Speech-to-speech models

41 models listed.

Models

Models
Model	Maker	Kind	Released	Context	Input $/1M	Output $/1M
SeamlessM4TSeamless · Legacy · Open weights	Meta	Speech-to-speech	Aug 2023	—	—	—
SeamlessM4T v2 (with SeamlessStreaming)Seamless · Open weights	Meta	Speech-to-speech	Nov 2023	—	—	—
GLM-4-Voice-9BGLM-Voice · Legacy · Open weights	Z.ai (Zhipu AI)	Speech-to-speech	Oct 2024	—	—	—
Step-Audio-ChatStep-Audio · Legacy · Open weights	StepFun	Speech-to-speech	Feb 2025	—	—	—
Kimi-Audio-7B-InstructKimi-Audio · Open weights	Moonshot AI	Speech-to-speech	25 Apr 2025	—	—	—
Qwen-Omni-Turbo-RealtimeQwen Realtime · Deprecated	Alibaba Group	Speech-to-speech	8 May 2025	—	—	—
Gemini 2.5 Flash Live (Native Audio)Gemini Live · Legacy	Google DeepMind	Speech-to-speech	20 May 2025	131.1K	$0.50	$2.00
Step-Audio 2 miniStep-Audio · Legacy · Open weights	StepFun	Speech-to-speech	Aug 2025	—	—	—
GPT AudioGPT Audio · Deprecated	OpenAI	Speech-to-speech	28 Aug 2025	128K	$2.50	$10.00
GPT-RealtimeGPT Realtime · Deprecated	OpenAI	Speech-to-speech	28 Aug 2025	32K	$4.00	$16.00
LFM2-Audio-1.5BLFM Audio · Legacy · Open weights	Liquid AI	Speech-to-speech	28 Aug 2025	—	—	—
MiMo-Audio-7B-InstructMiMo Audio / TTS / ASR · Open weights	Xiaomi	Speech-to-speech	Sep 2025	—	—	—
Qwen3-Omni-Flash-RealtimeQwen Realtime · Legacy	Alibaba Group	Speech-to-speech	15 Sep 2025	—	—	—
GPT Audio miniGPT Audio · Deprecated	OpenAI	Speech-to-speech	6 Oct 2025	128K	$0.60	$2.40
GPT-Realtime miniGPT Realtime · Deprecated	OpenAI	Speech-to-speech	6 Oct 2025	32K	$0.60	$2.40
Step-Audio-R1Step-Audio · Legacy · Open weights	StepFun	Speech-to-speech	Nov 2025	—	—	—
Amazon Nova 2 SonicAmazon Nova Sonic	Amazon	Speech-to-speech	2 Dec 2025	—	—	—
LFM2.5-Audio-1.5BLFM Audio · Open weights	Liquid AI	Speech-to-speech	18 Dec 2025	—	—	—
GPT Audio 1.5GPT Audio	OpenAI	Speech-to-speech	23 Feb 2026	128K	$2.50	$10.00
GPT-Realtime-1.5GPT Realtime · Legacy	OpenAI	Speech-to-speech	23 Feb 2026	32K	$4.00	$16.00
Gemini 3.1 Flash LiveGemini Live · Legacy	Google DeepMind	Speech-to-speech	26 Mar 2026	131.1K	$0.75	$4.50
Qwen3.5-Omni-Plus-RealtimeQwen Realtime	Alibaba Group	Speech-to-speech	26 Mar 2026	—	—	—
Grok Voice Think Fast 1.0Grok Voice · Legacy	SpaceXAI (xAI)	Speech-to-speech	Apr 2026	—	—	—
MiMo-V2.5-ASRMiMo Audio / TTS / ASR · Open weights	Xiaomi	Speech-to-speech	Apr 2026	—	—	—
GPT-Realtime-2GPT Realtime · Legacy	OpenAI	Speech-to-speech	7 May 2026	128K	$4.00	$24.00
GPT-Realtime-TranslateGPT Realtime	OpenAI	Speech-to-speech	7 May 2026	16K	—	—
Gemini 3.5 Live TranslateGemini Live	Google DeepMind	Speech-to-speech	Jun 2026	131.1K	$3.50	$21.00
Grok Voice Think Fast 2.0Grok Voice	SpaceXAI (xAI)	Speech-to-speech	Jul 2026	—	—	—
GPT-Realtime-2.1GPT Realtime	OpenAI	Speech-to-speech	6 Jul 2026	128K	$4.00	$24.00
GPT-Realtime-2.1 miniGPT Realtime	OpenAI	Speech-to-speech	6 Jul 2026	128K	$0.60	$2.40
GPT-Live 1GPT-Live	OpenAI	Speech-to-speech	8 Jul 2026	—	—	—
Qwen-Audio-3.0-RealtimeQwen Realtime · Legacy	Alibaba Group	Speech-to-speech	14 Jul 2026	—	—	—
Gemini 3.8 LiveGemini Live	Google DeepMind	Speech-to-speech	15 Sep 2026	131.1K	$0.75	$4.50
Gemini 3.8 Live Extended ThinkingGemini Live	Google DeepMind	Speech-to-speech	15 Sep 2026	131.1K	$0.75	$4.50
Qwen-Audio-3.1-RealtimeQwen Realtime	Alibaba Group	Speech-to-speech	20 Sep 2026	—	—	—
Qwen3.8-Omni-Flash-RealtimeQwen Realtime	Alibaba Group	Speech-to-speech	21 Sep 2026	—	—	—
Eleven English v2 Voice ChangerElevenLabs Voice Changer	ElevenLabs	Speech-to-speech	—	—	—	—
Eleven Multilingual v2 Voice ChangerElevenLabs Voice Changer	ElevenLabs	Speech-to-speech	—	—	—	—
MiMo-V2.5-TTSMiMo Audio / TTS / ASR	Xiaomi	Speech-to-speech	—	—	—	—
StepAudio 2.5Step-Audio · Legacy	StepFun	Speech-to-speech	—	—	—	—
StepAudio 3 (preview)Step-Audio	StepFun	Speech-to-speech	—	—	—	—