Coval
Text-to-Speech Models
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TTS Model Comparison

Compare performance metrics between different Text-to-Speech models for voice agent applications.

Run evals for your Voice AI on Coval.dev

Median TTFA
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Average WER
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Latency Benchmarks

Time to First Audio

Latency Variation

Distribution of TTFA values across all runs

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Latency vs Accuracy

Average TTFA and WER across all measurements • Bubble size represents price

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Accuracy by Model

Word Error Rate (%) • Click bar to compare models

Model Performance Heatmap

Comprehensive model performance comparison • Click column headers to sort by metric

No data available for heatmap

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