrastructure, independent of any specific vendor.
  • Runs fully offlineNo outbound calls required. Approved for air-gapped environments.
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Built for Europe. Made for now.

Klang is European AI. Built in Sweden and shaped by the same values that define the EU: openness, accountability, and trust. It respects your privacy and scales with your needs.

This matters now more than ever. AI must be built in a way that protects people's data and is grounded in trust from the start.

With Klang, you're choosing a different kind of innovation. Which we think is great. Necessary, even.