tts-bench — Speed

Rig: windows-5090 — AMD Ryzen 9 9950X3D 16-Core Processor (16C) · NVIDIA GeForce RTX 5090 32GB · 126 GB RAM · Windows 11

Default voice · 44 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
Kokoro	cuda	895ms	67ms	8.32×	103.68×	2.43 GB	925 MB	82M	Dec 2024
MeloTTS	cuda	1.61s	117ms	4.60×	60.41×	2.89 GB	1.16 GB	~52M	Feb 2024
Piper	cpu	160ms	107ms	38.94×	58.83×	470 MB	—	~25MB	Jan 2023
StyleTTS 2	cpu	1.74s	251ms	4.93×	33.76×	2.61 GB	—	~148M	Jun 2023
StyleTTS 2	cuda	1.76s	265ms	4.80×	32.15×	2.60 GB	1.49 GB	~148M	Jun 2023
OpenVoice v2	cuda	1.85s	361ms	3.65×	16.93×	2.65 GB	1.35 GB	~100M	Apr 2024
Kokoro	cpu	609ms	532ms	12.13×	14.38×	1.82 GB	—	82M	Dec 2024
Supertonic 3	cpu	744ms	741ms	9.86×	9.92×	570 MB	—	99M	May 2026
MeloTTS	cpu	1.88s	794ms	3.68×	9.40×	2.48 GB	—	~52M	Feb 2024
OmniVoice	cuda	1.12s	757ms	6.44×	9.30×	2.07 GB	2.16 GB	~1B	Mar 2026
Scylla's Band	cpu	1.62s	793ms	3.51×	7.46×	1.04 GB	—	~103M	Jul 2026
LongCat-AudioDiT 1B	cuda	1.76s	1.19s	5.10×	6.69×	2.22 GB	5.71 GB	1.42B	Mar 2026
KittenTTS Nano 0.1	cpu	1.22s	1.20s	6.40×	6.39×	338 MB	—	<100M	Aug 2025
F5-TTS v1	cuda	1.31s	845ms	3.47×	5.32×	2.67 GB	802 MB	330M	Oct 2024
Coqui XTTS-v2	cuda	2.05s	1.87s	3.63×	4.75×	2.10 GB	2.14 GB	750M	Oct 2023
Chatterbox Turbo	cuda	2.39s	1.62s	2.80×	4.28×	2.44 GB	3.01 GB	744M	Dec 2025
LongCat-AudioDiT 3.5B	cuda	2.27s	1.80s	3.41×	4.24×	2.22 GB	14.96 GB	3.83B	Mar 2026
OpenVoice v2	cpu	2.83s	1.48s	2.10×	4.10×	2.78 GB	—	~100M	Apr 2024
Pocket-TTS	cpu	147ms	123ms	3.99×	4.06×	1.95 GB	—	100M	Jan 2026
Soprano 1.1 80M	cuda	1.74s	1.77s	3.77×	3.76×	2.12 GB	326 MB	80M	Jan 2026
Qwen3-TTS 1.7B (CUDA-graph)	cuda	6.51s	1.60s	0.90×	3.76×	2.48 GB	4.89 GB	1.7B	Jan 2026
Echo-TTS	cuda	2.83s	2.15s	2.63×	3.44×	1.94 GB	9.38 GB	2.8B	Dec 2025
Soprano 1.1 80M	cpu	1.97s	2.00s	3.40×	3.40×	1.34 GB	—	80M	Jan 2026
NeuTTS Nano	cuda	678ms	258ms	2.19×	2.76×	3.24 GB	3.26 GB	229M	Dec 2025
DramaBox	cuda	5.14s	3.78s	1.93×	2.58×	2.36 GB	17.39 GB	3.3B	Apr 2026
VibeVoice Realtime 0.5B	cuda	3.80s	3.77s	2.24×	2.39×	1.88 GB	2.62 GB	0.5B	Dec 2025
Chatterbox	cuda	3.35s	2.61s	1.66×	2.24×	2.80 GB	3.24 GB	1.2B	Apr 2025
NeuTTS Nano	cpu	698ms	303ms	1.73×	2.00×	5.03 GB	—	229M	Dec 2025
Magpie-TTS	cuda	5.48s	4.48s	1.53×	1.93×	3.54 GB	5.60 GB	357M	Dec 2025
NeuTTS Air	cuda	1.15s	417ms	1.34×	1.62×	3.60 GB	3.26 GB	748M	Sep 2025
MOSS-TTS-Nano	cuda	5.83s	4.92s	1.36×	1.61×	2.42 GB	777 MB	100M	Apr 2026
VibeVoice 1.5B	cuda	4.99s	5.32s	1.44×	1.61×	2.04 GB	5.26 GB	1.5B	Aug 2025
VibeVoice 7B	cuda	5.67s	6.17s	1.39×	1.55×	2.05 GB	17.63 GB	7B	Sep 2025
MOSS-TTS v1.0	cuda	5.23s	4.74s	1.34×	1.48×	2.08 GB	22.83 GB	8B	Feb 2026
VoxCPM2 2B	cuda	5.36s	5.19s	1.35×	1.35×	6.18 GB	5.65 GB	2B	Apr 2026
IndexTTS-2	cpu	6.48s	5.42s	1.09×	1.31×	5.56 GB	—	1.5B	Jun 2025
NeuTTS Air	cpu	1.20s	471ms	1.16×	1.29×	5.37 GB	—	748M	Sep 2025
LFM2.5-Audio 1.5B	cpu	391ms	84ms	1.02×	1.26×	2.25 GB	—	1.5B	Dec 2025
MOSS-TTS-Nano	cpu	6.38s	5.64s	1.08×	1.21×	3.14 GB	—	100M	Apr 2026
LFM2.5-Audio 1.5B	cuda	410ms	91ms	0.99×	1.18×	2.25 GB	3.18 GB	1.5B	Dec 2025
IndexTTS-2	cuda	7.20s	6.03s	0.93×	1.11×	5.88 GB	7.60 GB	1.5B	Jun 2025
Parler-TTS Mini v1	cuda	8.29s	8.14s	0.96×	1.05×	3.19 GB	2.63 GB	878M	Jun 2024
MOSS-TTS v1.5	cuda	7.66s	6.86s	0.88×	0.99×	2.38 GB	22.83 GB	8B	May 2026
Fish Speech 1.5	cuda	8.53s	7.84s	0.81×	0.94×	3.83 GB	1.80 GB	~500M	Nov 2024
Coqui XTTS-v2	cpu	9.92s	9.73s	0.87×	0.88×	3.23 GB	—	750M	Oct 2023
Chatterbox Turbo	cpu	10.65s	9.92s	0.70×	0.73×	4.16 GB	—	744M	Dec 2025
Zonos v0.1	cuda	10.88s	10.38s	0.66×	0.71×	6.51 GB	4.48 GB	1.6B	Feb 2025
Qwen3-TTS 1.7B Base	cuda	10.77s	8.95s	0.55×	0.70×	2.42 GB	4.64 GB	1.7B	Jan 2026
VibeVoice Realtime 0.5B	cpu	14.49s	13.35s	0.63×	0.66×	5.89 GB	—	0.5B	Dec 2025
ZipVoice 123M (4/5 ok)	cuda	68.83s	86.51s	0.35×	0.60×	25.87 GB	53.16 GB	123M	Jun 2025
Maya1	cuda	16.57s	14.80s	0.53×	0.59×	2.42 GB	6.72 GB	3B	Oct 2025
Dia 1.6B-0626	cuda	25.42s	22.82s	0.46×	0.55×	4.42 GB	6.32 GB	1.6B	Jun 2025
Sesame CSM-1B	cuda	12.01s	12.45s	0.52×	0.54×	2.38 GB	3.51 GB	1B	Mar 2025
ZipVoice 123M (3/5 ok)	cpu	22.96s	13.44s	0.27×	0.45×	35.45 GB	—	123M	Jun 2025
VoxCPM2 2B	cpu	15.35s	14.85s	0.46×	0.45×	10.14 GB	—	2B	Apr 2026
Chatterbox	cpu	14.47s	14.10s	0.40×	0.43×	4.24 GB	—	1.2B	Apr 2025
OmniVoice	cpu	16.45s	15.98s	0.38×	0.39×	3.05 GB	—	~1B	Mar 2026
OuteTTS 1.0 1B	cuda	25.01s	24.27s	0.32×	0.33×	2.59 GB	3.67 GB	1B	Apr 2025
Miso TTS 8B	cuda	36.25s	32.11s	0.30×	0.31×	2.01 GB	16.53 GB	8.2B	May 2026
Magpie-TTS	cpu	37.17s	33.72s	0.29×	0.30×	6.10 GB	—	357M	Dec 2025
Mars5-TTS	cpu	31.19s	30.69s	0.22×	0.24×	4.03 GB	—	1.2B	Jun 2024
Mars5-TTS	cuda	31.20s	31.06s	0.23×	0.23×	2.25 GB	6.81 GB	1.2B	Jun 2024
VibeVoice 1.5B	cpu	39.59s	45.31s	0.19×	0.20×	11.62 GB	—	1.5B	Aug 2025
Qwen3-TTS 1.7B Base	cpu	34.81s	30.07s	0.18×	0.19×	10.40 GB	—	1.7B	Jan 2026
Fish Speech 1.5	cpu	45.73s	45.34s	0.17×	0.17×	4.46 GB	—	~500M	Nov 2024
Parler-TTS Mini v1	cpu	63.39s	62.77s	0.14×	0.14×	4.31 GB	—	878M	Jun 2024
Zonos v0.1	cpu	62.12s	60.57s	0.12×	0.12×	7.39 GB	—	1.6B	Feb 2025
Sesame CSM-1B	cpu	50.90s	57.54s	0.11×	0.12×	5.77 GB	—	1B	Mar 2025
F5-TTS v1	cpu	58.77s	60.21s	0.07×	0.07×	2.59 GB	—	330M	Oct 2024
Maya1 (2/4 ok)	cpu	66.31s	73.66s	0.07×	0.07×	7.33 GB	—	3B	Oct 2025
LuxTTS	cpu	LuxTTS install failed (piper-phonemize has no Windows wheels)

Cloning · 32 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
StyleTTS 2	cuda	1.66s	212ms	5.45×	41.66×	2.63 GB	1.52 GB	~148M	Jun 2023
StyleTTS 2	cpu	1.70s	218ms	5.27×	40.62×	2.63 GB	—	~148M	Jun 2023
OpenVoice v2	cuda	1.72s	361ms	3.61×	16.73×	2.65 GB	1.35 GB	~100M	Apr 2024
OmniVoice	cuda	1.20s	803ms	6.67×	9.75×	2.27 GB	2.42 GB	~1B	Mar 2026
MiraTTS	cuda	2.14s	1.46s	4.76×	7.01×	3.58 GB	1.28 GB	0.5B	Dec 2025
LongCat-AudioDiT 1B	cuda	1.66s	1.36s	4.72×	5.67×	2.36 GB	5.78 GB	1.42B	Mar 2026
F5-TTS v1	cuda	1.56s	1.06s	3.75×	5.50×	2.67 GB	883 MB	330M	Oct 2024
Coqui XTTS-v2	cuda	2.02s	1.51s	3.02×	4.76×	2.35 GB	2.10 GB	750M	Oct 2023
OpenVoice v2	cpu	2.60s	1.44s	2.23×	4.25×	2.78 GB	—	~100M	Apr 2024
Chatterbox Turbo	cuda	2.66s	1.59s	2.43×	4.15×	2.69 GB	3.33 GB	744M	Dec 2025
Pocket-TTS	cpu	136ms	124ms	4.11×	4.10×	2.29 GB	—	100M	Jan 2026
Qwen3-TTS 1.7B (CUDA-graph)	cuda	7.93s	1.57s	0.83×	3.66×	2.61 GB	4.89 GB	1.7B	Jan 2026
LongCat-AudioDiT 3.5B	cuda	2.59s	2.32s	3.13×	3.49×	2.26 GB	15.14 GB	3.83B	Mar 2026
Echo-TTS	cuda	2.84s	2.23s	2.62×	3.39×	1.94 GB	9.38 GB	2.8B	Dec 2025
Chatterbox	cuda	4.01s	2.88s	1.63×	2.33×	3.02 GB	3.63 GB	1.2B	Apr 2025
DramaBox	cuda	6.46s	4.99s	1.66×	2.14×	2.45 GB	17.39 GB	3.3B	Apr 2026
WavTTS 0.67B	cuda	3.16s	2.84s	1.85×	2.08×	2.00 GB	1.44 GB	0.67B	May 2026
NeuTTS Nano	cuda	854ms	331ms	1.60×	2.00×	2.59 GB	3.26 GB	229M	Dec 2025
MOSS-TTS-Nano	cuda	5.59s	4.87s	1.34×	1.66×	2.42 GB	910 MB	100M	Apr 2026
VibeVoice 7B	cuda	5.22s	4.86s	1.41×	1.58×	2.04 GB	17.63 GB	7B	Sep 2025
NeuTTS Nano	cpu	863ms	387ms	1.23×	1.58×	5.12 GB	—	229M	Dec 2025
IndexTTS-2	cpu	5.77s	4.87s	1.20×	1.47×	5.54 GB	—	1.5B	Jun 2025
MOSS-TTS v1.0	cuda	5.44s	4.73s	1.31×	1.44×	2.10 GB	22.83 GB	8B	Feb 2026
VoxCPM2 2B	cuda	6.36s	4.72s	0.96×	1.33×	2.49 GB	5.71 GB	2B	Apr 2026
NeuTTS Air	cuda	1.46s	492ms	0.88×	1.30×	2.96 GB	3.26 GB	748M	Sep 2025
IndexTTS-2	cuda	6.80s	5.66s	1.03×	1.26×	4.05 GB	7.71 GB	1.5B	Jun 2025
MOSS-TTS-Nano	cpu	5.69s	5.04s	1.16×	1.25×	3.05 GB	—	100M	Apr 2026
MOSS-TTS v1.5	cuda	5.88s	5.28s	1.14×	1.24×	2.36 GB	22.83 GB	8B	May 2026
NeuTTS Air	cpu	1.75s	568ms	0.75×	0.96×	5.47 GB	—	748M	Sep 2025
Fish Speech 1.5	cuda	8.04s	8.21s	0.85×	0.95×	3.82 GB	1.76 GB	~500M	Nov 2024
Coqui XTTS-v2	cpu	9.93s	8.76s	0.84×	0.85×	3.43 GB	—	750M	Oct 2023
Zonos v0.1	cuda	10.36s	9.85s	0.67×	0.73×	6.55 GB	4.45 GB	1.6B	Feb 2025
Chatterbox Turbo	cpu	10.84s	9.37s	0.68×	0.71×	4.39 GB	—	744M	Dec 2025
ZipVoice 123M (4/5 ok)	cuda	68.19s	105.99s	0.38×	0.60×	25.56 GB	53.24 GB	123M	Jun 2025
Sesame CSM-1B	cuda	13.21s	11.46s	0.47×	0.55×	2.47 GB	3.54 GB	1B	Mar 2025
Dia 1.6B-0626	cuda	14.04s	11.22s	0.33×	0.47×	8.53 GB	4.82 GB	1.6B	Jun 2025
ZipVoice 123M	cpu	50.03s	47.06s	0.30×	0.43×	39.66 GB	—	123M	Jun 2025
VoxCPM2 2B	cpu	18.12s	16.04s	0.34×	0.39×	7.53 GB	—	2B	Apr 2026
Chatterbox	cpu	17.39s	17.39s	0.36×	0.38×	4.72 GB	—	1.2B	Apr 2025
Miso TTS 8B	cuda	37.67s	32.57s	0.30×	0.32×	2.07 GB	16.55 GB	8.2B	May 2026
OuteTTS 1.0 1B	cuda	18.32s	17.44s	0.30×	0.30×	3.64 GB	3.56 GB	1B	Apr 2025
Fish Speech 1.5	cpu	37.45s	42.66s	0.18×	0.18×	4.43 GB	—	~500M	Nov 2024
OmniVoice	cpu	54.74s	53.28s	0.14×	0.14×	3.98 GB	—	~1B	Mar 2026
Zonos v0.1	cpu	61.60s	60.84s	0.12×	0.12×	8.57 GB	—	1.6B	Feb 2025
Sesame CSM-1B	cpu	48.90s	48.64s	0.12×	0.12×	6.32 GB	—	1B	Mar 2025
Mars5-TTS	cpu	41.89s	43.23s	0.08×	0.10×	2.24 GB	—	1.2B	Jun 2024
F5-TTS v1	cpu	71.35s	71.18s	0.08×	0.08×	2.71 GB	—	330M	Oct 2024
Mars5-TTS	cuda	41.12s	39.53s	0.09×	0.07×	2.23 GB	7.23 GB	1.2B	Jun 2024
LuxTTS	cpu	LuxTTS install failed (piper-phonemize has no Windows wheels)

Rig: linux-3090 — AMD Ryzen 9 5900XT 16-Core Processor · NVIDIA GeForce RTX 3090 24GB · 63 GB RAM · Linux 6.8.0-117-generic

Default voice · 50 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
Kokoro	cuda	491ms	73ms	15.15×	97.68×	1.85 GB	879 MB	82M	Dec 2024
MeloTTS	cuda	1.75s	129ms	4.63×	57.90×	2.35 GB	1.16 GB	~52M	Feb 2024
Piper	cpu	221ms	180ms	28.71×	37.14×	477 MB	—	~25MB	Jan 2023
StyleTTS 2	cuda	1.36s	253ms	6.36×	33.04×	2.30 GB	1.44 GB	~148M	Jun 2023
StyleTTS 2	cpu	3.77s	261ms	5.77×	32.12×	2.41 GB	—	~148M	Jun 2023
LuxTTS	cuda	391ms	215ms	13.18×	24.98×	2.39 GB	987 MB	123M	Jan 2026
OpenVoice v2	cuda	1.78s	363ms	3.48×	16.19×	2.95 GB	1.31 GB	~100M	Apr 2024
LongCat-AudioDiT 1B	cuda	1.43s	879ms	5.37×	8.65×	—	5.71 GB	1.42B	Mar 2026
MiraTTS	cuda	1.86s	1.23s	5.25×	8.44×	3.75 GB	1.28 GB	0.5B	Dec 2025
OmniVoice	cuda	1.31s	759ms	4.95×	8.35×	1.99 GB	2.11 GB	~1B	Mar 2026
Kokoro	cpu	1.37s	1.22s	5.80×	6.96×	1.65 GB	—	82M	Dec 2024
Scylla's Band	cpu	1.93s	995ms	2.99×	5.95×	1.03 GB	—	~103M	Jul 2026
Supertonic 3	cpu	1.28s	1.28s	5.87×	5.89×	612 MB	—	99M	May 2026
Coqui XTTS-v2	cuda	1.95s	1.76s	4.19×	4.88×	2.08 GB	2.12 GB	750M	Oct 2023
Soprano 1.1 80M	cuda	1.37s	1.39s	4.87×	4.86×	1.85 GB	325 MB	80M	Jan 2026
Chatterbox Turbo	cuda	1.88s	1.54s	3.68×	4.66×	2.12 GB	3.01 GB	744M	Dec 2025
MeloTTS	cpu	3.27s	2.05s	2.35×	4.45×	2.40 GB	—	~52M	Feb 2024
Pocket-TTS	cpu	163ms	148ms	4.07×	4.05×	1.75 GB	—	100M	Jan 2026
LongCat-AudioDiT 3.5B	cuda	2.38s	1.84s	3.01×	3.90×	—	14.96 GB	3.83B	Mar 2026
KittenTTS Nano 0.1	cpu	2.39s	2.07s	3.29×	3.72×	330 MB	—	<100M	Aug 2025
Higgs Audio v3 TTS	cuda	2.31s	2.36s	3.08×	3.13×	—	—	4B	Jun 2026
Qwen3-TTS 1.7B (CUDA-graph)	cuda	9.45s	2.01s	0.70×	3.04×	2.38 GB	4.89 GB	1.7B	Jan 2026
F5-TTS v1	cuda	2.01s	1.43s	2.22×	3.03×	2.27 GB	802 MB	330M	Oct 2024
Soprano 1.1 80M	cpu	2.17s	2.23s	3.13×	3.01×	1.33 GB	—	80M	Jan 2026
NeuTTS Nano	cuda	859ms	311ms	2.26×	3.00×	3.45 GB	3.25 GB	229M	Dec 2025
VibeVoice Realtime 0.5B	cuda	3.60s	3.28s	2.45×	2.76×	1.78 GB	2.62 GB	0.5B	Dec 2025
Chatterbox	cuda	3.10s	2.46s	1.92×	2.28×	2.07 GB	3.26 GB	1.2B	Apr 2025
OpenVoice v2	cpu	6.48s	3.06s	1.07×	2.15×	2.72 GB	—	~100M	Apr 2024
VoxCPM2 2B	cuda	3.27s	3.44s	2.11×	2.10×	3.39 GB	5.56 GB	2B	Apr 2026
MOSS-TTS-Nano	cuda	4.95s	3.56s	1.67×	2.08×	1.93 GB	971 MB	100M	Apr 2026
NeuTTS Nano	cpu	925ms	389ms	1.67×	2.03×	5.61 GB	—	229M	Dec 2025
Magpie-TTS	cuda	5.77s	4.40s	1.57×	2.02×	2.68 GB	6.56 GB	357M	Dec 2025
CosyVoice 3 0.5B	cuda	4.53s	3.11s	1.46×	1.99×	4.65 GB	4.33 GB	0.5B	Dec 2025
VibeVoice 1.5B	cuda	4.17s	4.69s	1.53×	1.83×	1.97 GB	5.26 GB	1.5B	Aug 2025
MOSS-TTS v1.5	cuda	4.30s	4.01s	1.51×	1.83×	2.25 GB	22.69 GB	8B	May 2026
MOSS-TTS v1.0	cuda	4.47s	3.87s	1.54×	1.81×	2.12 GB	22.69 GB	8B	Feb 2026
Echo-TTS	cuda	4.94s	4.32s	1.51×	1.73×	1.94 GB	9.14 GB	2.8B	Dec 2025
LuxTTS	cpu	1.94s	1.90s	1.68×	1.71×	2.30 GB	—	123M	Jan 2026
NeuTTS Air	cuda	1.59s	478ms	1.29×	1.68×	3.88 GB	3.25 GB	748M	Sep 2025
NeuTTS Air	cpu	1.60s	554ms	1.11×	1.35×	6.01 GB	—	748M	Sep 2025
Step-Audio-EditX	cuda	6.30s	5.45s	1.13×	1.34×	2.89 GB	6.10 GB	3B	Oct 2025
DramaBox	cuda	11.30s	7.97s	1.00×	1.21×	3.28 GB	17.38 GB	3.3B	Apr 2026
IndexTTS-2	cpu	6.72s	5.67s	0.97×	1.20×	5.67 GB	—	1.5B	Jun 2025
MOSS-TTS-Nano	cpu	6.91s	6.09s	1.07×	1.17×	1.30 GB	—	100M	Apr 2026
Fish Speech 1.5	cuda	7.12s	6.05s	0.96×	1.11×	2.29 GB	1.76 GB	~500M	Nov 2024
IndexTTS-2	cuda	7.25s	5.95s	0.91×	1.08×	2.77 GB	7.57 GB	1.5B	Jun 2025
Orpheus-TTS 3B	cuda	931ms	361ms	1.01×	1.01×	2.02 GB	—	3.3B	Mar 2025
Zonos v0.1	cuda	7.92s	7.22s	0.88×	1.01×	2.74 GB	4.47 GB	1.6B	Feb 2025
Qwen3-TTS 1.7B Base	cuda	8.19s	7.01s	0.74×	0.88×	2.21 GB	4.64 GB	1.7B	Jan 2026
dots.tts (soar)	cuda	8.61s	8.26s	0.77×	0.81×	—	5.50 GB	2B	Jun 2026
Coqui XTTS-v2	cpu	11.98s	11.11s	0.79×	0.80×	3.15 GB	—	750M	Oct 2023
Sesame CSM-1B	cuda	9.30s	8.66s	0.71×	0.76×	2.08 GB	3.51 GB	1B	Mar 2025
MetaVoice-1B	cuda	8.19s	7.48s	0.66×	0.76×	—	7.98 GB	1.2B	Feb 2024
Maya1	cuda	12.34s	12.18s	0.67×	0.74×	2.18 GB	6.75 GB	3B	Oct 2025
Chatterbox Turbo	cpu	11.03s	10.58s	0.66×	0.69×	3.87 GB	—	744M	Dec 2025
VibeVoice 7B	cuda	13.23s	13.57s	0.59×	0.63×	5.54 GB	11.11 GB	7B	Sep 2025
Dia 1.6B-0626	cuda	16.31s	13.83s	0.49×	0.61×	2.19 GB	4.58 GB	1.6B	Jun 2025
VibeVoice Realtime 0.5B	cpu	17.64s	15.86s	0.57×	0.55×	6.51 GB	—	0.5B	Dec 2025
ZipVoice 123M (4/5 ok)	cpu	15.01s	12.19s	0.43×	0.53×	53.97 GB	—	123M	Jun 2025
OuteTTS 1.0 1B	cuda	18.60s	18.21s	0.43×	0.43×	2.41 GB	3.58 GB	1B	Apr 2025
OmniVoice	cpu	15.83s	15.35s	0.40×	0.41×	2.99 GB	—	~1B	Mar 2026
Chatterbox	cpu	17.21s	16.53s	0.36×	0.37×	4.16 GB	—	1.2B	Apr 2025
Miso TTS 8B	cuda	26.02s	22.24s	0.34×	0.35×	2.00 GB	16.34 GB	8.2B	May 2026
Magpie-TTS	cpu	40.47s	39.78s	0.25×	0.26×	13.55 GB	—	357M	Dec 2025
VoxCPM2 2B	cpu	29.43s	29.16s	0.24×	0.24×	6.44 GB	—	2B	Apr 2026
Fish Speech S2-Pro	cuda	39.76s	39.69s	0.18×	0.18×	3.82 GB	19.93 GB	4B	Mar 2026
VibeVoice 1.5B	cpu	43.47s	52.25s	0.17×	0.17×	11.26 GB	—	1.5B	Aug 2025
Qwen3-TTS 1.7B Base	cpu	38.52s	35.33s	0.15×	0.17×	9.12 GB	—	1.7B	Jan 2026
Zonos v0.1	cpu	62.09s	62.23s	0.12×	0.12×	4.86 GB	—	1.6B	Feb 2025
Sesame CSM-1B	cpu	52.98s	57.59s	0.12×	0.12×	5.95 GB	—	1B	Mar 2025
Mars5-TTS	cuda	60.14s	58.72s	0.13×	0.12×	2.60 GB	6.80 GB	1.2B	Jun 2024
Mars5-TTS	cpu	59.06s	58.01s	0.12×	0.12×	2.64 GB	—	1.2B	Jun 2024
Fish Speech 1.5	cpu	76.66s	70.52s	0.10×	0.10×	4.58 GB	—	~500M	Nov 2024
F5-TTS v1	cpu	53.94s	55.46s	0.08×	0.08×	2.58 GB	—	330M	Oct 2024
Maya1 (2/4 ok)	cpu	62.52s	59.40s	0.08×	0.08×	7.41 GB	—	3B	Oct 2025
OuteTTS 1.0 1B (2/5 ok)	cpu	96.51s	93.24s	0.05×	0.05×	4.20 GB	—	1B	Apr 2025
ZipVoice 123M	cuda	Skipped — out of GPU memory (model exceeds this GPU's VRAM)

Cloning · 40 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
StyleTTS 2	cuda	1.28s	253ms	6.98×	35.30×	2.32 GB	1.44 GB	~148M	Jun 2023
StyleTTS 2	cpu	1.30s	256ms	6.96×	34.91×	2.32 GB	—	~148M	Jun 2023
LuxTTS	cuda	436ms	241ms	18.76×	34.86×	2.35 GB	1.13 GB	123M	Jan 2026
OpenVoice v2	cuda	1.74s	362ms	3.54×	16.40×	2.93 GB	1.29 GB	~100M	Apr 2024
MiraTTS	cuda	1.85s	1.23s	5.29×	8.41×	3.76 GB	1.28 GB	0.5B	Dec 2025
MioTTS 0.6B	cuda	1.32s	1.28s	7.75×	8.27×	—	—	0.6B	Feb 2026
MioTTS 0.1B	cuda	1.11s	1.06s	6.29×	6.42×	—	—	0.1B	Feb 2026
LongCat-AudioDiT 1B	cuda	1.65s	1.34s	4.42×	5.39×	—	5.78 GB	1.42B	Mar 2026
OmniVoice	cuda	2.01s	1.49s	3.80×	4.99×	2.05 GB	2.33 GB	~1B	Mar 2026
Coqui XTTS-v2	cuda	1.90s	1.53s	3.63×	4.77×	2.26 GB	2.08 GB	750M	Oct 2023
Chatterbox Turbo	cuda	2.12s	1.61s	3.10×	4.28×	2.34 GB	3.28 GB	744M	Dec 2025
Pocket-TTS	cpu	151ms	151ms	3.94×	3.86×	1.69 GB	—	100M	Jan 2026
F5-TTS v1	cuda	2.49s	1.84s	2.33×	3.17×	2.61 GB	882 MB	330M	Oct 2024
Qwen3-TTS 1.7B (CUDA-graph)	cuda	51.60s	19.43s	2.86×	3.07×	2.33 GB	4.95 GB	1.7B	Jan 2026
Higgs Audio v3 TTS	cuda	2.37s	2.27s	3.09×	3.07×	—	—	4B	Jun 2026
NeuTTS Nano	cuda	952ms	357ms	1.85×	2.64×	3.45 GB	3.25 GB	229M	Dec 2025
LuxTTS	cpu	2.92s	2.84s	2.14×	2.20×	2.62 GB	—	123M	Jan 2026
Chatterbox	cuda	3.90s	3.11s	1.71×	2.16×	2.20 GB	3.66 GB	1.2B	Apr 2025
MOSS-TTS-Nano	cuda	4.61s	3.22s	1.54×	2.14×	1.91 GB	870 MB	100M	Apr 2026
OpenVoice v2	cpu	4.35s	3.12s	1.37×	2.12×	2.60 GB	—	~100M	Apr 2024
VoxCPM2 2B	cuda	4.24s	3.10s	1.44×	2.05×	3.37 GB	5.82 GB	2B	Apr 2026
Zonos2	cuda	4.85s	3.40s	1.32×	2.05×	3.05 GB	18.70 GB	8B (MoE, ~900M active)	Jun 2026
LongCat-AudioDiT 3.5B	cuda	4.22s	3.92s	1.84×	1.98×	—	15.14 GB	3.83B	Mar 2026
CosyVoice 3 0.5B	cuda	4.43s	3.14s	1.43×	1.94×	4.66 GB	4.33 GB	0.5B	Dec 2025
MOSS-TTS v1.0	cuda	4.46s	3.94s	1.59×	1.81×	2.13 GB	22.69 GB	8B	Feb 2026
MOSS-TTS v1.5	cuda	4.58s	3.87s	1.60×	1.78×	2.10 GB	22.69 GB	8B	May 2026
Echo-TTS	cuda	4.92s	4.34s	1.52×	1.72×	1.92 GB	9.14 GB	2.8B	Dec 2025
NeuTTS Nano	cpu	1.01s	419ms	1.47×	1.68×	5.55 GB	—	229M	Dec 2025
NeuTTS Air	cuda	1.64s	478ms	1.16×	1.36×	3.88 GB	3.25 GB	748M	Sep 2025
NeuTTS Air	cpu	1.68s	587ms	1.07×	1.33×	5.98 GB	—	748M	Sep 2025
IndexTTS-2	cpu	6.72s	5.86s	0.97×	1.15×	2.52 GB	—	1.5B	Jun 2025
Step-Audio-EditX	cuda	7.24s	5.82s	0.98×	1.14×	2.89 GB	6.14 GB	3B	Oct 2025
Fish Speech 1.5	cuda	7.46s	6.31s	0.99×	1.13×	2.31 GB	1.76 GB	~500M	Nov 2024
MOSS-TTS-Nano	cpu	6.85s	6.63s	1.00×	1.11×	1.31 GB	—	100M	Apr 2026
IndexTTS-2	cuda	7.72s	6.49s	0.90×	1.07×	2.80 GB	7.70 GB	1.5B	Jun 2025
Zonos v0.1	cuda	8.02s	7.15s	0.87×	1.01×	2.75 GB	4.47 GB	1.6B	Feb 2025
DramaBox	cuda	12.69s	11.54s	0.84×	0.92×	2.63 GB	17.39 GB	3.3B	Apr 2026
Coqui XTTS-v2	cpu	11.08s	10.05s	0.77×	0.79×	3.09 GB	—	750M	Oct 2023
MetaVoice-1B	cuda	8.17s	7.48s	0.67×	0.76×	—	7.98 GB	1.2B	Feb 2024
Sesame CSM-1B	cuda	9.14s	8.23s	0.62×	0.74×	2.24 GB	3.54 GB	1B	Mar 2025
Chatterbox Turbo	cpu	10.02s	10.36s	0.63×	0.67×	4.08 GB	—	744M	Dec 2025
VibeVoice 7B	cuda	12.35s	12.16s	0.58×	0.62×	2.19 GB	11.11 GB	7B	Sep 2025
Dia 1.6B-0626	cuda	12.83s	9.94s	0.42×	0.54×	2.11 GB	4.66 GB	1.6B	Jun 2025
ZipVoice 123M (4/5 ok)	cpu	15.97s	12.22s	0.41×	0.52×	51.51 GB	—	123M	Jun 2025
dots.tts (soar)	cuda	14.02s	12.84s	0.43×	0.51×	—	5.92 GB	2B	Jun 2026
OuteTTS 1.0 1B	cuda	13.52s	13.38s	0.40×	0.40×	3.14 GB	3.45 GB	1B	Apr 2025
Miso TTS 8B	cuda	43.25s	31.89s	0.34×	0.34×	1.83 GB	16.56 GB	8.2B	May 2026
Chatterbox	cpu	21.31s	20.76s	0.32×	0.33×	4.50 GB	—	1.2B	Apr 2025
VoxCPM2 2B	cpu	34.02s	33.01s	0.17×	0.18×	6.54 GB	—	2B	Apr 2026
Fish Speech S2-Pro	cuda	44.18s	44.08s	0.18×	0.18×	3.82 GB	19.93 GB	4B	Mar 2026
OmniVoice	cpu	49.48s	47.44s	0.15×	0.16×	4.12 GB	—	~1B	Mar 2026
Zonos v0.1	cpu	62.39s	62.04s	0.12×	0.12×	4.76 GB	—	1.6B	Feb 2025
Sesame CSM-1B	cpu	50.29s	51.41s	0.11×	0.12×	6.38 GB	—	1B	Mar 2025
Fish Speech 1.5	cpu	79.88s	72.02s	0.10×	0.10×	4.54 GB	—	~500M	Nov 2024
F5-TTS v1	cpu	75.56s	76.09s	0.08×	0.08×	2.63 GB	—	330M	Oct 2024
Mars5-TTS	cuda	87.24s	87.80s	0.05×	0.05×	2.60 GB	7.24 GB	1.2B	Jun 2024
Mars5-TTS	cpu	93.19s	85.83s	0.06×	0.05×	2.59 GB	—	1.2B	Jun 2024
ZipVoice 123M	cuda	Skipped — out of GPU memory (model exceeds this GPU's VRAM)

Rig: mac-m4 — Apple M4 (10C) · Apple M4 GPU (MPS) · 16 GB RAM · Darwin 25.5.0

Default voice · 29 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
Piper	cpu	228ms	208ms	27.47×	32.14×	561 MB	—	~25MB	Jan 2023
Kokoro	mps	920ms	489ms	7.58×	15.28×	1.26 GB	—	82M	Dec 2024
MeloTTS	mps	1.88s	512ms	4.09×	15.13×	1.55 GB	—	~52M	Feb 2024
Kokoro (MLX) (4/5 ok)	mps	2.10s	514ms	3.90×	14.88×	774 MB	—	82M	Dec 2024
Kokoro	cpu	914ms	749ms	7.78×	10.04×	2.49 GB	—	82M	Dec 2024
KittenTTS Nano 0.1	cpu	994ms	1.01s	8.10×	8.08×	385 MB	—	<100M	Aug 2025
Pocket-TTS	cpu	89ms	44ms	7.50×	7.82×	1.69 GB	—	100M	Jan 2026
Soprano 1.1 80M	cpu	912ms	906ms	7.15×	7.15×	1.18 GB	—	80M	Jan 2026
MeloTTS	cpu	2.35s	1.27s	3.20×	6.48×	3.30 GB	—	~52M	Feb 2024
Soprano 1.1 80M	mps	2.48s	1.30s	2.76×	5.16×	1.64 GB	—	80M	Jan 2026
Supertonic 3	cpu	1.86s	1.57s	4.18×	4.81×	968 MB	—	99M	May 2026
StyleTTS 2	cpu	5.94s	2.21s	2.30×	3.82×	3.13 GB	—	~148M	Jun 2023
NeuTTS Nano	cpu	740ms	266ms	2.30×	3.10×	5.83 GB	—	229M	Dec 2025
NeuTTS Nano	mps	1.45s	464ms	1.81×	2.96×	1.28 GB	—	229M	Dec 2025
NeuTTS Air	cpu	1.38s	358ms	1.55×	2.16×	6.12 GB	—	748M	Sep 2025
NeuTTS Air	mps	2.32s	583ms	1.30×	2.08×	1.55 GB	—	748M	Sep 2025
Coqui XTTS-v2	mps	17.81s	7.82s	1.14×	1.70×	1.84 GB	—	750M	Oct 2023
Chatterbox Turbo	mps	9.95s	5.07s	0.75×	1.44×	2.30 GB	—	744M	Dec 2025
Coqui XTTS-v2	cpu	6.01s	5.48s	1.41×	1.43×	4.61 GB	—	750M	Oct 2023
Voxtral 4B TTS	mps	6.45s	6.37s	1.12×	1.19×	1.93 GB	—	4B	Nov 2025
Chatterbox Turbo	cpu	6.53s	6.45s	1.07×	1.14×	4.80 GB	—	744M	Dec 2025
VibeVoice Realtime 0.5B	mps	9.56s	8.30s	0.98×	1.13×	838 MB	—	0.5B	Dec 2025
OmniVoice	mps	8.05s	12.20s	0.81×	0.79×	1.38 GB	—	~1B	Mar 2026
OmniVoice	cpu	12.84s	11.28s	0.49×	0.57×	3.59 GB	—	~1B	Mar 2026
Magpie-TTS	cpu	25.55s	26.19s	0.40×	0.40×	4.69 GB	—	357M	Dec 2025
Parler-TTS Mini v1	cpu	25.23s	22.58s	0.32×	0.39×	8.60 GB	—	878M	Jun 2024
Chatterbox	cpu	18.77s	17.08s	0.33×	0.37×	4.83 GB	—	1.2B	Apr 2025
VibeVoice Realtime 0.5B	cpu	25.45s	25.10s	0.38×	0.36×	3.17 GB	—	0.5B	Dec 2025
Chatterbox	mps	25.95s	31.35s	0.27×	0.29×	698 MB	—	1.2B	Apr 2025
Qwen3-TTS 1.7B Base	cpu	24.52s	25.11s	0.25×	0.24×	3.93 GB	—	1.7B	Jan 2026
Sesame CSM-1B	cpu	38.67s	31.30s	0.19×	0.24×	6.08 GB	—	1B	Mar 2025
VoxCPM2 2B	cpu	28.36s	52.13s	0.29×	0.17×	144 MB	—	2B	Apr 2026
IndexTTS-2	cpu	80.00s	48.40s	0.08×	0.14×	318 MB	—	1.5B	Jun 2025
F5-TTS v1	mps	45.43s	45.54s	0.09×	0.09×	1.29 GB	—	330M	Oct 2024
F5-TTS v1	cpu	47.26s	47.15s	0.09×	0.09×	3.31 GB	—	330M	Oct 2024
VibeVoice 1.5B (2/4 ok)	cpu	71.46s	70.84s	0.05×	0.06×	9.01 GB	—	1.5B	Aug 2025
OuteTTS 1.0 1B (2/5 ok)	mps	121.18s	93.13s	0.04×	0.05×	733 MB	—	1B	Apr 2025
OuteTTS 1.0 1B (2/5 ok)	cpu	100.71s	95.88s	0.05×	0.05×	7.38 GB	—	1B	Apr 2025
LuxTTS	cpu	LuxTTS install failed (piper-phonemize has no Windows wheels)
LuxTTS	mps	LuxTTS install failed (piper-phonemize has no Windows wheels)
ZipVoice 123M	cpu	Reference wav missing for voice cloning
ZipVoice 123M	mps	Reference wav missing for voice cloning
Mars5-TTS	cpu	Timed out after 10 min — model too slow at this prompt length
VibeVoice 1.5B	mps	Skipped — out of memory (model exceeds available RAM)

Cloning · 20 models · sorted fastest first · full report ↗

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
Pocket-TTS	cpu	46ms	44ms	7.91×	8.01×	2.46 GB	—	100M	Jan 2026
OpenVoice v2	mps	2.88s	1.01s	2.26×	5.91×	—	—	~100M	Apr 2024
NeuTTS Nano	cpu	785ms	281ms	2.19×	3.01×	5.83 GB	—	229M	Dec 2025
NeuTTS Nano	mps	1.54s	493ms	1.78×	2.87×	1.38 GB	—	229M	Dec 2025
OpenVoice v2	cpu	6.54s	2.40s	1.24×	2.49×	—	—	~100M	Apr 2024
NeuTTS Air	cpu	1.50s	359ms	1.57×	2.14×	4.96 GB	—	748M	Sep 2025
NeuTTS Air	mps	2.35s	562ms	1.26×	2.10×	1.56 GB	—	748M	Sep 2025
MOSS-TTS-Nano	cpu	5.74s	3.66s	1.28×	1.93×	—	—	100M	Apr 2026
Coqui XTTS-v2	mps	12.06s	6.80s	1.04×	1.59×	1.87 GB	—	750M	Oct 2023
Coqui XTTS-v2	cpu	5.67s	6.73s	1.35×	1.36×	4.37 GB	—	750M	Oct 2023
Chatterbox Turbo	mps	8.12s	14.00s	0.80×	1.10×	2.57 GB	—	744M	Dec 2025
Chatterbox Turbo	cpu	6.62s	6.39s	0.98×	1.03×	4.92 GB	—	744M	Dec 2025
MOSS-TTS-Nano	mps	25.59s	18.57s	0.29×	0.40×	—	—	100M	Apr 2026
Fish Speech 1.5	cpu	18.30s	18.36s	0.33×	0.34×	—	—	~500M	Nov 2024
Chatterbox	mps	36.45s	34.12s	0.25×	0.33×	1000 MB	—	1.2B	Apr 2025
Chatterbox	cpu	24.68s	22.69s	0.30×	0.32×	5.55 GB	—	1.2B	Apr 2025
Fish Speech 1.5	mps	21.55s	21.91s	0.29×	0.31×	—	—	~500M	Nov 2024
Qwen3-TTS 1.7B Base	cpu	26.94s	22.01s	0.22×	0.26×	3.66 GB	—	1.7B	Jan 2026
Sesame CSM-1B	cpu	32.32s	23.57s	0.18×	0.24×	6.44 GB	—	1B	Mar 2025
Zonos v0.1	cpu	52.99s	51.88s	0.15×	0.15×	—	—	1.6B	Feb 2025
IndexTTS-2	cpu	79.63s	44.94s	0.08×	0.15×	266 MB	—	1.5B	Jun 2025
ZipVoice 123M (4/5 ok)	cpu	33.60s	37.61s	0.13×	0.10×	2.13 GB	—	123M	Jun 2025
F5-TTS v1	mps	44.88s	45.26s	0.10×	0.09×	1.29 GB	—	330M	Oct 2024
F5-TTS v1	cpu	47.24s	47.06s	0.09×	0.09×	2.32 GB	—	330M	Oct 2024
OuteTTS 1.0 1B (2/5 ok)	cpu	72.93s	71.42s	0.04×	0.04×	6.83 GB	—	1B	Apr 2025
OuteTTS 1.0 1B (2/5 ok)	mps	76.37s	72.18s	0.04×	0.04×	974 MB	—	1B	Apr 2025
LuxTTS	cpu	LuxTTS install failed (piper-phonemize has no Windows wheels)
LuxTTS	mps	LuxTTS install failed (piper-phonemize has no Windows wheels)
VoxCPM2 2B	cpu	Timed out after 10 min — model too slow at this prompt length
Mars5-TTS	cpu	Timed out after 10 min — model too slow at this prompt length
ZipVoice 123M	mps	Skipped — out of memory (model exceeds available RAM)
OmniVoice	cpu	39.56s	—	0.18×	—	4.53 GB	—	~1B	Mar 2026
OmniVoice (4/5 ok)	mps	26.08s	—	0.21×	—	1008 MB	—	~1B	Mar 2026