Alternatives
Best cheaper alternatives to Voice Agent API
Looking for a cheaper or smarter replacement for Voice Agent API by AssemblyAI? We compared every Audio model with verifiable pricing on real input/output cost, context window, intelligence and modalities. 18 options are meaningfully cheaper.
Category: Audio
Voxtral TTS100% CHEAPER
Mistral AI
Same category
$0 in · $16 out / 1M Chars 98%
xAI Text To Speech100% CHEAPER
xAI
Same category
$15 in · $0 out / 1M Characters 98%
Whisper Large v3 Turbo99% CHEAPER
Groq
Same category
$0.04 in · $0 out / 1 Hour Audio 98%
xAI Speech To Text REST98% CHEAPER
xAI
Same category
$0.1 in · $0 out / 1 Hour Audio 98%
Whisper V3 Large98% CHEAPER
Groq
Same category
$0.111 in · $0 out / 1 Hour Audio 98%
Universal-297% CHEAPER
AssemblyAI
Same category
$0.15 in · $0 out / 1 Hour Audio 98%
Universal-3 Pro95% CHEAPER
AssemblyAI
Same category
$0.21 in · $0 out / 1 Hour Audio 98%
Universal-3 Pro Streaming90% CHEAPER
AssemblyAI
Same category
$0.45 in · $0 out / 1 Hour Audio 98%
Nova-3 Monolingual Streaming100% CHEAPER
Deepgram
Same category
$0.0048 in · $0 out / 1 Minute Audio 96%
Nova-3 Multilingual Streaming100% CHEAPER
Deepgram
Same category
$0.0058 in · $0 out / 1 Minute Audio 96%
Flux English Streaming100% CHEAPER
Deepgram
Same category
$0.0065 in · $0 out / 1 Minute Audio 96%
Flux Multilingual Streaming100% CHEAPER
Deepgram
Same category
$0.0078 in · $0 out / 1 Minute Audio 96%
ElevenLabs Turbo v2.5100% CHEAPER
ElevenLabs
Same category
$0.3 in · $0 out / 1k Characters 90%
Suno v599% CHEAPER
Suno
Same category
$0.05 in · $0 out / 1 Song (Credit) 90%
Suno v3.598% CHEAPER
Suno
Same category
$0.1 in · $0 out / 1 Song 90%
Udio v1.598% CHEAPER
Udio
Same category
$0.1 in · $0 out / 1 Song (Credit) 90%
Qwen3 ASR Flash Realtime100% CHEAPER
Alibaba Cloud
Same category
$0.00009 in · $0.000047 out / second 78%
Nova 3100% CHEAPER
Deepgram
Same category
$0.0058 in · $0.0092 out / minute 78%
Costs are normalised to a blended 1M-token workload (or per-unit price for non-token models) using each model's latest verified pricing. Models with pricing under review are excluded from recommendations.