Enterprise and on-premise speech-to-text: security, SLA, and data residency

Enterprise speech-to-text selection should prioritize data governance, compliance, service-level guarantees, and total cost of ownership alongside transcription accuracy, as errors and fragmented multi-vendor pipelines can create downstream operational and legal risks. The article argues that cloud deployment can meet most enterprise control requirements through EU or US regional processing, DPAs and BAAs, account isolation, encryption, auditing, and Zero Data Retention, while literal on-premise or air-gapped systems remain necessary for organizations with strict physical-isolation mandates such as defense or intelligence operations. It presents Gladia’s cloud-only offering as providing SOC 2 Type II, ISO 27001, HIPAA, and GDPR support, a 99.9%+ uptime baseline, bundled audio-intelligence features on paid plans, and differing data-training policies by tier, with customer data not used for model training on Growth and Enterprise plans but potentially used on Starter. The piece also contrasts managed cloud APIs’ fast integration, scalability, and vendor-managed maintenance with the hardware, staffing, upgrade, and incident-response burdens of self-hosted models, while recommending Solaria-3 for selected European business audio and Solaria-1 for real-time, multilingual, and code-switching workloads.

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