Expanding Access: Slam-1 and LeMUR Now Available in the EU
Our commitment to serving customers globally means ensuring they can access AssemblyAI's speech AI capabilities while meeting their regional data requirements. Today, we're announcing that both Slam-1 (currently in beta) and LeMUR are now available through our EU API endpoint, providing complete data residency compliance for our European customers.



Our commitment to serving customers globally means ensuring they can access AssemblyAI's speech AI capabilities while meeting their regional data requirements. Today, we're announcing that both Slam-1 (currently in beta) and LeMUR are now available through our EU API endpoint, providing complete data residency compliance for our European customers.
This expansion builds on strong momentum in the European market, where AssemblyAI has just been recognized as a High Performer in G2's EMEA Regional Voice Recognition Grid®—a designation reserved for solutions with high customer satisfaction scores in the region.
Meeting European data requirements without compromise
Our High Performer status in G2's EMEA analysis reflects what European customers value most: exceptional accuracy and reliability in speech recognition technology. Our European customers have been equally clear about their need to leverage this technology while ensuring data residency meets their regulatory compliance and operational requirements.
With today's announcement of Slam-1 in the EU, these European customers now gain access to our most advanced, highest-accuracy model hosted in-region and optimized for EU English traffic patterns, now with complete EU data residency. Whether you're processing sensitive customer calls, medical consultations, or confidential business meetings, your audio data remains within EU boundaries while benefiting from:
- Production-ready Speech Language Model delivering superior accuracy for industry-specific terminology
- Optimized performance for EU English traffic patterns
- Seamless API integration using familiar endpoints and structures
Alongside Slam-1, LeMUR's availability in the EU means these European customers can now apply advanced LLMs for powerful audio intelligence capabilities to hours of audio content in a single API call, all while ensuring their data remains within EU boundaries for complete GDPR compliance. Access the full range of LeMUR features including:
- Automatically summarize meetings, extract key insights, and identify critical information in a single API call
- Ask sophisticated questions about your audio content and receive contextual answers powered by state-of-the-art LLMs
- Create tailored LLM tasks for your specific industry needs, from sentiment analysis to entity detection
- Choose from Claude 3 Haiku, Claude 3.5 Sonnet, and Claude 3.7 Sonnet models to optimize for your use case and budget
Simple migration, immediate benefits
For existing EU customers, migrating to these new capabilities is straightforward. Both Slam-1 and LeMUR maintain the same API structure and functionality as their global counterparts, requiring minimal changes to existing implementations.
New EU customers can now access AssemblyAI's complete speech AI platform while ensuring their data handling meets European regulatory standards from day one.
The only difference here is adding the eu.
subdomain to the base URL. Everything else in your request code stays the same:
# US endpoint (default)
url = "https://api.assemblyai.com"
# EU endpoint - just change the base URL
url = "https://api.eu.assemblyai.com"
Getting started
Slam-1 (beta) and LeMUR are available now through our EU API endpoint. Simply set the base URL for your requests as https://api.eu.assemblyai.com
, using your current API key. Existing customers can begin using these capabilities immediately, while new customers can start with our free credits to explore how these tools fit their specific use cases.
Explore the documentation: Review our comprehensive Getting Started Guide and technical documentation for detailed implementation information.
AssemblyAI provides speech-to-text, streaming speech-to-text, and speech understanding capabilities through simple APIs. Our models power everything from meeting transcriptions to voice agents, helping developers build applications that understand and act on spoken content.
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