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Comprehensive analysis based on the latest model metadata from the comparison table above.
At $2.50 per 1M input tokens and $10.00 per 1M output tokens, gpt-4o-mini-tts-2025-12-15 ranks 5 out of 5 audio speech models by input cost. It is competitively priced compared to the median of $2.50 for audio speech models, and is cheaper than 0% of models in this category.