Gradium Voice Cloning and Voice Design
by Gradium SAS Model API in Voice cloning & custom voices
Hosted
Gradium SAS · gradium.ai since 2025 · status page · who's behind it
Gradium's voice API creates a custom voice from an uploaded audio sample of about 10 seconds, or designs one from a written description, for its text-to-speech models in English, French, German, Spanish and Portuguese.
Best for Builders on Gradium's TTS who want instant clones and designed voices in five European languages with EU residency.
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Assessment. A public OpenAPI file, dated release notes and a free plan with five custom voices and no card make Gradium's clone and design endpoints easy to adopt. The Terms let Gradium train on customer data, zero data retention excludes voice samples, and there's no consent field, rate-limit guidance or SLA.
Facts
Access how an agent reaches and pays for it
- Transport
- HTTP, websocket
- Endpoint
https://api.gradium.ai/api/voices/- Auth
- API key
- Pricing
- Freemium · $12 / mo
- x402
- No
- Licence
- Proprietary service under Gradium's Terms of Service (version of 19 October 2026). The `gradium` Python SDK is on PyPI
- Capabilities
- voice.clone voice.design speech.tts
Where it lives packages, source, docs and releases
- Packages
pypigradium- llms.txt
- published
- Last release
From our research 10 facts checked against the vendor's pages
- Surface listed
- The voice endpoints of the Gradium API at api.gradium.ai (
POST /api/voices/and the voice-generator routes), read from docs.gradium.ai, its OpenAPI file, the pricing, terms, privacy and press pages on gradium.ai and gradium.statuspage.io on 6 November 2026. No account was made and no call was sent - Sample length
- About 10 seconds recommended for an instant clone, with
start_sto pick where sampling starts. Pro voice clones need 30 minutes or more and are on the M and L plans - Endpoints
POST /voices/(multipart clone),GET /voices/withskip,limit,locale,gender,use_caseandinclude_catalog,GET,PUTandDELETE /voices/{voice_uid}, plusvoice-generator/generate,embeddings,enhanceandlocalize- Voice design
POST /voice-generator/generatereturns 1 to 5 candidates from a 1 to 500 character description. Candidates are kept 30 days and one is saved withPOST /voices/from-embedding- Languages
en,fr,de,esandpt, required on the clone request and used as the source language for localisation- Consent and verification
- No consent or verification field in the API. The Terms make the client obtain any consent needed for a voice sample and bar impersonation without explicit authorisation. The API reference FAQ says explicit consent from the voice owner is required. No watermark found
- Custom voices per plan
- Free 5, XS to L 1,000, Enterprise unlimited, shared by clones and designed voices. Pro voice clones 5 on M and 20 on L
- Concurrency
- TTS sessions 2 (free), 5, 5, 10 and 15 by plan per the pricing page. The limits page says to ask support for exact limits
- Regions
- EU and US API hosts (eu.api.gradium.ai, us.api.gradium.ai), with data residency from the XS plan
- Legal entity
- Gradium, a société par actions simplifiée registered in Paris under 989 284 955, 151bis rue Saint-Honoré, 75001 Paris, per the Terms
Facts verified 6 November 2026 from vendor docs, repositories and package registries. JSON · Markdown
Strengths
- Public OpenAPI 3.1 file covering cloning, voice design, enhancement and localisation
- Free plan with 45,000 credits a month, 5 custom voices and no card required
- Voice Design returns 1 to 5 candidates from a description, kept 30 days until one is saved
- SOC 2 Type II and ISO 27001:2022 audited by A-LIGN, with EU and US data residency
- Release notes dated per entry, the newest on 6 November 2026
Weaknesses
- The Terms grant Gradium a licence to train its models on Client Data, and zero data retention excludes voice samples
- No consent or verification field in the clone API, and no watermark found
- No 429, Retry-After or backoff guidance, and no SLA
- Synthesis errors come back as plain-text HTTP 500 bodies to parse
- Commercial use needs a paid plan, and only a Python SDK is published
Before you call it notes for agents
- Send
languageon every clone. It's required and must be one of en, fr, de, es or pt and match the recording - Clones are enhanced by default since 23 October 2026. Pass
enhance=falseto keep the raw voice, then checkenhanceon GET - Pass a clone as
voice_idin TTS, notvoice - On a non-2xx synthesis reply, parse the
error from server <code>prefix; 1008 means a bad or revoked key - Check the custom-voice allowance first. The free plan holds 5 voices shared by clones and designs
Who's behind it provenance 74/100
- Legal entity namedGradium SAS20/20
- Domain agegradium.ai, registered 2025-03-04 (1 year)3/15
- Endpoint on the vendor's domainapi.gradium.ai15/15
- Terms of serviceread, states 4 of the 7 things a reader expects, and has 1 clause that costs points5.4/10
- Privacy policyread, states 7 of the 8 things a reader expects9.3/10
- Status pagegradium.statuspage.io10/10
- Changelogpublished10/10
- security.txtnot found0/10
- People named4 named with their role, none with a public profile7/10
- Support routea support address, help pages, a community5/5
Terms and privacy, as read
Terms of service gives no date, states 4 of 7, 1 to know
TL;DR Gives no date. States 4 of the 7 things a reader expects, and we didn't find what users may not do or a service level. To know before relying on it, model training with no opt-out found.
Says it may use customer content to train or improve models, and no opt-out was foundcosts points
Access, use, modify, copy, analyze any part of the Services, including Output and Voice Reproduction, or the Documentation to develop a competitive AI model, AI system, product, software or service.
Content an agent sends could end up in a model. An opt-out, where the document gives one, is shown instead.
Gives the date it was last updated
Not found in the text.
Without a date nobody can tell which version they agreed to.
Names the governing law or courts The law of France
The Agreement shall be governed by and construed in accordance with the laws of France excluding rules governing conflict of law and choice of law.
Says where a dispute would be heard and under whose law.
States a limit on its liability Capped at the fees paid in the 6 months before the claim
UNLESS EXPLICITLY STATED OTHERWISE IN THE AGREEMENT, IN NO EVENT WILL GRADIUM'S (TOGETHER WITH ALL OF ITS AFFILIATES) AGGREGATE LIABILITY ARISING OUT OF OR RELATED TO THE AGREEMENT (REGARDLESS OF THE NUMBER OF INDIVIDUAL INCIDENTS GIVING RISE TO LIABILITY) EXCEED ONE HUNDRED PERCENT (100%) OF THE TOTAL AMOUNT PAID BY…
Says the most the vendor would owe if the service causes a loss.
Says how the agreement or account can be ended
ANY CLIENT DATA ENTERED INTO BETA SERVICES BY OR FOR CLIENT, MAY BE PERMANENTLY LOST IF THE BETA SERVICES ARE SUSPENDED, TERMINATED, OR DISCONTINUED.
Says when the vendor can cut off access and what notice it gives.
Says how changes to the terms are announced Gives thirty days of notice before a change
GRADIUM will give Client at least thirty (30) days' advance notice of changes to these Terms of Service that materially adversely impact Client via email.
Says whether a customer hears about a change before it binds them.
Lists what users may not do
Not found in the text.
The acceptable-use rules an agent acting for a user has to stay inside.
Refers to a service level or uptime commitment
Not found in the text.
Says whether availability is promised and where the promise is written.
The document · read 2026-11-06 · 8,741 words
Privacy policy gives no date, states 7 of 8
TL;DR Gives no date. States 7 of the 8 things a reader expects. The rules found no clause to flag.
Gives the date it was last updated
Not found in the text.
Without a date nobody can tell which version applied when data was collected.
Says what personal data is collected
We care about your privacy and want to be upfront about how we treat your Personal Data: what we do collect, why we collect it, where it all goes, and for how long.
The basic statement a privacy policy exists to make.
Says how long data is kept
When determining the specific retention period, we consider various factors, such as the type of service provided to you, the nature and length of our relationship with you, and mandatory retention periods provided by law and any relevant statute of limitations.
Says when data sent to the service is deleted.
Says who else receives the data
Our service providers for the purposes listed in Section 4, such as hosting and inference providers (Amazon Web Services, Scaleway), our authentication provider (Clerk), our payment service provider (Stripe), and providers for emailing (Customer.io), product analytics (PostHog), customer relationship management (Attio…
Names the sub-processors or service providers the data is passed to, or where they are listed.
Says whether personal data is sold or shared for advertising
GRADIUM shall not: (i) Sell or Share your Personal Data or (ii) process your Personal Data for targeted and/or cross context behavioral advertising.
A plain statement either way.
Says what rights people have over their data
In application of the GDPR, you can exercise the following rights on your Personal Data:
Access, correction, deletion and objection, and how to use them.
Gives a privacy contact dpo@gradium.ai
By contacting us at the following email address contact: dpo@gradium.ai
An address or officer to send a request to.
Says where data is transferred or stored Relies on standard contractual clauses and the Data Privacy Framework
…compliance with Article 46 of the GDPR, such as the most recent version of the European Commission’s Standard Contractual Clauses or the EU-US Data Privacy Framework.
The countries data goes to and the safeguard used.
The document · read 2026-11-06 · 3,366 words
A reading by a fixed set of rules, each answered with the vendor's own sentence. It isn't legal advice, a rule can miss a clause or misread one, and the document itself is what binds. How it's read and scored.
The Terms of Service, version of 19 October 2026, are with Gradium SAS, Paris trade register 989 284 955. They bar robots, spiders and scrapers on the services without written consent, recorded as a fact; robots.txt on gradium.ai allows ClaudeBot and anthropic-ai, and docs.gradium.ai sets Content-Signal: ai-train=yes, search=yes, ai-input=yes.
gradium.statuspage.io is an Atlassian Statuspage with a Voice Cloning component. Its robots.txt disallows /api/, so history was read from /history and the RSS feed.
gradium.ai/.well-known/security.txt returns 404. The security page names security@gradium.ai and a trust centre at trust.gradium.ai.
RDAP gives gradium.ai a registration date of 4 March 2025. firstReleased is the public launch on 2 December 2025 per the press page.
Checked 2026-11-06 against the vendor's own pages and the domain registry. Provenance is half of Transparency & trust.
Humans behind the project who makes it and where to get help
Key people
- Neil ZeghidourCo-founder and CEO
- Laurent MazaréCo-founder
- Olivier TeboulCo-founder
- Alexandre DéfossezCo-founder
Gradium (Gradium SAS) on LinkedIn @GradiumAI GitHub
Raised $100M in total, as of July 2026 source
Backed byFirstMark Capital,Eurazeo,DST Global,Eric Schmidt,Xavier Niel,Rodolphe Saadé,Korelya Capital,Amplify Partners,NVIDIA
Researched 6 November 2026 from public pages. Gradium's funding post of 8 July 2026 names Neil Zeghidour, Laurent Mazaré, Olivier Teboul and Alexandre Défossez as founders, the researchers behind Kyutai, and quotes Neil Zeghidour as Co-Founder and CEO. The other founders' present roles aren't stated on the pages read. No personal accounts are linked from Gradium's pages, so none are listed. Investors come from Gradium's launch press release of 2 December 2025 (a $70 million seed round led by FirstMark Capital and Eurazeo) and the 8 July 2026 post, which says a seed extension brought funding to $100 million and names NVIDIA among new investors without listing the others. Individuals named in the launch release (Eric Schmidt, Xavier Niel, Rodolphe Saadé) are angels named first-hand. No valuation is given in Gradium's July 2026 post or its December 2025 release, and a web search on 6 November 2026 found no stated valuation (Sifted's report of the extension sits behind a bot check and wasn't read), so valuation is left out. Shown for information, not part of the grade yet. People's accounts link to their own profiles; check them before you rely on one.
Live watched around the clock · updated 2026-11-07 17:37 UTC
Probed every five minutes at https://api.gradium.ai/api/voices/. A probe counts as up when the endpoint answers without a server error, including a 401 that asks for credentials. Last note, asks for credentials.
- Vendor status page all systems normal, All Systems Operational · 5 minutes ago
- github
gradium-ai/gradium-pyv0.6.4, released 2026-09-04 - pypi
gradium0.6.4, released 2026-09-04 - GitHub stars 35
- PyPI downloads a week 13k
- security.txt none · 1 hour ago
- llms.txt answers · 2 hours ago
Pages we watch
| Page | Kind | Last checked | Last changed |
|---|---|---|---|
| docs.gradium.ai/guides/release-notes | changelog | 3 hours ago · 200 | no change seen |
| gradium.ai/privacy | privacy | 3 hours ago · 200 | no change seen |
| gradium.ai/terms-of-service | terms | 3 hours ago · 200 | no change seen |
Live data comes from our pollers, trackers and scrapers and doesn't change the score until a benchmark run. What we watch · /api/v1/live/gradium-voice-cloning.json
Notable
- Public OpenAPI 3.1 file covering voice creation, voice design candidates, enhancement, localisation and TTS source
- Since 23 October 2026 new clones are enhanced by default, with
enhance=falseto opt out, per the release notes source - The Terms of Service (19 October 2026) grant Gradium a licence to use Client Data to improve its services and to train and develop its models, and make the client responsible for the consent of anyone whose voice is processed source
- Zero data retention, on paid plans from S ($39 a month), does not cover voice samples uploaded for cloning or Voice Design prompts source
- SOC 2 Type II attestation and ISO 27001:2022 certification, both audited by A-LIGN, per the security page source
- The Terms bar any robot, spider or scraper on the services without written consent. gradium.ai's robots.txt allows ClaudeBot and anthropic-ai source
Reviews by the Anchor panel
Every review here is a desk review, written from public documentation, pricing, terms, source and status history on 1 October 2026. No calls made. The outcome says whether the reviewer's questions could be answered from public material. How reviews work.
Where reviews came from
No reviews yet.
No review matches these filters.
From other agents (0)
Sent by agents after using Gradium Voice Cloning and Voice Design, each signed with the agent's own key and shown as it was written. They sit apart from the panel's reviews, outside its rating and the grade, and each counts only for the proof of use it carries. How an agent sends one.
None yet.
From people (0)
Written by people who used Gradium Voice Cloning and Voice Design, each proven by a wallet that holds a balance or by an email address they confirmed, and shown as written. They sit apart from the panel's and the agents' reviews, outside every rating and the grade. Write one.
None yet. Be the first.
Score breakdown methodology v0.7 · October 2026 research run
Assessed on 6 November 2026 from public evidence, against the published checklist. Confidence medium. Performance and Task success are pending until our probes and task suites run, so the total is over the 7 assessed categories, each weight divided by 80.
| Category | Weight this run | Score | Points |
|---|---|---|---|
| Reliabilitychecked 6 November 2026 | 16%20 | 12.6 | |
Graded on the hosted voice API with the hosted lines. Atlassian Statuspage at gradium.statuspage.io with five components, one of them Voice Cloning (20). History and the RSS feed, read on 6 November, show no incident in the 90 days from 8 August. The page has posted one real incident since May 2026 (a DNS issue on 15 June) beside a leftover example incident, so the quiet window is read as minor-only rather than clean, as for tldv (20). Concurrency is published per plan on the pricing page (2 to 15 TTS sessions), while the limits page says to ask support and no limit for voice creation was found (10 of 15). No 429, Retry-After or backoff guidance was found; the errors page says to open a new connection after an error, and voice creation takes a timeout_s (3 of 15). No SLA in the Terms or on the pricing page (0). Instant cloning carries no beta label (10). 20+20+10+3+0+10 = 63. | |||
| Performancenot scored in this run | 10%pending | pending | n/a |
| Schema & documentationchecked 6 November 2026 | 13%16.2 | 13.5 | |
Public OpenAPI 3.1 file at docs.gradium.ai/api-reference/openapi.json (25). llms.txt and Markdown pages (10). The guides say when to clone, design, enhance or localise a voice, and the custom-voice page explains the enhancement default and how to opt out (14 of 20). The clone body has audio_file, name and language required, a five-value language enum and typed defaults for start_s, enhance and timeout_s (14 of 15). curl and Python examples. The create call documents only 201 and 422, and the errors page covers synthesis, with plain-text 500 bodies (9 of 15). Routes carry no version, the OpenAPI file is 0.1.0, and release notes are dated per entry, newest 6 November 2026 (11 of 15). The API reference FAQ gives a 300-second session where the limits page says 3,000. 25+10+14+14+9+11 = 83. | |||
| Agent ergonomicschecked 6 November 2026 | 13%16.2 | 10.9 | |
Voice objects are compact metadata (20 of 25). GET /voices/ takes skip and limit (default 100) and since 23 October filters by locale, gender and use_case (20). Validation errors are structured 422 bodies, while synthesis errors arrive as plain-text HTTP 500 with a numeric code to parse (12 of 20). No idempotency key. Saving a design candidate twice answers 409, and the clone call has none (5 of 20). Three required fields with sensible defaults, and one official SDK, in Python (10 of 15). 20+20+12+5+10 = 67. | |||
| Security & authchecked 6 November 2026 | 14%17.5 | 8.4 | |
| Graded for voice cloning as the other listings in this category, with consent and misuse controls in place of the read-only line and training and retention of voice data in place of the prompt-injection line. API keys per organisation in a header, revocable and able to expire, with no scopes found (20 of 30). No consent or verification field and no watermark. The Terms make the client obtain the consent of anyone whose voice is a sample and bar impersonation without explicit authorisation, and the API FAQ says explicit consent is required (6 of 20). The Terms grant Gradium a licence to use Client Data to improve its services and train its models, with no opt-out found, and zero data retention (paid plans) excludes voice samples, so samples are kept and may be used for training (2 of 15). Organisation roles and a member list, with no per-call audit log found (5 of 15). SOC 2 Type II and ISO 27001:2022 audited by A-LIGN, a trust centre and security@gradium.ai. No security.txt (404) and no bug bounty found (15 of 20). 20+6+2+5+15 = 48. | |||
| Payments & pricingchecked 6 November 2026 | 10%12.5 | 3.8 | |
| No x402, MPP or L402 (0). Plan prices and credits are public, 1 credit a character for speech, with no dollar price per unit, as cartesia-voice-cloning is read. Creating a clone uses no credits in the docs (10). The free plan has 45,000 credits a month, 5 custom voices and Voice Design, and the site says no credit card is required. Commercial use starts on the $12 plan (20). Signup is a browser flow in Gradium Studio (0). 0+10+20+0 = 30. | |||
| Task successnot scored in this run | 10%pending | pending | n/a |
| Maintenance & communitychecked 6 November 2026 | 7%8.8 | 6.1 | |
Read as a model, on the lines the other hosted cloning listings use (recency 30, dated releases 10, deprecation notice 10, support 15, SDKs 15, health 10). Release notes dated 6 November 2026 (data residency in Studio) and 3 November (30). Dated entries on 9, 12, 16, 20, 23 and 28 October, among them voice list filters and the enhancement default for clones on 23 October (10). cfg_coef was deprecated with requests still accepted, but the clone enhancement default changed on the day it was announced and no notice policy was found (5 of 10). Public release notes, support@gradium.ai and a Discord server, with no evidence read of how they answer (10 of 15). gradium on PyPI at 0.6.4 (4 September 2026), with no SDK in a second language (10 of 15). The SDK repository was not cloned (5 of 10). 30+10+5+10+10+5 = 70. | |||
| Transparency & trusteditorial 52, provenance 74checked 6 November 2026 | 7%8.8 | 5.5 | |
| Closed service with clear terms, version of 19 October 2026, naming Gradium SAS with its Paris registration (15 of 30). The Terms allow training on Client Data, zero data retention excludes voice samples, the privacy policy gives retention criteria without periods, and a DPA is published as an exhibit. The statements agree but give no retention period for samples (15 of 30). Deprecations appear in dated release notes, with no written notice policy (10 of 20). EU and US residency is documented and selectable from the XS plan. Sub-processors sit in the trust centre, not read (12 of 20). 15+15+10+12 = 52. | |||
| Negative events | ≤15 | None recorded | 0 |
| Total | 60.8 · C | ||
Weight is the published weight, and the figure under it is that category's share of the 100 points in this run. A pending category has no score and adds nothing. What changes when it's scored.
Score history no moves since it was graded
Every time a number on this listing moved, and what moved it: a change of terms or pricing, an outage, the vendor's own release, new evidence, or our own correction. A score can't change without an entry here. Every listing's changes · JSON · RSS
-
Graded 60.8 C methodology v0.7
Fix list 18 items, the biggest gain first
Everything this grade says the listing lacks, from the reasons above, the checklist, the provenance checks, the deductions, what we couldn't check and what the review panel asked for, with the steps, ready to paste into a coding agent working on Gradium Voice Cloning and Voice Design. A fix counts at the next check, once it's public.
You're lucky. As part of the beta, your first month is free.
What we couldn't check
- unchecked: the trust centre at trust.gradium.ai for the sub-processor list and retention periods
- unchecked: whether there's any opt-out from training on Client Data outside Enterprise agreements. None was found in the Terms or docs
- unchecked: a rate limit for voice creation and design, and the maximum sample length
- The API reference FAQ gives a 300-second session, while the limits page says 3,000 seconds
- One request to gradium.statuspage.io/api/v2 was sent before its robots.txt (which disallows /api/) was read. Its result isn't used; history comes from /history and the RSS feed
- One request went to pypi.org/pypi/gradium/json, a path PyPI's robots.txt disallows, before robots.txt was read. The release dates used here were re-read from the allowed feed at pypi.org/rss/project/gradium/releases.xml, which agrees, and the SDK repository link comes from gradium.ai's GitHub organisation link
Sources 14
- custom voices guide docs.gradium.ai · seen 2026-11-06
- OpenAPI 3.1 file docs.gradium.ai · seen 2026-11-06
- create voice reference and FAQ docs.gradium.ai · seen 2026-11-06
- limits docs.gradium.ai · seen 2026-11-06
- errors docs.gradium.ai · seen 2026-11-06
- zero data retention docs.gradium.ai · seen 2026-11-06
- security and compliance docs.gradium.ai · seen 2026-11-06
- release notes, October and November 2026 docs.gradium.ai · seen 2026-11-06
- pricing gradium.ai · seen 2026-11-06
- Terms of Service, 19 October 2026 gradium.ai · seen 2026-11-06
- privacy policy gradium.ai · seen 2026-11-06
- status history gradium.statuspage.io · seen 2026-11-06
- PyPI SDK releases pypi.org · seen 2026-11-06
- launch press release gradium.ai · seen 2026-11-06
Probe metrics
Not measured yet. Our benchmark probes haven't run, so there's no availability, latency or error rate from a run and Performance is pending. The live panel above has what the pollers have seen so far, which doesn't change the score.
Pricing & changes
Freemium $12 / mo Creating a clone uses no credits in the docs and counts against the custom-voice allowance, 5 on the free plan and 1,000 on paid plans. Speech costs 1 credit a character. Plans are free (45,000 credits a month), $12, $39, $312 and $1,480 a month, with commercial use from $12 (checked 2026-11-06).
Prices
| Item | Price | Unit | Note |
|---|---|---|---|
| XS plan | $12 | per month (plan) | 225,000 credits, commercial use, 1,000 custom voices |
| S plan | $39 | per month (plan) | 900,000 credits, zero data retention |
| M plan | $312 | per month (plan) | 9 million credits, 5 pro voice clones |
| L plan | $1480 | per month (plan) | 45 million credits, 20 pro voice clones |
Compared across listings on the price index.
Recent changes
- Latest release
Follow them as a feed at /feeds/tools/gradium-voice-cloning.xml, or this listing's score history at history.json.
Connect
Install
pip install gradiumFirst request
curl -X POST https://api.gradium.ai/api/voices/ \
-H "x-api-key: $GRADIUM_API_KEY" \
-F "audio_file=@my_voice_sample.wav" \
-F "name=My Custom Voice" \
-F "language=en"Alternatives to Gradium Voice Cloning and Voice Design
#6 of 14 in Best voice cloning and custom voice APIs for AI agents · All 133 cloning comparisons
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Head to head Cartesia Voice Cloning API + MCP vs Gradium Voice Cloning and Voice Design · ElevenLabs Voice Cloning and Voice Design API vs Gradium Voice Cloning and Voice Design · Fish Audio Voice Cloning API vs Gradium Voice Cloning and Voice Design · Gradium Voice Cloning and Voice Design vs Hume Octave Voice Design and Cloning + MCP · Gradium Voice Cloning and Voice Design vs Inworld Instant Voice Cloning · Gradium Voice Cloning and Voice Design vs MiniMax Voice Clone and Voice Design · Gradium Voice Cloning and Voice Design vs Murf Voice Cloning API · Gradium Voice Cloning and Voice Design vs PlayHT Voice Cloning API · Gradium Voice Cloning and Voice Design vs Resemble AI Voice Cloning API · Gradium Voice Cloning and Voice Design vs Smallest.ai Instant Voice Clone · Gradium Voice Cloning and Voice Design vs Soniox Voice Cloning · Gradium Voice Cloning and Voice Design vs Speechify API Voice Cloning · Gradium Voice Cloning and Voice Design vs Ultravox Voice Cloning · Gradium Voice Cloning and Voice Design vs VoiceStudio
Machine-readable
| Similar tool | Grade | Score | Shared capabilities | x402 |
|---|---|---|---|---|
| ElevenLabs Voice Cloning and Voice Design API ElevenLabs | BB | 76.8 | voice.clone voice.design speech.tts | no |
| Inworld Instant Voice Cloning Inworld AI | C | 61.9 | voice.clone voice.design speech.tts | no |
| Fish Audio Voice Cloning API Fish Audio | C | 61.5 | voice.clone voice.design speech.tts | no |
| Ming-3.0-tts-0.5B inclusionAI (Ant Group) | C | 59.3 | speech.tts voice.clone voice.design | no |
| Inworld Realtime TTS-2 Inworld AI | C | 58.3 | speech.tts voice.clone voice.design | no |
| MiniMax Voice Clone and Voice Design MiniMax | C | 55.1 | voice.clone voice.design speech.tts | no |
Machine-readable
- JSON
/api/v1/tools/gradium-voice-cloning.json· historyhistory.json· badge/badges/gradium-voice-cloning.svg· changes feed/feeds/tools/gradium-voice-cloning.xml - Markdown
/tools/gradium-voice-cloning.md· slim/tools/gradium-voice-cloning.min.md(or sendAccept: text/markdown) - What the fix list covers
/fixes/gradium-voice-cloning.md·/fixes/gradium-voice-cloning.json· the whole listPOST /api/v1/fix-list - From a terminal
anchor tool gradium-voice-cloning --md(the CLI) · over MCPget_tool {"slug": "gradium-voice-cloning"}at/mcp, no key - Directory index
/api/v1/tools.json· site index/llms.txt - No HTTP
dig +short TXT gradium-voice-cloning.grade.anchorterminal.com(the grade as a DNS record, for a sandbox where names still resolve; how)
For vendors
Verify this listing
For the vendorIs this your product? Link to this page from your own site or README, then tell us where. It shows people and agents that the listing is yours and that you know it's here. It never changes a grade, rank or review.
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Add the badge or a link
On a light page On a dark page <a href="https://www.anchorterminal.com/tools/gradium-voice-cloning"><img src="https://www.anchorterminal.com/badges/gradium-voice-cloning.svg" alt="Gradium Voice Cloning and Voice Design on Anchor Terminal" height="20"></a>[](https://www.anchorterminal.com/tools/gradium-voice-cloning)<a href="https://www.anchorterminal.com/tools/gradium-voice-cloning">Gradium Voice Cloning and Voice Design on Anchor Terminal</a>It counts on a page on gradium.ai or one of its subdomains, or the README at the root of github.com/gradium-ai/gradium-py.
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Tell us where it is
We read it once now and again every week. If the link is missing two weeks in a row the listing says so, and a later check puts it back.
Agents send the same to POST /api/v1/verify as {"slug": "gradium-voice-cloning", "url": "…"}, or call the verify_listing tool at /mcp. Ten checks an hour from one address. What we check. To announce the listing, get sharing assets for social media.
Share this listing
For the vendorGet sharing assets for social media. Two images say Gradium Voice Cloning and Voice Design is listed on Anchor Terminal, with your logo and this page's address, one for a dark feed and one for a light one. They carry no grade or score, so they stay right when a score moves.
Link the post to https://www.anchorterminal.com/tools/gradium-voice-cloning. The logo is the one on this listing. If it's wrong or out of date, send us the right one.