TTS Arena — AI Voice Model Leaderboard

Compare AI text-to-speech models head-to-head. Listen to the same text spoken by different models, vote for the most natural-sounding voice, and see how 19+ TTS models rank on our community-driven leaderboard. Objective benchmarks meet subjective human judgment.

Model Ranking Community Votes Benchmarks A/B Testing Leaderboard

TTS Arena Features

A fair, community-driven way to evaluate AI voice models

Official Benchmarks

Standardized evaluation metrics including MOS (Mean Opinion Score), character error rate, speaker similarity, and real-time factor across all 19+ models.

Community Ratings

User-submitted ratings and reviews from real TTS users. See which models perform best for specific use cases based on community feedback.

Side-by-Side Comparison

Generate the same text with two different models and compare audio quality, naturalness, and speed directly in your browser.

20+ Models Ranked

Every model on TTS.ai is benchmarked and ranked. Filter by speed, quality, language support, features, and license to find your ideal model.

Detailed Metrics

Deep-dive into each model's performance: latency, throughput, VRAM usage, supported languages, cloning quality, and emotional range scores.

Free to Use

Browse the leaderboard, compare models, and vote on quality — all completely free. No account needed to explore rankings and benchmarks.

Models in the Arena

All 19+ models compete head-to-head for the top ranking

KokoroKokoro

Free

Lightweight 82M parameter model delivering studio-quality speech with blazing-fast inference.

Fast 5/5

Эң мыктысы: Top-ranked free model — best speed-to-quality ratio on the leaderboard

Текшерүү Kokoro

ChatterboxChatterbox

Premium

State-of-the-art zero-shot voice cloning with emotion control from Resemble AI.

Medium 5/5 Сөздү клондоо

Эң мыктысы: Highest-rated voice cloning model with emotion control capabilities

Текшерүү Chatterbox

CosyVoice 2CosyVoice 2

Standard

Alibaba's scalable streaming TTS with human-parity naturalness and near-zero latency.

Medium 5/5 Сөздү клондоо

Эң мыктысы: Top multilingual model with human-parity naturalness scores

Текшерүү CosyVoice 2

StyleTTS 2StyleTTS 2

Premium

Human-level text-to-speech through style diffusion and adversarial training.

Medium 5/5

Эң мыктысы: Highest single-speaker MOS score among all open-source models

Текшерүү StyleTTS 2

Sesame CSMSesame CSM

Premium

Conversational speech model generating natural dialogue with appropriate timing and emotion.

Slow 5/5

Эң мыктысы: Leading conversational speech model for natural dialogue generation

Текшерүү Sesame CSM

TTS Arena кантип иштейт

Vote on voice quality and help rank the best AI models

1

Browse the Leaderboard

View all 19+ models ranked by quality, speed, and features. Filter by tier (free, standard, premium) or specific capabilities.

2

Compare Models Side-by-Side

Select two models and generate the same text with both. Listen to the output and compare naturalness, clarity, and emotional expression.

3

Vote on Quality

After comparing, vote for the model that sounds better. Your votes contribute to the community ranking and help other users choose.

4

Find Your Ideal Model

Use the leaderboard data and community ratings to select the best model for your specific use case, budget, and quality requirements.

What is the TTS Arena?

A community-driven approach to ranking AI voice models

Blind A/B Comparison

The arena presents the same text spoken by two randomly selected models. You listen to both samples without knowing which model generated them, then vote for the one that sounds more natural. This blind testing removes brand bias and forces judgment based purely on audio quality.

  • Same text, two anonymous models
  • Model names revealed after voting
  • Fresh random pairs each round
  • No brand bias — pure audio quality

Elo Rating System

Models are ranked using an Elo rating system, the same algorithm used to rank chess players. Winning against a higher-rated model earns more points than winning against a lower-rated one. Over thousands of votes, this produces a reliable ranking that reflects genuine community preference.

  • Elo-based ranking algorithm
  • Ratings adjust with each vote
  • Statistical confidence intervals
  • Rankings stabilize over time

Model Comparison Preview

How our 19+ models compare across key dimensions

Модель Tier _Сапат Жылдамдык Languages Cloning
Kokoro Free 4.5/5 Fast 8
Bark Standard 4.0/5 Medium 13
CosyVoice2 Standard 4.5/5 Medium 6
Tortoise TTS Premium 4.8/5 Slow 1
Chatterbox Premium 4.7/5 Medium 1
StyleTTS 2 Premium 4.7/5 Fast 1

Evaluation Criteria

What makes a TTS model rank higher in the arena

Naturalness

Does it sound like a real person? Natural prosody, rhythm, and intonation patterns that match human speech. No robotic artifacts or unnatural pauses.

Expressiveness

Does the voice convey appropriate emotion and emphasis? Good models handle questions, exclamations, and emotional context naturally.

Accuracy

Does it pronounce every word correctly? Handles unusual words, numbers, abbreviations, and foreign names without errors or hallucinated sounds.

Help Rank the Best AI Voices

Your votes directly influence the leaderboard. Every comparison helps the community find the best models.

Enter the TTS Arena

Көп берилүүчү суроолор

Common questions about the TTS Arena and model rankings

The TTS Arena is a leaderboard and comparison tool for AI text-to-speech models. It ranks 19+ models based on official benchmarks and community votes, helping users find the best model for their needs through standardized evaluation and side-by-side comparison.

Models are evaluated on multiple metrics: MOS (Mean Opinion Score) for subjective quality, character error rate for pronunciation accuracy, real-time factor for speed, VRAM usage for efficiency, and community votes for real-world preference. Scores are weighted to produce an overall ranking.

MOS is the standard metric for evaluating speech quality. Human listeners rate speech samples on a 1-5 scale for naturalness. Scores above 4.0 are considered near-human quality. Our top models achieve MOS scores of 4.2-4.5, rivaling natural human speech recordings.

Rankings depend on criteria. Kokoro leads in speed-to-quality ratio. StyleTTS 2 achieves the highest single-speaker MOS. Chatterbox tops voice cloning rankings. CosyVoice 2 leads multilingual quality. Check the leaderboard for current standings in each category.

Yes. Listen to side-by-side comparisons and vote for the model that sounds better. Voting is free and does not require an account. Community votes directly influence the rankings and help surface the best models for different use cases.

Official benchmarks are updated when new models are added or existing models receive significant updates. Community rankings update in real-time as votes come in. We re-evaluate all models quarterly to ensure consistent and fair comparison.

Character error rate (CER) measures pronunciation accuracy by transcribing generated speech and comparing it to the input text. A lower CER means the model pronounces words more accurately. GLM-TTS achieves the lowest CER among open-source models.

Enter a text sample, select two models, and click generate. Both models produce audio from the same text. Listen to both outputs and judge which sounds more natural, clear, and expressive. You can then vote for your preferred model.

Yes. We publish our benchmark methodology, test sentences, and evaluation criteria. All models are tested under identical conditions on the same GPU hardware. Community members can reproduce results using our published test sets and scoring rubrics.

The arena focuses on the 20+ open-source models hosted on TTS.ai. We do not directly benchmark commercial services like ElevenLabs or Google TTS, but our MOS scores and metrics are comparable to published benchmarks from those services.

Consider your priorities: speed (real-time needs vs batch processing), quality (MOS score), language support, special features (voice cloning, emotion control, dialogue), license terms, and budget (free vs premium tier). The arena filters help narrow options by these criteria.

Kokoro (free) achieves a 5/5 quality score, matching many premium models. The main advantages of premium models are specialized features like voice cloning (Chatterbox), style diffusion (StyleTTS 2), and conversational speech (Sesame CSM) rather than raw audio quality.
5.0/5 (1)

Cast Your Vote in the TTS Arena

Listen to AI voices, vote for the best, and explore our community-driven leaderboard of 19+ models.