{ "anchors": { "naturalness_pairwise_win_rate": { "a": 30, "b": 50, "direction": "higher" }, "pronunciation_error_rate": { "a": 10, "b": 2, "direction": "lower" } }, "as_of": "2026-11-05", "attributions": [], "board": { "category": "voiceover", "cost": { "kind": "tariff", "label": "Cheapest qualifying plan per month", "unit": "USD per month" }, "half_life_days": 30, "job": "Voice 40 thirty-second Spanish radio and social spots a month, three takes each. The ads run for a client, so commercial rights are required.", "price_limit_days": 30, "products": [ { "id": "elevenlabs-v4", "name": "Eleven v4", "vendor": "ElevenLabs" }, { "id": "elevenlabs-v4-turbo", "name": "Eleven v4 Turbo", "vendor": "ElevenLabs" }, { "id": "elevenlabs-flash", "name": "Eleven Flash", "vendor": "ElevenLabs" }, { "id": "cartesia-sonic-3-6", "name": "Sonic 3.6", "vendor": "Cartesia" }, { "id": "openai-gpt-4o-mini-tts", "name": "gpt-4o-mini-tts", "vendor": "OpenAI" }, { "id": "google-chirp3-hd", "name": "Chirp 3 HD", "vendor": "Google Cloud" }, { "id": "google-neural2", "name": "Neural2", "vendor": "Google Cloud" }, { "id": "google-wavenet", "name": "WaveNet", "vendor": "Google Cloud" }, { "id": "google-standard", "name": "Standard voices", "vendor": "Google Cloud" }, { "id": "google-studio", "name": "Studio voices", "vendor": "Google Cloud" }, { "id": "azure-neural", "name": "Neural voices", "vendor": "Microsoft Azure" }, { "id": "polly-standard", "name": "Polly 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"id": "murf-gen2", "name": "Gen2", "vendor": "Murf" }, { "id": "murf-studio", "name": "Murf Studio", "vendor": "Murf" } ], "question": "Which text-to-speech service gives the best Spanish ad voice, with commercial rights, for the least money?", "region": "global", "requirements": { "commercial_rights": true, "language": "es" }, "slug": "voiceover-ad-spanish", "title": "Voiceover for Spanish ads", "workload": { "chars_per_month": 60000, "unit_note": "40 spots x 30 s x 3 takes = 60 minutes = 60,000 characters. 1,000 characters per finished minute of audio (assumption: ElevenLabs lists about $0.08 per minute at $0.08 per 1,000 characters; Inworld says about 1,000; Cartesia says 750 to 800)." } }, "code_commit": "6585be527486036d41ec57c349ffe2a97aa8cd24", "decision": { "disqualified": [ "deepgram-aura-1" ], "leader": null, "margin": 3, "needed": [ { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", 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"metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "elevenlabs-v4-turbo", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "fish-audio-app", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "fish-s2-1-pro", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "google-chirp3-hd", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "google-neural2", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "google-standard", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "google-studio", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "google-wavenet", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "inworld-tts-2", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "inworld-tts-2-flash", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one 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"openai-gpt-4o-mini-tts", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "polly-generative", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "polly-long-form", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "polly-neural", "type": "measure" }, { "metrics": [ "naturalness_pairwise_win_rate", "pronunciation_error_rate" ], "need": "at least one auditable or documented measurement", "product": "polly-standard", "type": "measure" } ], "reasons": [ { "code": "no_quality_evidence" }, { "code": "quality_missing", "product": "azure-neural" }, { "code": "quality_missing", "product": "cartesia-sonic-3-6" }, { "code": "quality_missing", "product": "deepgram-aura-2" }, { "code": "quality_missing", "product": "deepgram-flux-tts" }, { "code": "quality_missing", "product": "elevenlabs-flash" }, { "code": "quality_missing", "product": "elevenlabs-v4" }, { "code": "quality_missing", "product": "elevenlabs-v4-turbo" }, { "code": "quality_missing", "product": "fish-audio-app" }, { "code": "quality_missing", "product": "fish-s2-1-pro" }, { "code": "quality_missing", "product": "google-chirp3-hd" }, { "code": "quality_missing", "product": "google-neural2" }, { "code": "quality_missing", "product": "google-standard" }, { "code": "quality_missing", "product": "google-studio" }, { "code": "quality_missing", "product": "google-wavenet" }, { "code": "quality_missing", "product": "inworld-tts-2" }, { "code": "quality_missing", "product": "inworld-tts-2-flash" }, { "code": "quality_missing", "product": "minimax-speech-2-8-hd" }, { "code": "quality_missing", "product": "minimax-speech-2-8-turbo" }, { "code": "quality_missing", "product": "murf-falcon-2-1" }, { "code": "quality_missing", "product": "murf-gen2" }, { "code": "quality_missing", "product": "murf-studio" }, { "code": "quality_missing", "product": "openai-gpt-4o-mini-tts" }, { "code": "quality_missing", "product": "polly-generative" }, { "code": "quality_missing", "product": "polly-long-form" }, { "code": "quality_missing", "product": "polly-neural" }, { "code": "quality_missing", "product": "polly-standard" } ], "shortlist": [], "unmeasured": [ "azure-neural", "cartesia-sonic-3-6", "deepgram-aura-2", "deepgram-flux-tts", "elevenlabs-flash", "elevenlabs-v4", "elevenlabs-v4-turbo", "fish-audio-app", "fish-s2-1-pro", "google-chirp3-hd", "google-neural2", "google-standard", "google-studio", "google-wavenet", "inworld-tts-2", "inworld-tts-2-flash", "minimax-speech-2-8-hd", "minimax-speech-2-8-turbo", "murf-falcon-2-1", "murf-gen2", "murf-studio", "openai-gpt-4o-mini-tts", "polly-generative", "polly-long-form", "polly-neural", "polly-standard" ], "verdict": "insufficient", "winner": null }, "evidence_ids": [], "pareto": { "dominated": [], "excluded": [ { "id": "azure-neural", "reason": "cost_unconfirmed" }, { "id": "cartesia-sonic-3-6", "reason": "unknown_quality" }, { "id": "deepgram-aura-1", "reason": "disqualified" }, { "id": "deepgram-aura-2", "reason": "unknown_quality" }, { "id": "deepgram-flux-tts", "reason": "cost_unconfirmed" }, { "id": "elevenlabs-flash", "reason": "unknown_quality" }, { "id": "elevenlabs-v4", "reason": "unknown_quality" }, { "id": "elevenlabs-v4-turbo", "reason": "unknown_quality" }, { "id": "fish-audio-app", "reason": "unknown_cost_and_quality" }, { "id": "fish-s2-1-pro", "reason": "unknown_cost_and_quality" }, { "id": "google-chirp3-hd", "reason": "cost_unconfirmed" }, { "id": "google-neural2", "reason": "cost_unconfirmed" }, { "id": "google-standard", "reason": "cost_unconfirmed" }, { "id": "google-studio", "reason": "cost_unconfirmed" }, { "id": "google-wavenet", "reason": "cost_unconfirmed" }, { 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"label": "incomplete", "low": 0, "product": "minimax-speech-2-8-hd", "q": null, "rank": 17, "status": "active" }, { "cost": 3.6, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "minimax-speech-2-8-turbo", "q": null, "rank": 18, "status": "active" }, { "cost": 0.6, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "murf-falcon-2-1", "q": null, "rank": 19, "status": "active" }, { "cost": 1.8, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "murf-gen2", "q": null, "rank": 20, "status": "active" }, { "cost": null, "cost_confirmed": false, "high": 100, "label": "incomplete", "low": 0, "product": "murf-studio", "q": null, "rank": 21, "status": "active" }, { "cost": null, "cost_confirmed": false, "high": 100, "label": "incomplete", "low": 0, "product": "openai-gpt-4o-mini-tts", "q": null, "rank": 22, "status": "active" }, { "cost": 1.8, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "polly-generative", "q": null, "rank": 23, "status": "active" }, { "cost": 6, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "polly-long-form", "q": null, "rank": 24, "status": "active" }, { "cost": 0.96, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "polly-neural", "q": null, "rank": 25, "status": "active" }, { "cost": 0.24, "cost_confirmed": true, "high": 100, "label": "incomplete", "low": 0, "product": "polly-standard", "q": null, "rank": 26, "status": "active" }, { "cost": null, "cost_confirmed": false, "high": 100, "label": "incomplete", "low": 0, "product": "deepgram-aura-1", "q": null, "rank": null, "status": "disqualified" } ], "schema": 1, "seed": null, "site": { "board_note": "No quality evidence is published yet: the rights register has no usable source for voice quality (see the Sources page). The board shows cost only and ranks nobody until measured or licensed evidence arrives. Quality metrics and anchors are editorial and unvalidated.", "first_paragraph": "As of 5 November 2026, no option is recommended. Quality has not been measured for any of the 27 options on this board, and cost is not a recommendation.", "interval_labels": {}, "ranking_is_quality_order": false, "ranking_note": "Options without a measured score are numbered in the alphabetical order of their ids. Those rank numbers are not a quality ranking and not a recommendation.", "sources_used": [ { "checked_on": "2026-11-03", "id": "pricing-amazon-polly", "name": "Amazon Polly pricing", "status": "facts-only", "url": "https://aws.amazon.com/polly/pricing/" }, { "checked_on": "2026-11-03", "id": "pricing-azure-speech", "name": "Azure Speech pricing", "status": "facts-only", "url": "https://azure.microsoft.com/en-us/pricing/details/cognitive-services/speech-services/" }, { "checked_on": "2026-11-03", "id": "pricing-cartesia", "name": "Cartesia pricing", "status": "facts-only", "url": "https://www.cartesia.ai/pricing" }, { "checked_on": "2026-11-03", "id": "pricing-deepgram", "name": "Deepgram pricing", "status": "facts-only", "url": "https://deepgram.com/pricing" }, { "checked_on": "2026-11-03", "id": "pricing-elevenlabs", "name": "ElevenLabs API pricing", "status": "facts-only", "url": "https://elevenlabs.io/pricing/api" }, { "checked_on": "2026-11-03", "id": "pricing-fish-audio", "name": "Fish Audio API and app pricing", "status": "facts-only", "url": "https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits" }, { "checked_on": "2026-11-03", "id": "pricing-google-cloud-tts", "name": "Google Cloud Text-to-Speech pricing", "status": "facts-only", "url": "https://cloud.google.com/text-to-speech/pricing" }, { "checked_on": "2026-11-03", "id": "pricing-inworld", "name": "Inworld pricing", "status": "facts-only", "url": "https://inworld.ai/pricing" }, { "checked_on": "2026-11-03", "id": "pricing-minimax", "name": "MiniMax Speech pay-as-you-go pricing", "status": "facts-only", "url": "https://platform.minimax.io/docs/guides/pricing-paygo" }, { "checked_on": "2026-11-03", "id": "pricing-murf", "name": "Murf pricing", "status": "facts-only", "url": "https://murf.ai/pricing" }, { "checked_on": "2026-11-03", "id": "pricing-openai", "name": "OpenAI gpt-4o-mini-tts model page", "status": "facts-only", "url": "https://developers.openai.com/api/docs/models/gpt-4o-mini-tts" } ], "verdict_label": "Insufficient evidence" }, "tariff_ids": [ "azure-neural.free-f0.2026-11-03.r1", "azure-neural.pay-as-you-go.2026-11-03.r1", "cartesia-sonic-3-6.free.2026-11-03.r1", "cartesia-sonic-3-6.pro.2026-11-03", "cartesia-sonic-3-6.scale.2026-11-03", "cartesia-sonic-3-6.startup.2026-11-03", "deepgram-aura-1.pay-as-you-go.2026-11-03.r1", "deepgram-aura-2.pay-as-you-go.2026-11-03.r1", "deepgram-flux-tts.pay-as-you-go.2026-11-03.r1", "elevenlabs-flash.business.2026-11-03.r1", "elevenlabs-flash.creator.2026-11-03.r1", "elevenlabs-flash.free.2026-11-03.r1", "elevenlabs-flash.pay-as-you-go.2026-11-03.r1", "elevenlabs-flash.pro.2026-11-03.r1", "elevenlabs-flash.scale.2026-11-03.r1", "elevenlabs-flash.starter.2026-11-03.r1", "elevenlabs-v4-turbo.business.2026-11-03", "elevenlabs-v4-turbo.creator.2026-11-03", "elevenlabs-v4-turbo.free.2026-11-03.r1", "elevenlabs-v4-turbo.pay-as-you-go.2026-11-03", "elevenlabs-v4-turbo.pro.2026-11-03", "elevenlabs-v4-turbo.scale.2026-11-03", "elevenlabs-v4-turbo.starter.2026-11-03", "elevenlabs-v4.business.2026-11-03", "elevenlabs-v4.creator.2026-11-03", "elevenlabs-v4.free.2026-11-03.r1", "elevenlabs-v4.pay-as-you-go.2026-11-03", "elevenlabs-v4.pro.2026-11-03", "elevenlabs-v4.scale.2026-11-03", "elevenlabs-v4.starter.2026-11-03", "fish-audio-app.free.2026-11-03.r1", "fish-audio-app.plus.2026-11-03", "fish-audio-app.pro.2026-11-03", "fish-s2-1-pro.pay-as-you-go.2026-11-03", "google-chirp3-hd.pay-as-you-go.2026-11-03", "google-neural2.pay-as-you-go.2026-11-03.r1", "google-standard.pay-as-you-go.2026-11-03.r1", "google-studio.pay-as-you-go.2026-11-03.r1", "google-wavenet.pay-as-you-go.2026-11-03.r1", "inworld-tts-2-flash.builder.2026-11-03", "inworld-tts-2-flash.creator.2026-11-03", "inworld-tts-2-flash.developer.2026-11-03", "inworld-tts-2-flash.growth.2026-11-03", "inworld-tts-2-flash.on-demand.2026-11-03", "inworld-tts-2.builder.2026-11-03", "inworld-tts-2.creator.2026-11-03", "inworld-tts-2.developer.2026-11-03", "inworld-tts-2.growth.2026-11-03", "inworld-tts-2.on-demand.2026-11-03", "minimax-speech-2-8-hd.pay-as-you-go.2026-11-03.r1", "minimax-speech-2-8-turbo.pay-as-you-go.2026-11-03.r1", "murf-falcon-2-1.pay-as-you-go.2026-11-03.r1", "murf-gen2.pay-as-you-go.2026-11-03.r1", "murf-studio.business.2026-11-03", "murf-studio.creator.2026-11-03", "murf-studio.free.2026-11-03", "openai-gpt-4o-mini-tts.pay-as-you-go.2026-11-03.r1", "polly-generative.pay-as-you-go.2026-11-03.r1", "polly-long-form.pay-as-you-go.2026-11-03.r1", "polly-neural.pay-as-you-go.2026-11-03.r1", "polly-standard.pay-as-you-go.2026-11-03.r1" ], "weights": { "naturalness_pairwise_win_rate": 0.5, "pronunciation_error_rate": 0.5 } }