Head to head

MiniMax Speech vs AssemblyAI

MiniMax Speech (MiniMax) and AssemblyAI (AssemblyAI) both sit in Audio. AssemblyAI is the cheaper entry point at Free tier · from $0.15/1M tok. MiniMax Speech shipped more tracked changes in the last 30 days (9 vs 8). Every value below comes from the latest crawl of the vendors' own pages.

AttributeMiniMax Speech

MiniMax

AssemblyAI

AssemblyAI

SegmentAudioAudio
Version2.8Universal-3.6 Pro Realtime
Entry costfrom $30/moFree tier · from $0.15/1M tok
Pricing tiersFree free · API per 1M chars $30Free Credits free · Universal-2 Async STT $0.15 · Universal-Streaming English / Multilingual $0.15 · Universal-3.5 Pro Async STT $0.21 · Universal-3.6 Pro Realtime STT $0.45 · Text-to-Speech (AssemblyAI-TTS-1) $15
Model stackMiniMax Music 3.0 · MiniMax Speech 2.8 · Speech 2.8AssemblyAI-TTS-1 · Claude · Claude 4.6 Sonnet · Claude 4.8 Opus · Gemini 2.5 Pro · Gemini 3.5 Flash · GPT-5.5 · Qwen3 Next 80B A3B · u3-rt-pro · Universal-2 · universal-3-6-pro · universal-3-pro · Universal-3.5 Pro · Universal-3.5 Pro Realtime · Universal-3.6 Pro Realtime · Universal-Streaming English · Universal-Streaming Multilingual
Context windown/an/a
Public API
Routes models
Changes / 30d98
OriginChinaGlobal
CapabilitiesVoice cloning, 30+ languages, Emotion control, Streaming, Speech Generation, Audio Generation, API, speech generationSpeaker diarization, Summarisation, Topic detection, PII redaction, LeMUR framework, Pre-recorded STT, Real-time STT, Voice Agent API
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