# Smallest.ai Instant Voice Clone > Smallest.ai's instant voice cloning API creates a reusable voice for its Lightning text-to-speech models from a 5 to 15 second sample in one multipart POST, returning the voice ID and sample clips of the cloned voice. - Canonical: https://www.anchorterminal.com/tools/smallest-voice-clone - Pricing: https://www.anchorterminal.com/tools/smallest-voice-clone#pricing - Reviews: https://www.anchorterminal.com/tools/smallest-voice-clone#reviews - Markdown: https://www.anchorterminal.com/tools/smallest-voice-clone.md (~7,900 tokens) - Slim: https://www.anchorterminal.com/tools/smallest-voice-clone.min.md (~1,830 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/tools/smallest-voice-clone.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key) - DNS: dig +short TXT smallest-voice-clone.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.. and .vs.. under the zone, and the same under grade.letme.dev) - Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data) - Updated: 2026-11-07 ## Overview **Grade C · 58/100 · rank #768 of 1486 · #8 in Voice cloning & custom voices · not agent-ready · confidence medium** More from Smallest, Inc., listed separately because each is its own product: [Smallest.ai Pulse STT](https://www.anchorterminal.com/tools/smallest-pulse-stt.md) (Speech-to-text), [Smallest.ai Lightning TTS](https://www.anchorterminal.com/tools/smallest-lightning-tts.md) (Text-to-speech). ## Assessment One multipart POST clones a voice from 5 to 15 seconds of audio and returns sample clips, with dated deprecation notices and current changelog entries. The endpoint still defaults to a model whose clones stop working on 30 November 2026, there's no consent field or clone price, and the status feed shows frequent short API outages. ## Facts | Field | Value | | --- | --- | | Vendor | Smallest, Inc. (https://smallest.ai) | | Kind | Model API | | Category | Voice cloning & custom voices (https://www.anchorterminal.com/categories/voice-cloning) | | Transport | HTTP | | Endpoint | `https://api.smallest.ai/waves/v1/voice-cloning` | | Auth | API key · Bearer API key created in the Smallest dashboard after a browser signup, shown once, revoked by deleting it. Keys have no scopes. Short-lived access tokens minted from a key work on TTS, STT and speech-to-speech routes but are not accepted on the cloning endpoint. | | Pricing | Pay per use (Pay per use) · No price per clone is published. Speech from a clone is about $0.175 per 10,000 characters on Lightning v3.1 and $0.195 on v3.1 Pro, pay as you go. The agents pricing page states $10 in free credits. The models pricing table marks voice cloning No on pay as you go, while the docs let any API key clone (checked 2026-11-06). | | x402 | No · No x402, MPP or L402 in the docs, llms.txt or the pricing pages (checked 2026-11-06). | | Licence | Proprietary service under Smallest's Terms of Service. The `smallestai` Python SDK is on PyPI | | Packages | pypi: `smallestai` | | Docs | https://docs.smallest.ai/models/voice-cloning/instant-clone-api | | llms.txt | https://docs.smallest.ai/llms.txt | | Last release | 2026-10-29 | | Surface listed | The instant cloning endpoint `POST /waves/v1/voice-cloning` on api.smallest.ai, read from docs.smallest.ai (guide, API reference, limits, errors, deprecations, changelog), the pricing, terms, privacy and prohibited-use pages, status.smallest.ai and PyPI on 6 November 2026. No account was created and no call was made | | Sample length | 5 to 15 seconds, under 5 MB, as MP3, WAV, MP4 or WebM, one file per clone | | Endpoints | `POST /waves/v1/voice-cloning` (multipart, synchronous, returns sample clips), `GET /waves/v1/voice-cloning` (lists every clone with `modelIds`), `DELETE /waves/v1/lightning-large` (deletes a clone). The older `POST /waves/v1/lightning-large/add_voice` is deprecated | | Models | Clones are made for one pool, `lightning-v3.1` (default, retiring on 30 November 2026) or `lightning-v3.1-pro`, and must be used with the matching TTS model. `lightning-v2` is rejected | | Consent and verification | No consent or verification field in the API. The Terms let Smallest ask for documentation that the speaker authorised the clone and remove voices without it. The prohibited use policy bars unauthorised impersonation | | Voice ownership | The Terms say the customer owns its Input and Smallest assigns its rights in the Output, but the customer may not sell or share Output with third parties for commercial benefit | | Limits | One concurrent TTS request per account on the self-serve plan, 100 TTS requests a minute and 450 million characters a month per the pricing table. A per-organisation clone limit returns `clone limit exceeded, consider upgrading`, with no number published | | Regions | India (Mumbai, api.india.smallest.ai) and USA (Oregon, api.us.smallest.ai), routed by proximity, with region-pinned hostnames | | Data retention | Zero Data Retention and retention windows of 24 hours to 90 days are Enterprise options. No retention period for cloning samples is published | | Legal entity | Smallest, Inc., 311 California Street, Suite 320, San Francisco, under California law per the Terms | | Capabilities | voice.clone, speech.tts | | Tags | hosted, official, closed-source, usage, python, llms-txt, status-page, enterprise, data-residency | | JSON | https://www.anchorterminal.com/api/v1/tools/smallest-voice-clone.json | ## Score breakdown (methodology v0.7, October 2026 research run) Assessed 2026-11-06 from public evidence against the published checklist (https://www.anchorterminal.com/benchmark/#checklist). Confidence: medium. Performance and Task success pending (no score, not in the total); the total is Σ(score × weight) ÷ 80 over the 7 assessed categories. "This run" is each category's share of the 100 points. | Category | Weight | This run | Score (0–100) | Points | | --- | --- | --- | --- | --- | | Reliability | 16% | 20 | 65 | 13.0 | | Performance | 10% | pending | pending | n/a | | Schema & documentation | 13% | 16.2 | 70 | 11.4 | | Agent ergonomics | 13% | 16.2 | 62 | 10.1 | | Security & auth | 14% | 17.5 | 48 | 8.4 | | Payments & pricing | 10% | 12.5 | 20 | 2.5 | | Task success | 10% | pending | pending | n/a | | Maintenance & community | 7% | 8.8 | 72 | 6.3 | | Transparency & trust (editorial 57, provenance 87) | 7% | 8.8 | 72 | 6.3 | | Negative events | up to −15 | up to −15 | none recorded | 0 | | **Total** | | | | **58 → C** | ### Why each score - Reliability 65 (checked 2026-11-06): Graded on the hosted cloning API with the hosted lines. status.smallest.ai is the vendor's own status page with components per region and a dated incident feed (20). The feed, read on 6 November, has dozens of automated outage alerts on the API components in the 90 days from 8 August, most a few minutes long, and a cluster across every API region from 13 to 17 September. The 60-day uptime bars read 99.790 per cent for API USA and 99.849 per cent for API Global. No single outage of an hour was found, but repeated wide outages read as one major episode (10). Rate limits are published for TTS (one concurrent request, 100 a minute on pay as you go), while the per-organisation clone limit has no number (10 of 15). The limits page says to handle 429 gracefully and the clone errors say to retry a timeout, with no Retry-After, backoff figures or idempotency key (5 of 15). The pricing table lists an Enterprise SLA of 99.99 per cent (10). Instant cloning carries no beta label (10). 20+10+10+5+10+10 = 65. - Performance: Pending. Latency is measured per call by our probes, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until the first probe window closes. - Schema & documentation 70 (checked 2026-11-06): The API reference pages are generated with typed fields, enums and error schemas, but no OpenAPI file was found linked from the docs or llms.txt (5 of 25). llms.txt and a Markdown copy of every page (10). The guide says when to use the Pro pool, how to check `modelIds` before synthesis and why a mismatched clone returns empty audio, while the reference still names the retiring default (14 of 20). `model` and `language` are enums validated by the server, with required `displayName` and `file`, a 5 MB limit and MIME types listed, and `tags` as a comma-separated string (12 of 15). Examples in curl, Python and Node.js and a table of seven error cases with causes (14 of 15). Paths under `/v1`, a deprecation page with dated statuses and a models changelog with entries on 21, 24, 26, 28 and 29 October 2026 (15). 5+10+14+12+14+15 = 70. - Agent ergonomics 62 (checked 2026-11-06): The clone response is a compact object with the voice ID, status and signed URLs to sample clips rather than inline audio (20 of 25). The list call returns every clone on the organisation with no pagination or filter found (10 of 20). Errors carry a message and, on 500, an `error_code` enum with a stated fix, such as retrying `voice_clone_timeout` (16 of 20). No idempotency key, and retrying a timeout can leave a duplicate clone, with deletion through an oddly named route (4 of 20). Two required fields. The Python SDK `smallestai` 5.14.0 is current, while the npm package `smallestai` was last published on 16 April 2025 (12 of 15). 20+10+16+4+12 = 62. - Security & auth 48 (checked 2026-11-06): 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. Plain bearer keys, shown once, revocable, with rotation guidance and no scopes. Short-lived access tokens are refused on the cloning endpoint (20 of 30). No consent or verification field. The Terms let Smallest demand proof that the speaker authorised a clone and remove voices without it, and the prohibited use policy bars unauthorised impersonation. No watermark found (6 of 20). The Terms say Smallest won't use User Content or Input to train its services. Zero retention and retention windows are Enterprise options, and no retention period for samples is published (9 of 15). A usage dashboard, with no audit log found (5 of 15). A valid security.txt naming security@smallest.ai and a HIPAA business associate agreement page. The trust centre didn't answer through our proxy, so no certification was confirmed first-hand, and no bug bounty was found (8 of 20). 20+6+9+5+8 = 48. - Payments & pricing 20 (checked 2026-11-06): No x402, MPP or L402 (0). Per-character TTS prices are public, about $0.175 per 10,000 characters on Lightning v3.1, but no price per clone is published and the models pricing table marks voice cloning No on pay as you go, against the docs (10). The agents pricing page states $10 in free credits, and whether a card is needed wasn't established (10 of 20). A person signs up in a browser and creates the key in the dashboard (0). 0+10+10+0 = 20. - Task success: Pending. Task success needs the category task suites run through each tool, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until then. A data provider's data-quality score is published on its listing now and becomes half of this category when it's scored. - Maintenance & community 72 (checked 2026-11-06): 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). The models changelog has entries dated 29 October 2026 (30). Entries on 21, 24, 26, 28 and 29 October and in September (10). The deprecation page dates each retirement, such as `lightning-v3.1` and its clones on 30 November 2026 with steps to migrate, though when the clone retirement was first announced wasn't found (7 of 10). Public changelog, support@smallest.ai and a Discord server, with no evidence read of how they answer (10 of 15). `smallestai` on PyPI released 5.12.3 to 5.14.0 between 1 and 7 October 2026, from a repository under fern-demo. The npm package is stale (10 of 15). Package repositories weren't cloned (5 of 10). 30+10+7+10+10+5 = 72. - Transparency & trust 72 (checked 2026-11-06): Closed service with clear terms naming Smallest, Inc. under California law, effective 21 October 2026 (15 of 30). The Terms rule out training on customer content, the Privacy Policy (18 September 2026) gives retention criteria but no periods, and the Zero Data Retention page is specific about Enterprise options, with nothing on how long cloning samples are kept (16 of 30). A deprecation page with dated statuses (deprecated, rejects, removed, scheduled, retiring) and migration targets (16 of 20). Two regions named with locations. No sub-processor list was found and a DPA page exists unread (10 of 20). 15+16+16+10 = 57. Fix list, everything this grade says the listing lacks, the biggest gain first (18 items). What it covers is at https://www.anchorterminal.com/fixes/smallest-voice-clone.md (JSON https://www.anchorterminal.com/fixes/smallest-voice-clone.json). The whole list for a coding agent comes from `POST https://www.anchorterminal.com/api/v1/fix-list` with `{"listing": "smallest-voice-clone", "plan": "read"}`, free while the beta runs ### What we couldn't check - unchecked: the FAQ answers on the models pricing page (cloning cost, rate limits, audio retention), which the page draws only in a browser - unchecked: whether the $10 free credit needs a card, and the per-organisation clone limit behind `clone limit exceeded` - unchecked: the trust centre (trust.smallest.ai answered 502 through our proxy), so SOC 2 or ISO status wasn't confirmed first-hand - When the 30 November 2026 retirement of `lightning-v3.1` clones was first announced. The models changelog read on 6 November has no entry for it - The pricing table's "Voice Cloning: No" on pay as you go contradicts the docs, which let any API key clone. Recorded, not deducted - The Python SDK's PyPI metadata points to github.com/fern-demo/smallest-ai-python-sdk, not a smallest-inc repository - One request went to pypi.org/pypi/smallestai/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/smallestai/releases.xml, which agrees, and the repository link (fern-demo/smallest-ai-python-sdk) came from that JSON and wasn't re-read ### Sources - instant clone API guide: (seen 2026-11-06) - create voice clone reference: (seen 2026-11-06) - deprecation notices: (seen 2026-11-06) - models changelog: (seen 2026-11-06) - concurrency and limits: (seen 2026-11-06) - API keys: (seen 2026-11-06) - zero data retention: (seen 2026-11-06) - models pricing: (seen 2026-11-06) - agents pricing, free credits: (seen 2026-11-06) - Terms of Service, 21 October 2026: (seen 2026-11-06) - Privacy Policy, 18 September 2026: (seen 2026-11-06) - Prohibited Use Policy: (seen 2026-11-06) - status page and incident feed: (seen 2026-11-06) - security.txt: (seen 2026-11-06) - Python SDK releases: (seen 2026-11-06) - docs index: (seen 2026-11-06) ## Score history Every move of a score since the listing was graded, newest first, with its cause. A score can't move without an entry here. JSON: https://www.anchorterminal.com/api/v1/tools/smallest-voice-clone/history.json - 2026-11-06: graded 58 C (methodology 0.7) ## Who's behind it (provenance 87/100, checked 2026-11-06) | Check | Finding | Points | | --- | --- | --- | | Legal entity named | Smallest, Inc. | 20/20 | | Domain age | smallest.ai, registered 2023-09-02 (3 years) | 7/15 | | Endpoint on the vendor's domain | api.smallest.ai | 15/15 | | Terms of service | read, states 5 of the 7 things a reader expects, and has 1 clause that costs points | 6.3/10 | | Privacy policy | read, states 5 of the 8 things a reader expects | 7.8/10 | | Status page | status.smallest.ai | 10/10 | | Changelog | published | 10/10 | | security.txt | valid | 10/10 | | People named | 2 named with their role, none with a public profile | 7/10 | | Support route | a support address, help pages, a community | 5/5 | The Terms of Service (effective 21 October 2026) name Smallest, Inc. under California law with arbitration. The Privacy Policy and Prohibited Use Policy are effective 18 September 2026. The Prohibited Use Policy bars data mining, robots or scraping except as the site's robots.txt allows. smallest.ai/robots.txt allows ClaudeBot and all agents on the pages read and sets `Content-Signal: ai-train=yes, search=yes, ai-input=yes`. security.txt at smallest.ai/.well-known/security.txt is valid until 31 December 2026, with security@smallest.ai. RDAP gives smallest.ai a registration date of 2 September 2023. trust.smallest.ai did not answer through our proxy (502) and smallest.ai/security returns 404. ### Terms and privacy, as read A reading by a fixed set of rules, each answered with the vendor's own sentence. Not legal advice. **Terms of service** (https://smallest.ai/terms-of-service), read 2026-11-06, gives no date, states 5 of the 7 things a reader expects. - To know. Says the terms or the service can change without notice (costs points). "Because our Services are evolving over time we may change or discontinue all or any part of the Services, at any time and without notice, at our sole discretion." - To know. Says access can be ended without notice or for any reason. "We may suspend or terminate your access to and use of the Services, including suspending access to or terminating your Account, at our sole discretion, at any time and without notice to you." - To know. Requires arbitration or waives class actions. "(a) Mandatory Arbitration of Disputes." - Not found in the text. Gives the date it was last updated. - Names the governing law or courts. The law of Federal Arbitration Act. - States a limit on its liability. Capped at $100.00. - Says how changes to the terms are announced. Gives 30 days of notice before a change. - Not found in the text. Refers to a service level or uptime commitment. **Privacy policy** (https://smallest.ai/privacy-policy), read 2026-11-06, gives no date, states 5 of the 8 things a reader expects. - Not found in the text. Gives the date it was last updated. - Says how long data is kept. For as long as needed, with no period named. - Not found in the text. Says whether personal data is sold or shared for advertising. - Not found in the text. Gives a privacy contact. ## Humans behind the project (researched 2026-11-06 from public pages, not part of the grade) ### Key people - Sudarshan Kamath, Co-founder and CEO - Akshat Mandloi, Co-founder and CTO - Note: Smallest.ai's press kit, read 6 November 2026, says the company was founded by Sudarshan Kamath and Akshat Mandloi and labels them CEO and CTO, and the Series A post of 5 October 2026 quotes Sudarshan Kamath as CEO. SiliconANGLE's report of 9 October 2025 names Kamath as CEO and Mandloi as CTO. The press kit's personal profile links are drawn by script and weren't readable, so no personal accounts are listed. Investors come from Smallest's own Series A post (Seligman Ventures leading, with Sierra Ventures, 3one4 Capital and six others) and SiliconANGLE's report of the $8 million seed round led by Sierra Ventures. Angels in either round aren't named first-hand and are left out. The Series A post says it brings Smallest AI's total funding to more than $21M, which is the total raised. Neither source states a valuation. - Smallest.ai (Smallest, Inc.): LinkedIn https://www.linkedin.com/company/smallest/ X https://x.com/smallest_AI GitHub https://github.com/smallest-inc ### Ownership and investors - Raised: more than $21M in total, as of July 2026 (source https://smallest.ai/blog/series-a-funding-13m-next-generation-voice-ai) - Backed by: Seligman Ventures, Sierra Ventures, 3one4 Capital, Better Capital, Upsparks Capital, Schema Ventures, DeVC, Tiny VC, Mission Street Capital ### Getting support - Discord: https://discord.gg/9WtSXv26WE - Support email: support@smallest.ai - Help: https://docs.smallest.ai/ - Sources: https://smallest.ai/presskit, https://smallest.ai/blog/series-a-funding-13m-next-generation-voice-ai, https://siliconangle.com/?p=714999, https://docs.smallest.ai/models/voice-cloning/instant-clone-api.md, https://smallest.ai/.well-known/security.txt ## Live (updated 2026-11-07 18:20 UTC) - Right now: up, HTTP 401, 378 ms, checked 2026-11-07 18:20 UTC (get on `https://api.smallest.ai/waves/v1/voice-cloning`, asks for auth) - Uptime 24h 100.0% (200 probes) · 30 days 100.0% (200 probes) · p50 361 ms · p95 429 ms - Vendor status page: not read, no machine-readable status found - pypi `smallestai` 5.14.0, released 2026-10-07 - security.txt: valid, expires 2026-12-31T23:59:59.000Z - Always current: https://www.anchorterminal.com/api/v1/live/smallest-voice-clone.json ## 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. Live uptime, where we poll the endpoint, is under Live and doesn't change the score. ## Prices | Item | Price | Unit | Note | | --- | --- | --- | --- | | Speech from a clone, Lightning v3.1 | $17.50 | per 1M characters | about $0.175 per 10,000 characters, pay as you go | | Speech from a clone, Lightning v3.1 Pro | $19.50 | per 1M characters | about $0.195 per 10,000 characters, pay as you go | Across all listings: https://www.anchorterminal.com/prices/index.md ## What a task costs (from the prices above) | Task | Cost | At | | --- | --- | --- | | Narrate a 9,000-character script (about 1,500 words) | $0.16 to $0.18 | Speech from a clone, Lightning v3.1 to Speech from a clone, Lightning v3.1 Pro | The quantity times this listing's own price, from its cheapest item in that unit to its dearest. Plans, minimums and free allowances aren't counted. ## Strengths - Synchronous clone from 5 to 15 seconds of audio that returns the voice ID and signed URLs to sample clips of the new voice - Seven documented error cases with causes, including `voice_clone_timeout` and `voice_clone_error` codes - A deprecation page dates every retirement and gives the migration steps for clones - The Terms say customer content isn't used for training, and India and USA region hostnames are documented - llms.txt and a Markdown copy of every docs page ## Weaknesses - The endpoint defaults to `lightning-v3.1`, whose clones stop working on 30 November 2026 - No consent or verification field, and no price per clone or clone limit published - The pricing table marks voice cloning unavailable on pay as you go, while the docs let any key clone - status.smallest.ai lists dozens of short API outages in 90 days, with a cluster across every region on 13 to 17 September 2026 - No idempotency key, no pagination on the clone list, and plain unscoped API keys ## Before you call it (notes for agents) 1. Always pass `model=lightning-v3.1-pro`. The default `lightning-v3.1` clones stop working on 30 November 2026 2. Use the returned `voiceId` with the matching TTS model and check `modelIds` from `GET /waves/v1/voice-cloning` if a TTS call returns a tiny WAV 3. Before retrying a `voice_clone_timeout`, list clones by `displayName` so a retry doesn't create a duplicate 4. Send the server API key, not an access token. The cloning endpoint refuses short-lived tokens 5. Keep TTS calls from a clone to one at a time on the self-serve plan and back off on 429 ## Connect Install: ```bash pip install smallestai ``` First request: ```bash curl -X POST "https://api.smallest.ai/waves/v1/voice-cloning" \ -H "Authorization: Bearer $SMALLEST_API_KEY" \ -F "displayName=my-custom-voice" \ -F "file=@/path/to/sample.wav" \ -F "model=lightning-v3.1-pro" \ -F "language=en" ``` ## Similar tools Ranked by shared capabilities, then score. Same-category tools with no shared capability key are listed last. | Tool | Grade | Score | Rank | Shared capabilities | x402 | Markdown | | --- | --- | --- | --- | --- | --- | --- | | Speechify API Voice Cloning | BB | 76.9 | 37 | voice.clone, speech.tts | no | https://www.anchorterminal.com/tools/speechify-voice-cloning.md | | ElevenLabs Voice Cloning and Voice Design API | BB | 76.8 | 40 | voice.clone, speech.tts | no | https://www.anchorterminal.com/tools/elevenlabs-voice-cloning.md | | HeyGen Voice | BB | 73.6 | 102 | speech.tts, voice.clone | no | https://www.anchorterminal.com/tools/heygen-voice.md | | Soniox Voice Cloning | B | 68.7 | 274 | voice.clone, speech.tts | no | https://www.anchorterminal.com/tools/soniox-voice-cloning.md | | Inworld Instant Voice Cloning | C | 61.9 | 585 | voice.clone, speech.tts | no | https://www.anchorterminal.com/tools/inworld-voice-cloning.md | | Fish Audio TTS API | C | 61.5 | 601 | speech.tts, voice.clone | no | https://www.anchorterminal.com/tools/fish-audio-tts.md | ## Panel reviews (0) Reviewed by the Anchor panel (https://www.anchorterminal.com/reviewers/index.md): . Desk reviews, written from public documentation, pricing, terms, source and status history on 1 October 2026. No calls made. For a desk review, the outcome says whether the reviewer's questions could be answered from public material: success, partial or failure. How reviews work: https://www.anchorterminal.com/reviews/how-it-works.md ## Notable - The clone endpoint defaults to `model=lightning-v3.1`, and the deprecation page says voice clones made on `lightning-v3.1` stop working on 30 November 2026 at 18:30 UTC. New clones should pass `model=lightning-v3.1-pro` (source: ) - The Terms of Service (effective 21 October 2026) say Smallest may require documentation that the person whose voice is in a recording authorised the clone, and that it won't use User Content or Input to train its services (source: ) - The same Terms say a customer may not sell or share the Output with third parties for commercial benefit (source: ) - Deleting a clone goes through `DELETE /waves/v1/lightning-large` with the voice ID in the body, which the docs say deletes any clone whatever its model (source: ) - status.smallest.ai, read on 6 November 2026, lists dozens of automated outage alerts on the API components in the 90 days from 8 August, most a few minutes long, with a cluster across every API region from 13 to 17 September (source: ) - security.txt at smallest.ai names security@smallest.ai and expires on 31 December 2026 (source: ) - #8 of 14 in Best voice cloning and custom voice APIs for AI agents: https://www.anchorterminal.com/best/voice-cloning/index.md - All 133 cloning comparisons: https://www.anchorterminal.com/compare/voice-cloning/index.md ## Compare - [Cartesia Voice Cloning API + MCP vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-smallest-voice-clone.md): C 58.3 vs C 58 - [ElevenLabs Voice Cloning and Voice Design API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-smallest-voice-clone.md): BB 76.8 vs C 58 - [Fish Audio Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.md): C 61.5 vs C 58 - [Gradium Voice Cloning and Voice Design vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/gradium-voice-cloning-vs-smallest-voice-clone.md): C 60.8 vs C 58 - [Hume Octave Voice Design and Cloning + MCP vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/hume-voice-cloning-vs-smallest-voice-clone.md): C 54.6 vs C 58 - [Inworld Instant Voice Cloning vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/inworld-voice-cloning-vs-smallest-voice-clone.md): C 61.9 vs C 58 - [MiniMax Voice Clone and Voice Design vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/minimax-voice-cloning-vs-smallest-voice-clone.md): C 55.1 vs C 58 - [Murf Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/murf-voice-cloning-vs-smallest-voice-clone.md): C 55.9 vs C 58 - [PlayHT Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/playht-voice-cloning-vs-smallest-voice-clone.md): F 4.1 vs C 58 - [Resemble AI Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/resemble-ai-voice-cloning-vs-smallest-voice-clone.md): D 52.5 vs C 58 - [Smallest.ai Instant Voice Clone vs Soniox Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-soniox-voice-cloning.md): C 58 vs B 68.7 - [Smallest.ai Instant Voice Clone vs Speechify API Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-speechify-voice-cloning.md): C 58 vs BB 76.9 - [Smallest.ai Instant Voice Clone vs Ultravox Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-ultravox-voice-cloning.md): C 58 vs E 40.9 - [Smallest.ai Instant Voice Clone vs VoiceStudio](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-voicestudio.md): C 58 vs D 50.4 ## Verify this listing For the vendor. 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