aixblock
AIxBlock is an EU-backed sovereign AI data platform that provides enterprise training data for speech and LLMs, offering large-scale multilingual audio and text collection, transcription, annotation, an off-the-shelf audio library, and a self-hosted platform that ensures data never sits on AIxBlock servers.
aixblock is voice & speech software teams evaluate for voice & speech. Use this page to review pricing, integration signals, and the best alternatives before you commit.
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Quick Overview
Best for: Voice & Speech
What it does
Voice & Speech software for decision-makers comparing workflow fit and alternatives.
Best fit
Voice & Speech
Pricing snapshot
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aixblock
AIxBlock is an EU Innovation Fund–backed sovereign AI data platform focused on enterprise training data for speech and large language models. The company provides end-to-end services across modalities — from private real-world dataset licensing to large-scale custom collection, transcription, and annotation — and emphasizes trust built at the architecture level through data sovereignty and self-hosting. AIxBlock positions itself for regulated and data-sensitive industries, serving Fortune 100 and unicorn clients with seven-plus years of experience and large multilingual programs.
Decentralized AI development platform with compute, models, and human validators.
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Multilingual at Scale
Supports 100+ languages and uses a global workforce to deliver large-volume multilingual collection, transcription, and annotation programs quickly.
Self-Hosted Platform / Data Sovereignty
Full AI development platform that can be deployed on customer infrastructure or connected to client storage from day one so AIxBlock never retains copies of proprietary data.
Off-the-Shelf (OTS) Audio Library
Hundreds of thousands of hours of ready-to-license real-world audio, including call center recordings across US, India, Philippines accents and other languages.
Speech & Text Services
End-to-end speech services (collection, transcription, annotation, speaker timestamps) plus text/dialogue services (conversation annotation, intent/entity labeling, RLHF preference data and fine-tuning datasets).
Multi-Layer Contributor Verification
Three-layer contributor verification including KYC and biometric enrollment (Layer 1), session controls and liveness checks (Layer 2), and behavioral/anomaly intelligence (Layer 3).
Layered Quality Controls
Consensus mechanisms, multi-tier QC (QA → QC → QC2), linguist review, blind tests, and continuous monitoring to maintain >97–98% accuracy levels in delivered projects.
Delivery Governance and 24/7 Support
24/7 worker support to prevent mistakes and 24/7 client channels to apply feedback or spec changes immediately; dedicated local SMEs and localized training.
Enterprise Proven Track Record
Seven years of enterprise experience with large-scale projects delivered for Fortune 100 and unicorn clients; public metrics include 200K+ hours delivered and 7+ years experience.
Pricing
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Use Cases
Regulated Banking Data Transformation & PII/PCI Compliance
AIxBlock sourced and annotated multilingual banking chat data with country-specific handling for financial and personal identifiers, delivering 1,790 documents, 537K tokens across 7 variants with 98%+ accuracy and full compliance with country-specific ID and financial data formats.
Two-Party Conversational Voice AI Data for Call Centers
Delivered real-world call center conversational speech data with speaker-level timestamps, verbatim transcripts, and strict audio quality controls: 1,080 hours delivered in 14 weeks with 98%+ accuracy.
Multi-Locale High-Volume Speech Collection
Executed a multi-locale collection and transcription program with linguist review and coherence controls across 9 locales, delivered in 16 weeks (vs 32 planned) with >97% accuracy.
Integrations
Client Storage Connection
Platform can connect directly to customer storage from day one so collected, labeled, or validated data is delivered directly to client infrastructure with no copies retained by AIxBlock.
Benefits
Limitations
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Frequently Asked Questions
What does AIxBlock do as an enterprise training data partner?
How is AIxBlock different from a generic AI data labeling service?
Can AIxBlock support multilingual speech and audio data at scale?
Does AIxBlock provide RLHF and dialogue annotation for LLM training?
Is AIxBlock suitable for regulated or data-sensitive organizations?
When should a team choose AIxBlock instead of building training data in-house?
How do you ensure high-quality data when other vendors fail?
How do you handle complex guidelines across different languages?
What happens if we need to change feedback mid-project?
Getting Started
- 1 Step 1: Schedule a call with AIxBlock to discuss your requirements (team responds within 24 hours).
- 2 Step 2: Define scope, datasets, languages, and compliance requirements with the AIxBlock team; engage local SMEs and training as needed.
- 3 Step 3: Connect your storage or deploy the self-hosted platform so data flows directly to your environment; AIxBlock begins collection, labeling, or delivery without retaining copies.
Support
Sales / Scheduling
Schedule a call with AIxBlock; the team responds within 24 hours (promoted on the site as 'Schedule a Call' / 'Talk to Sales').
24/7 Client Channel
Around-the-clock channel for clients to apply feedback and spec changes immediately.
24/7 Worker Support
Continuous support for annotators and contributors to prevent mistakes and guideline drift.
Documentation / Local SME Training
Localized guidelines and training delivered by local SMEs or interpreters; project-specific training and enablement.
API
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