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August 12, 2026

Best STT Models for Voice AI Agents in 2026: Deepgram, AssemblyAI, Whisper, Gladia, Gnani Ranked

STTSpeech to TextDeepgramAssemblyAIWhisperGladiaVoice AI

The five best STT models for voice AI agents in 2026 ranked by latency, accuracy, and Indian language support: Deepgram Nova-3 (best for real-time), AssemblyAI Universal-3.5 (best for intelligence), Whisper (best multilingual batch), Gladia (best code-switching), and Gnani Prisma v2.5 (best for Indian telephony).