Brandwave

How popular isCartesia?

In September 2026, people searched for Cartesia by name about 201,000 times worldwide, a 2945.5% increase from the previous year. These searches made up 2.7% of all global text to speech API searches, placing Cartesia second out of six APIs. When we asked both ChatGPT and Google AI Overviews about text to speech APIs, Cartesia appeared in three of the five answers and was the second most recommended of the six.

Search and AI answers in September 2026

Cartesia is the second most searched of 6 competitors and the second most recommended in AI answers.

  1. ElevenLabsShare of searches 95.5%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  2. CartesiaShare of searches 2.7%Mentioned in 3 of 5 AI answersPlace in AI recommendations 2nd
  3. Murf AIShare of searches 0.96%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  4. Play.htShare of searches 0.45%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  5. Resemble AIShare of searches 0.17%Mentioned in 0 of 5 AI answersPlace in AI recommendations –

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Top text to speech APIs in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Cartesia was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Cartesia is the second most recommended of the six.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. ElevenLabs1st
  2. Cartesia2nd
  3. Amazon Polly3rd
  4. Murf AI–
  5. Play.ht–
  6. Resemble AI–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • ElevenLabs5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Cartesia3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Amazon Polly2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Murf AI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Play.ht0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Resemble AI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about text to speech APIs

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Which text to speech APIs compete with Cartesia?

Cartesia against text to speech APIs worldwide, by month

Share of searches by month for ElevenLabs, Cartesia. The figures are in the table below the chart.

View monthly share of searches table
MonthElevenLabsCartesiaMurf AIPlay.htResemble AIAmazon Polly
Oct 202594.9%0.11%2.4%1.8%0.55%0.35%
Nov 202595.2%0.16%2.3%1.5%0.55%0.36%
Dec 202595.7%0.08%1.7%1.7%0.48%0.31%
Jan 202695.7%0.14%1.7%1.9%0.39%0.21%
Feb 202695.6%0.16%1.6%2%0.38%0.24%
Mar 202696.1%0.14%1.4%1.9%0.26%0.2%
Apr 202695.8%0.13%1.6%1.9%0.31%0.2%
May 202696.6%0.2%1.4%1.4%0.21%0.16%
Jun 202697.7%0.25%0.97%0.77%0.18%0.11%
Jul 202697.6%0.38%0.97%0.77%0.15%0.14%
Aug 202697.3%0.86%1%0.58%0.15%0.12%
Sep 202695.5%2.7%0.96%0.45%0.17%0.16%

  1. 1.ElevenLabs

    95.5%

    Held 1st. 7.1M estimated branded searches, -15.3% vs prior month. Share -1.8 points.

  2. 2.Cartesia

    2.7%

    Moved from 3rd to 2nd. 201K estimated branded searches, +171.6% vs prior month. Share +1.9 points.

  3. 3.Murf AI

    0.96%

    Moved from 2nd to 3rd. 70.5K estimated branded searches, -17.3% vs prior month. Share 0 points.

  4. 4.Play.ht

    0.45%

    Held 4th. 32.9K estimated branded searches, -33.3% vs prior month. Share -0.1 points.

  5. 5.Resemble AI

    0.17%

    Held 5th. 12.8K estimated branded searches, -0.62% vs prior month. Share 0 points.

  6. 6.Amazon Polly

    0.16%

    Held 6th. 12.1K estimated branded searches, +22.2% vs prior month. Share 0 points.

Compare popularity between Cartesia and its closest rivals

Every comparison with Cartesia

5 comparisons

How has branded search demand for Cartesia changed worldwide over the last 12 months?

4 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Cartesia worldwide rose from 6.6K to 201K.
  • Across the 12 months ending September 2026, Cartesia’s share of searches among text to speech APIs worldwide increased from 0.11% to 2.7%.
  • Across the 12 months ending September 2026, Cartesia’s share of searches among text to speech APIs worldwide peaked at 2.7% in September 2026 and was lowest at 0.08% in December 2025.
  • Across the 12 months ending September 2026, Cartesia rose from 6th to 2nd among text to speech APIs worldwide.

How did search popularity change for text to speech APIs worldwide in September 2026?

6 changes

  1. In September 2026, Cartesia overtook Murf AI to rank 2nd among text to speech APIs worldwide, with 2.7% of the searches.

  2. In September 2026, ElevenLabs lost share of searches among text to speech APIs worldwide, from 97.3% to 95.5%.

  3. Estimated monthly branded searches for Play.ht worldwide fell 70.1% over 12 measured months, from 110K to 32.9K in September 2026.

  4. Estimated monthly branded searches for Resemble AI worldwide fell 62.7% over 12 measured months, from 34.2K to 12.8K in September 2026.

  5. Estimated monthly branded searches for Murf AI worldwide fell 52.4% over 12 measured months, from 148K to 70.5K in September 2026.

  6. Estimated monthly branded searches for Amazon Polly worldwide fell 45.5% over 12 measured months, from 22.2K to 12.1K in September 2026.

How are Cartesia’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Cartesia’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • cartesia ai

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How the Brand Demand Index is measured

Where does Cartesia compete?

Cartesia is ranked in two competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Text to speech APIs2nd of 62.7%Shown above
Voice cloning platforms2nd of 52.7%Show ranking
Creator with pink hair and a pink jacket

Is Cartesia your brand?

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