Gradium TTS Beta
Leader Proprietary · Gradium
76.8
/100
Gradium TTS Beta is a proprietary text-to-speech (TTS) API from Gradium, measured by two independent benchmarks: Coval and Speko.
Voice agents Coval Speko
Access
Proprietary TTS models
88 text-to-speech (TTS) models, ranked from the highest benchmark score to the lowest, out of 100.
Data checked on September 30, 2026 · updated after each benchmark capture
Soniox TTS Real-Time v2
Leader Proprietary · Soniox
73.7
/100
Soniox TTS Real-Time v2 is a proprietary text-to-speech (TTS) API from Soniox, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Japanese
+12
Inworld Realtime TTS-2
Strong Proprietary · Inworld
68.8
/100
Inworld Realtime TTS-2 is a proprietary text-to-speech (TTS) API from Inworld, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+15
Inworld Realtime TTS-2 Flash
Strong Proprietary · Inworld
68.4
/100
Inworld Realtime TTS-2 Flash is a proprietary text-to-speech (TTS) API from Inworld, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+13
Gradium TTS (Aug 2026)
Strong Proprietary · Gradium
59.6
/100
Gradium TTS (Aug 2026) is a proprietary text-to-speech (TTS) API from Gradium, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+7
Palabra TTS v1
Strong Proprietary · Palabra
58.6
/100
Palabra TTS v1 is a proprietary text-to-speech (TTS) API from Palabra, measured by two independent benchmarks: Coval and Speko.
Voice agents Coval Speko
Cartesia Sonic 3.5
Strong Proprietary · Cartesia
58.5
/100
Cartesia Sonic 3.5 is a proprietary text-to-speech (TTS) API from Cartesia, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+18
Soniox TTS RT v1
Strong Proprietary · Soniox
57.2
/100
Soniox TTS RT v1 is a proprietary text-to-speech (TTS) API from Soniox, measured by two independent benchmarks: Coval and Speko.
Spanish German French Coval
+1
ElevenLabs Eleven v3 Conversational
Strong Proprietary · ElevenLabs
56.8
/100
ElevenLabs Eleven v3 Conversational is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+16
ElevenLabs Flash v2.5
Strong Proprietary · ElevenLabs
56.1
/100
ElevenLabs Flash v2.5 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+8
SpeechifyAI Simba 3.2
Contender Proprietary · Speechify
51.6
/100
SpeechifyAI Simba 3.2 is a proprietary text-to-speech (TTS) API from Speechify, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Knowledge sharing Assistants Entertainment Customer service
+3
Deepgram Flux TTS
Contender Proprietary · Deepgram
49.6
/100
Deepgram Flux TTS is a proprietary text-to-speech (TTS) API from Deepgram, measured by two independent benchmarks: Coval and Speko.
Coval Speko
Rime Coda
Contender Proprietary · Rime
47.1
/100
Rime Coda is a proprietary text-to-speech (TTS) API from Rime, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Korean Artificial Analysis Coval Speko
Fluxions vui
Contender Proprietary · Fluxions
47
/100
Fluxions vui is a proprietary text-to-speech (TTS) API from Fluxions, measured by one independent benchmark, Coval.
Voice agents Coval
Cartesia Sonic 3.6
Contender Proprietary · Cartesia
45.9
/100
Cartesia Sonic 3.6 is a proprietary text-to-speech (TTS) API from Cartesia, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+12
Rime Mist v3
Contender Proprietary · Rime
44.5
/100
Rime Mist v3 is a proprietary text-to-speech (TTS) API from Rime, measured by two independent benchmarks: Coval and Speko.
Coval Speko
SpaceXAI Grok TTS
Contender Proprietary · xAI
43
/100
SpaceXAI Grok TTS is a proprietary text-to-speech (TTS) API from xAI, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+14
Deepgram Aura 2
Contender Proprietary · Deepgram
42.8
/100
Deepgram Aura 2 is a proprietary text-to-speech (TTS) API from Deepgram, measured by two independent benchmarks: Coval and Speko.
Spanish German French Coval
+1
Smallest.ai Lightning V3.1 Pro (Jul 2026)
Contender Proprietary · Smallest.ai
41
/100
Smallest.ai Lightning V3.1 Pro (Jul 2026) is a proprietary text-to-speech (TTS) API from Smallest.ai, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Knowledge sharing Assistants Entertainment Customer service
+3
Deepdub Phantom Z 3.4 conversational
Listed Proprietary · Deepdub
33.9
/100
Deepdub Phantom Z 3.4 conversational is a proprietary text-to-speech (TTS) API from Deepdub, measured by one independent benchmark, Coval.
Coval
Fish Audio S2.1 Pro
Listed Proprietary · Fish Audio
33.2
/100
Fish Audio S2.1 Pro is a proprietary text-to-speech (TTS) API from Fish Audio, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
Spanish German French Portuguese
+12
Google Gemini 3.8 Flash TTS
Listed Proprietary · Google
29.7
/100
Google Gemini 3.8 Flash TTS is a proprietary text-to-speech (TTS) API from Google, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+11
Google Gemini 3.8 Flash-Lite TTS
Listed Proprietary · Google
29.4
/100
Google Gemini 3.8 Flash-Lite TTS is a proprietary text-to-speech (TTS) API from Google, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+11
Fish Audio OpenAudio S1
Listed Proprietary · Fish Audio
28.7
/100
Fish Audio OpenAudio S1 is a proprietary text-to-speech (TTS) API from Fish Audio, measured by two independent benchmarks: Artificial Analysis and Coval.
Spanish German French Portuguese
+5
Murf AI Falcon 2
Listed Proprietary · Murf AI
28.4
/100
Murf AI Falcon 2 is a proprietary text-to-speech (TTS) API from Murf AI, measured by two independent benchmarks: Artificial Analysis and Coval.
Knowledge sharing Assistants Entertainment Customer service
+2
ElevenLabs Eleven v4
Listed Proprietary · ElevenLabs
28.3
/100
ElevenLabs Eleven v4 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+11
Google Gemini 3.1 Flash TTS
Listed Proprietary · Google
26.2
/100
Google Gemini 3.1 Flash TTS is a proprietary text-to-speech (TTS) API from Google, measured by two independent benchmarks: Artificial Analysis and Speko.
Japanese Chinese Hindi Korean
+11
SpeechifyAI Simba 3.0
Listed Proprietary · Speechify
26
/100
SpeechifyAI Simba 3.0 is a proprietary text-to-speech (TTS) API from Speechify, measured by two independent benchmarks: Artificial Analysis and Coval.
Spanish German French Portuguese
+5
Google Chirp 3: HD
Listed Proprietary · Google
18.5
/100
Google Chirp 3: HD is a proprietary text-to-speech (TTS) API from Google, measured by two independent benchmarks: Artificial Analysis and Coval.
Japanese Hindi Tamil Telugu
+3
Deepgram Aura 2 En
Listed Proprietary · Deepgram
14.4
/100
Deepgram Aura 2 En is a proprietary text-to-speech (TTS) API from Deepgram, served by Cloudflare, measured by one independent benchmark, Coval.
Coval
OpenAI GPT-4o mini TTS
Listed Proprietary · OpenAI
14.4
/100
OpenAI GPT-4o mini TTS is a proprietary text-to-speech (TTS) API from OpenAI, measured by two independent benchmarks: Coval and Speko.
Spanish German French Japanese
+7
Smallest.ai Lightning v3.1
Listed Proprietary · Smallest.ai
14
/100
Smallest.ai Lightning v3.1 is a proprietary text-to-speech (TTS) API from Smallest.ai, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Hindi
+2
Bland Speech v3
Listed Proprietary · Bland AI
13.4
/100
Bland Speech v3 is a proprietary text-to-speech (TTS) API from Bland AI, measured by two independent benchmarks: Artificial Analysis and Speko.
Artificial Analysis Speko
Cartesia Sonic 3
Listed Proprietary · Cartesia
11.8
/100
Cartesia Sonic 3 is a proprietary text-to-speech (TTS) API from Cartesia, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+7
MiniMax Speech 2.8 HD
Listed Proprietary · MiniMax
11.4
/100
MiniMax Speech 2.8 HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+13
Alibaba Qwen-Audio-3.0-TTS-Plus
Listed Proprietary · Alibaba (Qwen)
11.1
/100
Alibaba Qwen-Audio-3.0-TTS-Plus is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.
Spanish German French Portuguese
+9
V
VUI Labs Luna TTS
Listed Proprietary · VUI Labs
11
/100
VUI Labs Luna TTS is a proprietary text-to-speech (TTS) API from VUI Labs, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Entertainment Customer service
+1
ElevenLabs Turbo v2.5
Listed Proprietary · ElevenLabs
10.4
/100
ElevenLabs Turbo v2.5 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+7
async Flash v1.5
Listed Proprietary · Async
9.7
/100
async Flash v1.5 is a proprietary text-to-speech (TTS) API from Async, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Customer service Artificial Analysis
MiniMax Speech 2.6 HD
Listed Proprietary · MiniMax
9.7
/100
MiniMax Speech 2.6 HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.
Japanese Chinese Korean Thai
+4
ElevenLabs Multilingual v2
Listed Proprietary · ElevenLabs
9.3
/100
ElevenLabs Multilingual v2 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+6
MiniMax Speech 2.8 Turbo
Listed Proprietary · MiniMax
9.3
/100
MiniMax Speech 2.8 Turbo is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Portuguese
+11
StepFun StepAudio 2.5 TTS (Aug 2026)
Listed Proprietary · StepFun
9.3
/100
StepFun StepAudio 2.5 TTS (Aug 2026) is a proprietary text-to-speech (TTS) API from StepFun, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Entertainment Customer service
+1
Alibaba Qwen3 TTS Flash
Listed Proprietary · Alibaba (Qwen)
9
/100
Alibaba Qwen3 TTS Flash is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Artificial Analysis
+1
MiniMax Speech 2.6 Turbo
Listed Proprietary · MiniMax
8.6
/100
MiniMax Speech 2.6 Turbo is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.
Knowledge sharing Entertainment Customer service Artificial Analysis
+1
ElevenLabs Eleven v3
Listed Proprietary · ElevenLabs
8.5
/100
ElevenLabs Eleven v3 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by one independent benchmark, Artificial Analysis.
Spanish German French Portuguese
+11
Microsoft Azure HD 2.5
Listed Proprietary · Microsoft
8.5
/100
Microsoft Azure HD 2.5 is a proprietary text-to-speech (TTS) API from Microsoft, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Entertainment Customer service
+1
StepFun Step TTS 2 (Mar 2026)
Listed Proprietary · StepFun
8.3
/100
StepFun Step TTS 2 (Mar 2026) is a proprietary text-to-speech (TTS) API from StepFun, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Entertainment Customer service
+1
async Pro v1.0
Listed Proprietary · Async
8.1
/100
async Pro v1.0 is a proprietary text-to-speech (TTS) API from Async, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Artificial Analysis
Google Gemini 2.5 Flash Lite TTS
Listed Proprietary · Google
7.8
/100
Google Gemini 2.5 Flash Lite TTS is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
OpenAI TTS-1
Listed Proprietary · OpenAI
7.6
/100
OpenAI TTS-1 is a proprietary text-to-speech (TTS) API from OpenAI, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
OpenAI TTS-1 HD
Listed Proprietary · OpenAI
7.6
/100
OpenAI TTS-1 HD is a proprietary text-to-speech (TTS) API from OpenAI, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Resemble AI Chatterbox HD
Listed Proprietary · Resemble AI
7.3
/100
Resemble AI Chatterbox HD is a proprietary text-to-speech (TTS) API from Resemble AI, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
MiniMax Speech-02-HD
Listed Proprietary · MiniMax
6.8
/100
MiniMax Speech-02-HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by one independent benchmark, Artificial Analysis.
Entertainment Artificial Analysis
H
Hithink Speech 2.6
Listed Proprietary · Hithink
6.3
/100
Hithink Speech 2.6 is a proprietary text-to-speech (TTS) API from Hithink, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Google Gemini 2.5 Flash TTS (Dec 2025)
Listed Proprietary · Google
6.2
/100
Google Gemini 2.5 Flash TTS (Dec 2025) is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
MiniMax Speech-02-Turbo
Listed Proprietary · MiniMax
6.2
/100
MiniMax Speech-02-Turbo is a proprietary text-to-speech (TTS) API from MiniMax, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Fish Audio S2.1 Pro Free
Listed Proprietary · Fish Audio
6.1
/100
Fish Audio S2.1 Pro Free is a proprietary text-to-speech (TTS) API from Fish Audio, measured by one independent benchmark, Coval.
Coval
async Flash v1.0
Listed Proprietary · Async
5.8
/100
async Flash v1.0 is a proprietary text-to-speech (TTS) API from Async, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Hume AI Octave 2
Listed Proprietary · Hume AI
5.8
/100
Hume AI Octave 2 is a proprietary text-to-speech (TTS) API from Hume AI, measured by two independent benchmarks: Artificial Analysis and Speko.
Spanish German French Japanese
+2
Hume AI Octave TTS
Listed Proprietary · Hume AI
5.8
/100
Hume AI Octave TTS is a proprietary text-to-speech (TTS) API from Hume AI, measured by two independent benchmarks: Artificial Analysis and Speko.
Artificial Analysis Speko
Amazon Polly Generative
Listed Proprietary · Amazon
5.7
/100
Amazon Polly Generative is a proprietary text-to-speech (TTS) API from Amazon, measured by one independent benchmark, Artificial Analysis.
Korean Artificial Analysis
Google Studio
Listed Proprietary · Google
5.3
/100
Google Studio is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
MiniMax T2A-01-HD
Listed Proprietary · MiniMax
5.2
/100
MiniMax T2A-01-HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
OpenAI GPT-Realtime-2
Listed Proprietary · OpenAI
5.1
/100
OpenAI GPT-Realtime-2 is a proprietary text-to-speech (TTS) API from OpenAI, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Google Journey
Listed Proprietary · Google
4.9
/100
Google Journey is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Customer service Artificial Analysis
Maya 2 Flash
Listed Proprietary · Maya Research
4.8
/100
Maya 2 Flash is a proprietary text-to-speech (TTS) API from Maya Research, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Microsoft Azure Neural
Listed Proprietary · Microsoft
4.8
/100
Microsoft Azure Neural is a proprietary text-to-speech (TTS) API from Microsoft, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Alibaba Qwen3 TTS Flash Realtime
Listed Proprietary · Alibaba (Qwen)
4.3
/100
Alibaba Qwen3 TTS Flash Realtime is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Coval.
Coval
Google Gemini 2.5 Pro (Dec 2025)
Listed Proprietary · Google
4
/100
Google Gemini 2.5 Pro (Dec 2025) is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Xiaomi MiMo-V2.5-TTS
Listed Proprietary · Xiaomi
4
/100
Xiaomi MiMo-V2.5-TTS is a proprietary text-to-speech (TTS) API from Xiaomi, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Maya 2 Global
Listed Proprietary · Maya Research
3.5
/100
Maya 2 Global is a proprietary text-to-speech (TTS) API from Maya Research, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
MiniMax T2A-01-Turbo
Listed Proprietary · MiniMax
3.5
/100
MiniMax T2A-01-Turbo is a proprietary text-to-speech (TTS) API from MiniMax, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Google WaveNet
Listed Proprietary · Google
3.3
/100
Google WaveNet is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Alibaba Qwen3 TTS
Listed Proprietary · Alibaba (Qwen)
3.1
/100
Alibaba Qwen3 TTS is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Amazon Polly Long-Form
Listed Proprietary · Amazon
2.8
/100
Amazon Polly Long-Form is a proprietary text-to-speech (TTS) API from Amazon, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Microsoft MAI-Voice-1
Listed Proprietary · Microsoft
2.8
/100
Microsoft MAI-Voice-1 is a proprietary text-to-speech (TTS) API from Microsoft, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Google Standard
Listed Proprietary · Google
2.7
/100
Google Standard is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Neuphonic TTS
Listed Proprietary · Neuphonic
2.6
/100
Neuphonic TTS is a proprietary text-to-speech (TTS) API from Neuphonic, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Amazon Polly Standard
Listed Proprietary · Amazon
2.4
/100
Amazon Polly Standard is a proprietary text-to-speech (TTS) API from Amazon, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Amazon Polly Neural
Listed Proprietary · Amazon
2.2
/100
Amazon Polly Neural is a proprietary text-to-speech (TTS) API from Amazon, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Xiaomi MiMo-V2-TTS
Listed Proprietary · Xiaomi
2.1
/100
Xiaomi MiMo-V2-TTS is a proprietary text-to-speech (TTS) API from Xiaomi, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Google Neural2
Listed Proprietary · Google
2
/100
Google Neural2 is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Krafton Raon SpeechLM
Listed Proprietary · Krafton
2
/100
Krafton Raon SpeechLM is a proprietary text-to-speech (TTS) API from Krafton, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Murf Speech Gen 2
Listed Proprietary · Murf AI
2
/100
Murf Speech Gen 2 is a proprietary text-to-speech (TTS) API from Murf AI, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Rime Mist V2
Listed Proprietary · Rime
1.8
/100
Rime Mist V2 is a proprietary text-to-speech (TTS) API from Rime, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
KugelAudio Kugel 3
Listed Proprietary · KugelAudio
1.2
/100
KugelAudio Kugel 3 is a proprietary text-to-speech (TTS) API from KugelAudio, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis
Noiz TTS
Listed Proprietary · Noiz
0.2
/100
Noiz TTS is a proprietary text-to-speech (TTS) API from Noiz, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis