{
  "name": "AIToolStack",
  "category": "voice",
  "title": "Voice & audio",
  "url": "https://aitoolstack.vercel.app/categories/voice",
  "methodology": "https://aitoolstack.vercel.app/about",
  "formula": {
    "evidence": "Sum of weight × normalized value for metrics that have a sourced value, divided by the sum of those weights.",
    "coverage": "Sum of weights for sourced metrics, divided by the sum of all weights in the category.",
    "composite": "evidence × coverage. A missing metric is not treated as zero inside the evidence average. It lowers coverage instead.",
    "rank": "Tools at or above 50% coverage are ranked by composite, then evidence, then slug A to Z. A tool under 50% coverage is labeled insufficient data, has no numeric rank, and is not eligible for the top 3.",
    "blanks": "If a metric cannot be verified, it is omitted and shown as not available.",
    "coding": "Coding compares products. It does not use Text Arena Elo, the Artificial Analysis Intelligence Index, or a lab model's SWE-bench row. The only benchmark in Coding is product_swebench, and only when the board names that product's harness.",
    "capabilities": "Sourced capability checks are published on the tool. They are not in the composite until the same check exists for every tool in the category."
  },
  "weights": [
    {
      "id": "speech_arena_elo",
      "weight": 0.3
    },
    {
      "id": "free_tier",
      "weight": 0.18
    },
    {
      "id": "entry_monthly_usd",
      "weight": 0.18
    },
    {
      "id": "review_rating",
      "weight": 0.18
    },
    {
      "id": "review_count",
      "weight": 0.16
    }
  ],
  "ranked": [
    {
      "status": "ranked",
      "rank": 1,
      "tied": false,
      "slug": "elevenlabs",
      "name": "ElevenLabs",
      "url": "https://elevenlabs.io",
      "composite": 87.2,
      "evidence": 87.2,
      "coverage": 1,
      "metrics": {
        "status": "ranked",
        "rank": 1,
        "of": 3,
        "composite": 87.2,
        "evidence": 87.2,
        "coverage": 1,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "scored",
            "value": 1330,
            "normalized": 88.3,
            "asOf": "2026-10-16",
            "sourceUrl": "https://artificialanalysis.ai/text-to-speech/leaderboard/provider-voice",
            "subject": "Eleven v4 Turbo",
            "preliminary": false,
            "detail": "Elo 1330±18. Retrieval date; the leaderboard page did not print a timestamp. API price on that row is $40 per 1M characters and is not the subscription scored below.",
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "scored",
            "value": true,
            "normalized": 100,
            "asOf": "2026-10-16",
            "sourceUrl": "https://elevenlabs.io/pricing",
            "subject": "Free",
            "preliminary": false,
            "detail": "Free is listed at $0 per month.",
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "scored",
            "value": 6,
            "normalized": 85,
            "asOf": "2026-10-16",
            "sourceUrl": "https://elevenlabs.io/pricing",
            "subject": "Starter",
            "preliminary": false,
            "detail": "The FAQ lists Starter at $6 per month. A first-month promo price on the same page is not used.",
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "scored",
            "value": 4.84,
            "normalized": 96.8,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/elevenlabs-ai-voice-generator/id6743162587",
            "subject": "ElevenLabs: AI Voice Generator",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.84048 and userRatingCount 22423 for ElevenLabs: AI Voice Generator by Eleven Labs Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "scored",
            "value": 22423,
            "normalized": 62.2,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/elevenlabs-ai-voice-generator/id6743162587",
            "subject": "ElevenLabs: AI Voice Generator",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.84048 and userRatingCount 22423 for ElevenLabs: AI Voice Generator by Eleven Labs Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          }
        ]
      }
    },
    {
      "status": "ranked",
      "rank": 2,
      "tied": false,
      "slug": "grok",
      "name": "Grok",
      "url": "https://x.ai/grok",
      "composite": 64.1,
      "evidence": 91.5,
      "coverage": 0.7000000000000002,
      "metrics": {
        "status": "ranked",
        "rank": 2,
        "of": 3,
        "composite": 64.1,
        "evidence": 91.5,
        "coverage": 0.7,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "scored",
            "value": true,
            "normalized": 100,
            "asOf": "2026-10-16",
            "sourceUrl": "https://docs.x.ai/x-subscription/pricing",
            "subject": "Free",
            "preliminary": false,
            "detail": "The X Subscription price table lists Free at $0. New self-serve plans include Grok. Existing SuperGrok plans can continue.",
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "scored",
            "value": 8,
            "normalized": 80,
            "asOf": "2026-10-16",
            "sourceUrl": "https://docs.x.ai/x-subscription/pricing",
            "subject": "Plus",
            "preliminary": false,
            "detail": "Plus is $8 per month, or $80 per year. It is the cheapest paid individual plan in the table. Premium is $30 per month. Annual discounts are not scored.",
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "scored",
            "value": 4.87,
            "normalized": 97.4,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/grok-ai/id6670324846",
            "subject": "Grok AI",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.87411 and userRatingCount 1510343 for Grok AI by X Corp.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "scored",
            "value": 1510343,
            "normalized": 88.3,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/grok-ai/id6670324846",
            "subject": "Grok AI",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.87411 and userRatingCount 1510343 for Grok AI by X Corp.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          }
        ]
      }
    },
    {
      "status": "ranked",
      "rank": 3,
      "tied": false,
      "slug": "suno",
      "name": "Suno",
      "url": "https://suno.com",
      "composite": 48.3,
      "evidence": 92.9,
      "coverage": 0.5200000000000001,
      "metrics": {
        "status": "ranked",
        "rank": 3,
        "of": 3,
        "composite": 48.3,
        "evidence": 92.9,
        "coverage": 0.52,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "scored",
            "value": true,
            "normalized": 100,
            "asOf": "2026-10-16",
            "sourceUrl": "https://suno.com/pricing",
            "subject": "Free",
            "preliminary": false,
            "detail": "Free is listed at $0 per month. A paid price on the same page is tied to a monthly/annual toggle and a yearly savings line, so the entry price is left blank rather than guessing which figure is the monthly list price.",
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "scored",
            "value": 4.88,
            "normalized": 97.6,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/suno-ai-songs-music-lyrics/id6480136315",
            "subject": "Suno - AI Songs, Music, Lyrics",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.88378 and userRatingCount 372548 for Suno - AI Songs, Music, Lyrics by Suno Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "scored",
            "value": 372548,
            "normalized": 79.6,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/suno-ai-songs-music-lyrics/id6480136315",
            "subject": "Suno - AI Songs, Music, Lyrics",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.88378 and userRatingCount 372548 for Suno - AI Songs, Music, Lyrics by Suno Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          }
        ]
      }
    },
    {
      "status": "insufficient-data",
      "rank": null,
      "tied": false,
      "slug": "speechify",
      "name": "Speechify",
      "url": "https://speechify.com",
      "composite": 29.9,
      "evidence": 87.8,
      "coverage": 0.34,
      "metrics": {
        "status": "insufficient-data",
        "rank": null,
        "of": 3,
        "composite": 29.9,
        "evidence": 87.8,
        "coverage": 0.34,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "scored",
            "value": 4.66,
            "normalized": 93.2,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/speechify-text-to-speech-pdf/id1209815023",
            "subject": "Speechify – Text to Speech PDF",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.66193 and userRatingCount 526347 for Speechify – Text to Speech PDF by Speechify Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "scored",
            "value": 526347,
            "normalized": 81.7,
            "asOf": "2026-10-16",
            "sourceUrl": "https://apps.apple.com/us/app/speechify-text-to-speech-pdf/id1209815023",
            "subject": "Speechify – Text to Speech PDF",
            "preliminary": false,
            "detail": "Apple App Store listing in the US. iTunes Search API lookup on 2026-10-16 returned averageUserRating 4.66193 and userRatingCount 526347 for Speechify – Text to Speech PDF by Speechify Inc.. The stored rating is that average rounded to two decimal places. The store page does not print a rating timestamp.",
            "sources": null
          }
        ]
      }
    },
    {
      "status": "insufficient-data",
      "rank": null,
      "tied": false,
      "slug": "murf",
      "name": "Murf",
      "url": "https://murf.ai",
      "composite": 27.3,
      "evidence": 56.8,
      "coverage": 0.48000000000000004,
      "metrics": {
        "status": "insufficient-data",
        "rank": null,
        "of": 3,
        "composite": 27.3,
        "evidence": 56.8,
        "coverage": 0.48,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "scored",
            "value": 985,
            "normalized": 30.8,
            "asOf": "2026-10-16",
            "sourceUrl": "https://artificialanalysis.ai/text-to-speech/leaderboard/provider-voice",
            "subject": "Murf Speech Gen 2",
            "preliminary": false,
            "detail": "Elo 985±12. Retrieval date; the leaderboard page did not print a timestamp.",
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "scored",
            "value": true,
            "normalized": 100,
            "asOf": "2026-10-16",
            "sourceUrl": "https://murf.ai/pricing",
            "subject": "Try for Free",
            "preliminary": false,
            "detail": "The pricing page says Try for Free and no credit card required. The dollar figures on that page are API rates per character or per minute, not a monthly seat price, so entry price is blank. iTunes lookup did not return an app published by Murf.",
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          }
        ]
      }
    },
    {
      "status": "insufficient-data",
      "rank": null,
      "tied": false,
      "slug": "descript",
      "name": "Descript",
      "url": "https://www.descript.com",
      "composite": 25.2,
      "evidence": 70,
      "coverage": 0.36000000000000004,
      "metrics": {
        "status": "insufficient-data",
        "rank": null,
        "of": 3,
        "composite": 25.2,
        "evidence": 70,
        "coverage": 0.36,
        "tied": false,
        "metrics": [
          {
            "id": "speech_arena_elo",
            "label": "Speech Arena Elo",
            "weight": 0.3,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "free_tier",
            "label": "Free tier",
            "weight": 0.18,
            "status": "scored",
            "value": true,
            "normalized": 100,
            "asOf": "2026-10-16",
            "sourceUrl": "https://www.descript.com/pricing",
            "subject": "Free",
            "preliminary": false,
            "detail": "The pricing page lists Free at $0.",
            "sources": null
          },
          {
            "id": "entry_monthly_usd",
            "label": "Entry monthly price",
            "weight": 0.18,
            "status": "scored",
            "value": 24,
            "normalized": 40,
            "asOf": "2026-10-16",
            "sourceUrl": "https://www.descript.com/pricing",
            "subject": "Hobbyist",
            "preliminary": false,
            "detail": "The Hobbyist card shows $16 and $24 per person per month under a toggle that says saving up to 35% over the monthly plan. $16 is about a third below $24, which matches that savings line, so $24 is scored as the monthly price.",
            "sources": null
          },
          {
            "id": "review_rating",
            "label": "App Store rating",
            "weight": 0.18,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          },
          {
            "id": "review_count",
            "label": "App Store reviews",
            "weight": 0.16,
            "status": "not-available",
            "value": null,
            "normalized": null,
            "asOf": null,
            "sourceUrl": null,
            "subject": null,
            "preliminary": false,
            "detail": null,
            "sources": null
          }
        ]
      }
    }
  ]
}