Assemblyai Introduces Guardrails: New Product Category Consolidating Safety Features for Enhanced Transcription Security

Between the Oct 5, 2025 and Jan 1, 2026 captures of Assemblyai's pricing page, Pulse recorded 9 changes: Custom Formatting feature added at $0.03/hr - standardizes dates, phone numbers, emails in transcripts; Guardrails introduced as new product category - consolidates safety features: Profanity Filtering, PII Audio/Text Redaction, Content Moderation; Universal-Streaming Multilingual model added at $0.15/hr - supports real-time transcription in English, Spanish, French, German, Italian, Portuguese; Speaker Diarization add-on introduced at $0.02/hr - detects multiple speakers and segments transcript into utterances; LeMUR section rebranded as 'LLM Gateway' - functionality expanded to include voice-to-intelligence workflow; Speaker Identification feature added at $0.02/hr - identifies speakers by actual names or roles instead of generic labels; Translation feature added at $0.06/hr - automatically converts transcribed audio to another language; LLM Gateway expanded with new models: GPT-5.2, GPT-5.1, GPT-5, GPT-5-Mini, GPT-5 Nano, GPT 4.1, gpt-oss-20b, gpt-oss-120b, ChatGPT-4o, Gemini 3 Pro, Gemini 3 Flash, Gemini 2.5 Flash, Gemini 2.5 Pro, Claude 4.5 Sonnet, Claude 4.5 Haiku; Self-hosted deployments changed from 'coming soon' to available - EU region added alongside On-prem and VPC. Pulse files it as a packaging change (feature added, new plan, new add-on, plan renamed, feature change) with an upward direction. Pulse's latest capture (Aug 24, 2026) lists Voice Agent API at $4.5 per hour + $4.5 per hour, Universal-3 Pro at $0.21 per hour of audio, Universal-Streaming Multilingual at $0.15 per hour of audio, Universal-3 Pro Streaming at $0.45 per hour of audio and Universal-2 at $0.15 per hour of audio.

Assemblyai's previous recorded change was "Assemblyai Reduces Streaming Speech-to-Text Pricing by 68% from $0.47/hr to $0.15/hr, Enhancing Accessibility for Users" (Q2 2025). Before that Pulse recorded "Assemblyai Expands EU Data Residency to Full Availability Across All Plans, Enhancing Compliance and Flexibility for Users" (Q1 2025), "Assemblyai Enhances Speech-to-Text Accuracy to Over 93%" (Q4 2024) and "Assemblyai Restructures Pricing with Specific Claude Model Versions and Introduces $50 in Free Credits for New Users" (Q3 2024). Assemblyai has been tracked since 2023-11-14.

In the same window Deepgram also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.