{ "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "tool": { "slug": "smallest-pulse-stt", "name": "Smallest.ai Pulse STT", "vendor": "Smallest AI", "vendorUrl": "https://smallest.ai", "kind": "model", "category": "speech-to-text", "summary": "Smallest AI's Pulse speech-to-text API transcribes pre-recorded files over HTTP and live audio over WebSocket, with three models (Pulse, Pulse 2.0 and Pulse Pro), diarisation, word timestamps, redaction and turn detection.", "url": "https://www.anchorterminal.com/tools/smallest-pulse-stt", "markdownUrl": "https://www.anchorterminal.com/tools/smallest-pulse-stt.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/smallest-pulse-stt.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/smallest-pulse-stt.json", "dns": "smallest-pulse-stt.grade.anchorterminal.com", "repo": "https://github.com/smallest-inc/smallest-python-sdk", "transports": [ "http", "websocket" ], "packages": [ { "registry": "pypi", "name": "smallestai" }, { "registry": "npm", "name": "smallestai" }, { "registry": "npm", "name": "@developer-smallestai/smallest-mcp-server" } ], "auth": "api-key", "authNotes": "Bearer `sk_` API key created in the dashboard after a browser signup, shared by every model and the Voice Agents API. Keys are shown once, revoked by deleting them and carry no scopes. Servers can mint `wat_` access tokens for browsers (30 to 900 seconds, inference routes only), which the STT socket takes as `?api_key=`.", "pricing": "usage", "pricingNotes": "Pay as you go from $0.003 a minute for Pulse batch, $0.004 for Pulse streaming and $0.005 for Pulse 2.0. Pulse Pro is listed at both $0.0035 and $0.004 a minute. $10 in trial credits. Enterprise pricing, SLA and zero data retention by quote.", "priceSummary": "Pay per use", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, OpenAPI file or pricing page (checked 2026-11-06). Credits are bought with a card on file.", "endpoints": [] }, "toolCount": 0, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://docs.smallest.ai/models/speech-to-text/overview", "llmsTxt": "https://docs.smallest.ai/llms.txt", "openapi": "https://docs.smallest.ai/openapi/models-api.json", "capabilities": [ "speech.stt", "speech.streaming", "speech.batch", "speech.diarisation", "speech.languages" ], "tags": [ "hosted", "usage", "closed-source", "python", "typescript", "openapi", "llms-txt", "streaming", "batch", "webhooks", "mcp", "enterprise", "self-hosted" ], "lastRelease": "2026-11-02", "graded": true, "anchor": { "graded": true, "score": 65, "grade": "B", "agentReady": false, "rank": 441, "ranked": true, "rankOf": 1486, "categoryRank": 13, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 73, "payments": 40, "reliability": 63, "schema": 92, "security": 52, "transparency": 71 }, "pending": [ "performance", "tasks" ], "breakdown": [ { "key": "reliability", "name": "Reliability", "weight": 16, "effectiveWeight": 20, "score": 63, "points": 12.6, "reason": "BetterStack status page at status.smallest.ai with components for the Global, India and USA APIs (one health check covers the Agents and Models APIs), docs, the app and Electron, and per-component history (20). In the 90 days from 8 August the health checks on the shared API failed in all three regions on 9, 10, 13, 14 and 15 September (about 8, 21, 33, 17 and 64 minutes of flapping), in the Global and India regions on 11 and 17 September (12 minutes each), and in the USA region alone on 1, 3, 5, 12, 21 and 30 September (6 to 62 minutes) and 6 October (12 minutes). Outages in every region at once are read as wide errors, so several majors (0). Standard plan limits published per model, 100 concurrent streaming sessions and 25 batch requests a minute, and the pricing page also says 100 concurrent STT streams (15). 429 is documented with exponential backoff from 500 ms to 30 s and Retry-After when present, and batch calls are synchronous with optional webhooks (15). An infrastructure SLA of 99.99 per cent is named for Enterprise only, with no terms published, and the terms disclaim any availability commitment (5 of 10). Pulse, Pulse 2.0 and Pulse Pro carry no preview label, but eleven language codes are marked Beta (8 of 10). 20 + 0 + 15 + 15 + 5 + 8 = 63.", "checked": "2026-11-06" }, { "key": "performance", "name": "Performance", "weight": 10, "effectiveWeight": 0, "pending": true, "points": 0, "reason": "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." }, { "key": "schema", "name": "Schema \u0026 documentation", "weight": 13, "effectiveWeight": 16.25, "score": 92, "points": 14.95, "reason": "OpenAPI 3.1 for the HTTP routes and AsyncAPI 2.6 for the STT socket, with query parameters and event schemas (25). llms.txt and a Markdown copy of every page (10). Model cards and a compare page say which model suits which audio, and fields say where they're ignored (Pulse Pro ignores redaction), but several changelog entries correct response fields the reference had wrong, such as the diarisation shape and a `redacted_entities` array that doesn't exist (15 of 20). Typed query parameters with enums, defaults and required marks, though booleans are string enums that must be lowercase (13 of 15). Examples in curl, Python and JavaScript, and the reference lists 400, 401, 403, 413, 422 and 429 bodies with known `code` values (14 of 15). Versioned `/v1` paths, a deprecations page and a dated Pulse changelog (15). Total 92.", "checked": "2026-11-06" }, { "key": "ergonomics", "name": "Agent ergonomics", "weight": 13, "effectiveWeight": 16.25, "score": 66, "points": 10.73, "reason": "API reading of the checklist. Word timestamps, utterances, diarisation, emotion and gender are each opt-in, so the default response is the transcript with metadata (18 of 25). There are no list endpoints for transcriptions to page. Output controls are the opt-in fields and finalisation settings on the socket (10 of 20). Errors carry a status and a machine-readable `code` or `error_code` (`LANGUAGE_NOT_SUPPORTED_BY_MODEL`, `AudioTooLong` and others) with fixes, but the body comes in two shapes, `message` or `error` (15 of 20). Batch calls are synchronous with no idempotency key, and whether a retried file is billed again isn't stated (10 of 20). A file call needs only the model and audio. Official Python and Node SDKs exist, though the Node SDK was last published in May 2025 (13 of 15). Total 66.", "checked": "2026-11-06" }, { "key": "security", "name": "Security \u0026 auth", "weight": 14, "effectiveWeight": 17.5, "score": 52, "points": 9.1, "reason": "Model reading of the checklist, with training and retention in place of the least-privilege and injection lines. Plain `sk_` keys per organisation, shown once, revoked at once and deletable, with one key per environment advised. The docs say a key grants full account access, and no scope is offered. Short-lived access tokens (`wat_`, 30 to 900 seconds) cover only inference routes and can't mint tokens (22 of 30). The error reference documents the key as a `?token=` query parameter for browser WebSockets, and the token guide passes access tokens as `?api_key=` on the STT socket, so 10 off (12 of 30). The terms (21 October 2026) say Smallest won't use user content or input to train or improve its services. The privacy policy (18 September 2026) lists improving the services with machine learning as a use of usage data and doesn't address uploaded audio or text either way (15 of 20). Zero data retention and the `x-expire-content` header are Enterprise only, or a $1,000 a month HIPAA add-on on pay as you go. Other plans keep content readable in logs and the dashboard, with no retention period published (5 of 15). Usage is tracked per key, request rows sit in a dashboard log viewer, and every response carries `x-request-id`. No audit log of key actions was found (10 of 15). security.txt is valid to 31 December 2026 and the site footer claims SOC 2, GDPR and HIPAA compliance, while the pricing page lists SOC 2 compliance only on Enterprise. No bug bounty, disclosure policy or public advisories found (10 of 20). Total 52.", "checked": "2026-11-06" }, { "key": "payments", "name": "Payments \u0026 pricing", "weight": 10, "effectiveWeight": 12.5, "score": 40, "points": 5, "reason": "No x402, MPP or L402 (0). Per-minute prices for each Pulse model published without a login, with two figures for Pulse Pro (20). Pay as you go starts with $10 of trial credits, which the terms also describe, and no page says a card is needed to claim them, read as inworld-tts's free plan was (20). A person signs up in a browser at app.smallest.ai and creates the key in the dashboard, and top-ups go to a card on file (0). Total 40.", "checked": "2026-11-06" }, { "key": "tasks", "name": "Task success", "weight": 10, "effectiveWeight": 0, "pending": true, "points": 0, "reason": "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." }, { "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7, "effectiveWeight": 8.75, "score": 73, "points": 6.39, "reason": "Read as a model. The newest Pulse changelog entry is dated 2 November 2026 (updated Indic benchmarks), and Pulse 2.0 launched within the period (30). Dated Pulse entries on 30 August, 18, 29 and 30 September, 1, 12, 13 and 21 October and 2 November (20). Public changelog, email support and a Discord server, with no evidence read of how they answer (10 of 15). The Python SDK `smallestai` 5.14.0 dates from 7 October with 12 releases since 9 August, but the npm Node SDK has not been published since May 2025 (8 of 15). The Python SDK repository runs CI and release workflows, but has no licence file (5 of 10). Total 73.", "checked": "2026-11-06" }, { "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7, "effectiveWeight": 8.75, "score": 71, "points": 6.21, "note": "editorial 55, provenance 87", "reason": "Closed service with clear terms naming Smallest Inc. under California law (15). The ZDR page is specific about what each mode keeps, but the terms' no-training clause and the privacy policy's machine-learning use of usage data sit side by side, the privacy policy gives no retention periods, and the policy doesn't mention the DPA a footer link points to (15 of 30). A deprecations page gives statuses, dates and migration targets, deprecated routes return a `Deprecation: true` header, and the 30 September changelog removed 14 European codes from the batch enum with a migration to `multi-eu`. The terms still let Smallest change or discontinue services at any time without notice (15 of 20). Two regions named (Mumbai and Oregon) with region-pinned hosts, and only Google Analytics and Fullstory named among third parties, with no sub-processor list found (10 of 20). Total 55.", "checked": "2026-11-06" } ], "assessment": { "date": "2026-11-06", "basis": "public evidence", "confidence": "medium", "notes": { "ergonomics": "API reading of the checklist. Word timestamps, utterances, diarisation, emotion and gender are each opt-in, so the default response is the transcript with metadata (18 of 25). There are no list endpoints for transcriptions to page. Output controls are the opt-in fields and finalisation settings on the socket (10 of 20). Errors carry a status and a machine-readable `code` or `error_code` (`LANGUAGE_NOT_SUPPORTED_BY_MODEL`, `AudioTooLong` and others) with fixes, but the body comes in two shapes, `message` or `error` (15 of 20). Batch calls are synchronous with no idempotency key, and whether a retried file is billed again isn't stated (10 of 20). A file call needs only the model and audio. Official Python and Node SDKs exist, though the Node SDK was last published in May 2025 (13 of 15). Total 66.", "maintenance": "Read as a model. The newest Pulse changelog entry is dated 2 November 2026 (updated Indic benchmarks), and Pulse 2.0 launched within the period (30). Dated Pulse entries on 30 August, 18, 29 and 30 September, 1, 12, 13 and 21 October and 2 November (20). Public changelog, email support and a Discord server, with no evidence read of how they answer (10 of 15). The Python SDK `smallestai` 5.14.0 dates from 7 October with 12 releases since 9 August, but the npm Node SDK has not been published since May 2025 (8 of 15). The Python SDK repository runs CI and release workflows, but has no licence file (5 of 10). Total 73.", "payments": "No x402, MPP or L402 (0). Per-minute prices for each Pulse model published without a login, with two figures for Pulse Pro (20). Pay as you go starts with $10 of trial credits, which the terms also describe, and no page says a card is needed to claim them, read as inworld-tts's free plan was (20). A person signs up in a browser at app.smallest.ai and creates the key in the dashboard, and top-ups go to a card on file (0). Total 40.", "reliability": "BetterStack status page at status.smallest.ai with components for the Global, India and USA APIs (one health check covers the Agents and Models APIs), docs, the app and Electron, and per-component history (20). In the 90 days from 8 August the health checks on the shared API failed in all three regions on 9, 10, 13, 14 and 15 September (about 8, 21, 33, 17 and 64 minutes of flapping), in the Global and India regions on 11 and 17 September (12 minutes each), and in the USA region alone on 1, 3, 5, 12, 21 and 30 September (6 to 62 minutes) and 6 October (12 minutes). Outages in every region at once are read as wide errors, so several majors (0). Standard plan limits published per model, 100 concurrent streaming sessions and 25 batch requests a minute, and the pricing page also says 100 concurrent STT streams (15). 429 is documented with exponential backoff from 500 ms to 30 s and Retry-After when present, and batch calls are synchronous with optional webhooks (15). An infrastructure SLA of 99.99 per cent is named for Enterprise only, with no terms published, and the terms disclaim any availability commitment (5 of 10). Pulse, Pulse 2.0 and Pulse Pro carry no preview label, but eleven language codes are marked Beta (8 of 10). 20 + 0 + 15 + 15 + 5 + 8 = 63.", "schema": "OpenAPI 3.1 for the HTTP routes and AsyncAPI 2.6 for the STT socket, with query parameters and event schemas (25). llms.txt and a Markdown copy of every page (10). Model cards and a compare page say which model suits which audio, and fields say where they're ignored (Pulse Pro ignores redaction), but several changelog entries correct response fields the reference had wrong, such as the diarisation shape and a `redacted_entities` array that doesn't exist (15 of 20). Typed query parameters with enums, defaults and required marks, though booleans are string enums that must be lowercase (13 of 15). Examples in curl, Python and JavaScript, and the reference lists 400, 401, 403, 413, 422 and 429 bodies with known `code` values (14 of 15). Versioned `/v1` paths, a deprecations page and a dated Pulse changelog (15). Total 92.", "security": "Model reading of the checklist, with training and retention in place of the least-privilege and injection lines. Plain `sk_` keys per organisation, shown once, revoked at once and deletable, with one key per environment advised. The docs say a key grants full account access, and no scope is offered. Short-lived access tokens (`wat_`, 30 to 900 seconds) cover only inference routes and can't mint tokens (22 of 30). The error reference documents the key as a `?token=` query parameter for browser WebSockets, and the token guide passes access tokens as `?api_key=` on the STT socket, so 10 off (12 of 30). The terms (21 October 2026) say Smallest won't use user content or input to train or improve its services. The privacy policy (18 September 2026) lists improving the services with machine learning as a use of usage data and doesn't address uploaded audio or text either way (15 of 20). Zero data retention and the `x-expire-content` header are Enterprise only, or a $1,000 a month HIPAA add-on on pay as you go. Other plans keep content readable in logs and the dashboard, with no retention period published (5 of 15). Usage is tracked per key, request rows sit in a dashboard log viewer, and every response carries `x-request-id`. No audit log of key actions was found (10 of 15). security.txt is valid to 31 December 2026 and the site footer claims SOC 2, GDPR and HIPAA compliance, while the pricing page lists SOC 2 compliance only on Enterprise. No bug bounty, disclosure policy or public advisories found (10 of 20). Total 52.", "transparency": "Closed service with clear terms naming Smallest Inc. under California law (15). The ZDR page is specific about what each mode keeps, but the terms' no-training clause and the privacy policy's machine-learning use of usage data sit side by side, the privacy policy gives no retention periods, and the policy doesn't mention the DPA a footer link points to (15 of 30). A deprecations page gives statuses, dates and migration targets, deprecated routes return a `Deprecation: true` header, and the 30 September changelog removed 14 European codes from the batch enum with a migration to `multi-eu`. The terms still let Smallest change or discontinue services at any time without notice (15 of 20). Two regions named (Mumbai and Oregon) with region-pinned hosts, and only Google Analytics and Fullstory named among third parties, with no sub-processor list found (10 of 20). Total 55." }, "sources": [ { "what": "status page and incident history (JSON)", "url": "https://status.smallest.ai/index.json", "seen": "2026-11-06" }, { "what": "concurrency and limits", "url": "https://docs.smallest.ai/api-reference/concurrency-and-limits.md", "seen": "2026-11-06" }, { "what": "model pricing", "url": "https://smallest.ai/pricing/models", "seen": "2026-11-06" }, { "what": "plans and free credits", "url": "https://docs.smallest.ai/overview/administration/subscription-plans.md", "seen": "2026-11-06" }, { "what": "terms of service", "url": "https://smallest.ai/terms-of-service", "seen": "2026-11-06" }, { "what": "privacy policy", "url": "https://smallest.ai/privacy-policy", "seen": "2026-11-06" }, { "what": "zero data retention", "url": "https://docs.smallest.ai/models/enterprise/zero-data-retention.md", "seen": "2026-11-06" }, { "what": "API keys and access tokens", "url": "https://docs.smallest.ai/api-reference/token-based-authentication.md", "seen": "2026-11-06" }, { "what": "Models API OpenAPI 3.1", "url": "https://docs.smallest.ai/openapi/models-api.json", "seen": "2026-11-06" }, { "what": "Models API AsyncAPI 2.6", "url": "https://docs.smallest.ai/asyncapi/models-api.json", "seen": "2026-11-06" }, { "what": "model error reference", "url": "https://docs.smallest.ai/models/troubleshooting/error-reference.md", "seen": "2026-11-06" }, { "what": "model deprecation notices", "url": "https://docs.smallest.ai/api-reference/deprecations/models.md", "seen": "2026-11-06" }, { "what": "Python SDK releases on PyPI", "url": "https://pypi.org/rss/project/smallestai/releases.xml", "seen": "2026-11-06" }, { "what": "security.txt", "url": "https://smallest.ai/.well-known/security.txt", "seen": "2026-11-06" }, { "what": "Pulse STT overview", "url": "https://docs.smallest.ai/models/speech-to-text/overview.md", "seen": "2026-11-06" }, { "what": "Pulse model card", "url": "https://docs.smallest.ai/model-cards/speech-to-text/pulse.md", "seen": "2026-11-06" }, { "what": "Pulse changelog", "url": "https://docs.smallest.ai/changelog/pulse-stt.md", "seen": "2026-11-06" }, { "what": "transcribe API reference", "url": "https://docs.smallest.ai/api-reference/models/speech-to-text/transcribe.md", "seen": "2026-11-06" } ], "openQuestions": [ "PyPI's JSON API (pypi.org/pypi/smallestai/json), which pypi.org/robots.txt disallows, was fetched once by mistake on 6 November. Release dates were re-read from the allowed RSS feed, and nothing taken only from the JSON is used.", "unchecked: whether signup asks for a card before the $10 trial credits", "unchecked: open issues and maintainer replies on the SDK repositories, because the GitHub API refused our requests for its rate limit", "The pricing page gives two prices for Pulse Pro, $0.0035 and $0.004 a minute", "unchecked: whether a retried or failed transcription is billed" ] }, "negative": 0, "verdict": "Pulse covers files and live audio on one endpoint, with OpenAPI and AsyncAPI files, a dated changelog and public per-minute prices from $0.003. The shared API's health checks failed in every region on five days in September, keys carry no scopes and can travel in a URL, and zero retention is Enterprise only.", "bestFor": "Low-cost transcription for voice agents and call analytics, with Indic coverage and turn detection.", "strengths": [ "OpenAPI 3.1 and AsyncAPI 2.6 files cover the batch route and the streaming socket, with llms.txt and Markdown copies of every page", "Public prices of $0.003 a minute for batch, $0.004 for streaming and $0.005 for Pulse 2.0, with $10 of trial credits", "Dated Pulse changelog with nine entries between 30 August and 2 November 2026", "Opt-in diarisation, word timestamps, PII and PCI redaction, keyword boosting and turn detection on the same endpoint", "Region-pinned hosts in Mumbai and Oregon for data residency" ], "weaknesses": [ "Health checks on the shared API failed in all three regions on 9, 10, 13, 14 and 15 September 2026, the longest about 64 minutes", "Keys grant full account access with no scopes, and the docs pass keys or tokens as URL query parameters on WebSockets", "Zero data retention is Enterprise only or a $1,000 a month add-on, and no retention period is published for other plans", "No published SLA below Enterprise, and the terms allow changes or discontinuation without notice", "Several changelog entries correct response fields the reference had documented wrongly" ], "agentNotes": [ "Pass `?model=` on every call, since a missing model returns 400; use `pulse-pro` for English files and `pulse` for other languages or streaming", "Send booleans such as `diarize` and `word_timestamps` as the lowercase strings \"true\" or \"false\"", "Retry 429 with backoff from 500 ms up to 30 s and honour Retry-After; keep within 25 batch requests a minute on the Standard plan", "Use the region-pinned host api.us.smallest.ai or api.india.smallest.ai when the audio must stay in one region", "Read speaker labels only from final events, because interim streaming events carry no `words[]`" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 65 } ], "editorialScores": { "ergonomics": 66, "maintenance": 73, "payments": 40, "reliability": 63, "schema": 92, "security": 52, "transparency": 55 }, "provenanceScore": 87, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 }, "scoreHistory": [ { "date": "2026-11-06", "grade": "B", "kind": "listed", "method": "0.7", "score": 65 } ] }, "connect": { "install": "pip install smallestai", "http": "curl -X POST \"https://api.smallest.ai/waves/v1/stt/?model=pulse\u0026language=en\" \\\n -H \"Authorization: Bearer $SMALLEST_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"url\": \"https://github.com/smallest-inc/cookbook/raw/main/speech-to-text/getting-started/samples/audio.wav\"}'", "claudeCode": "claude mcp add smallest -- npx -y @developer-smallestai/smallest-mcp-server" }, "letme": { "capability": "https://letme.dev/speech.stt", "tool": "https://letme.dev/smallest-pulse-stt" }, "sameCompany": [ "smallest-lightning-tts", "smallest-voice-clone" ], "notable": [ "One endpoint, `POST /waves/v1/stt/?model=pulse|pulse-pro` for files and `wss://api.smallest.ai/waves/v1/stt/live?model=pulse|pulse-2` for live audio (https://docs.smallest.ai/models/speech-to-text/overview.md)", "Pulse 2.0 (`pulse-2`) is English-only streaming with built-in end-of-turn detection, emotion and gender on by default, at $0.005 a minute (https://docs.smallest.ai/changelog/pulse-stt)", "OpenAPI 3.1 for the HTTP routes and AsyncAPI 2.6 for the TTS, STT and speech-to-speech sockets (https://docs.smallest.ai/openapi/models-api.json, https://docs.smallest.ai/asyncapi/models-api.json)", "Standard plan limits are 100 concurrent streaming sessions and 25 batch requests a minute per model (https://docs.smallest.ai/model-cards/speech-to-text/pulse.md)", "Dated Pulse changelog entries from 30 August to 2 November 2026, several of them corrections that bring the docs in line with what the API sends (https://docs.smallest.ai/changelog/pulse-stt)", "Pulse and Lightning can be self-hosted on Docker or Kubernetes under an enterprise licence key (https://docs.smallest.ai/models/self-host/getting-started/introduction.md)" ], "area": "voice", "details": [ { "label": "Surface listed", "value": "The Pulse speech-to-text routes of the Models API at api.smallest.ai/waves/v1, read from docs.smallest.ai (Markdown pages, llms.txt, OpenAPI and AsyncAPI files, changelog), smallest.ai pricing, terms and privacy pages and status.smallest.ai on 6 November 2026. No account was made and no request was sent to the API" }, { "label": "Models", "value": "`pulse` (multilingual, streaming and batch), `pulse-2` (English streaming with end-of-turn, emotion and gender) and `pulse-pro` (English batch only, which the vendor says is tied second on the Open ASR Leaderboard at 5.42% WER)" }, { "label": "Languages", "value": "Streaming takes 21 single-language codes plus `north_indic`, `multi-asian` and `multi-south-indic`. Batch takes 12 codes plus `multi-eu`, `multi-asian` and `multi-indic`. Eleven languages are labelled Beta, and East Asian streaming runs from the US region" }, { "label": "Options", "value": "Word timestamps, utterances, diarisation with integer speaker labels, PII and PCI redaction (Pulse only), keyword boosting up to 100 terms, emotion and gender detection, inverse text normalisation, VAD events and webhooks for batch results" }, { "label": "Regions", "value": "Mumbai and Oregon, routed by proximity, with region-pinned hosts api.india.smallest.ai and api.us.smallest.ai" }, { "label": "MCP server", "value": "`@developer-smallestai/smallest-mcp-server` 0.11.2 (MIT, npm) runs locally with npx and mostly manages voice agents, with a `transcribe_audio` tool among about 80" }, { "label": "Other products", "value": "Lightning text to speech (listed separately), Hydra speech to speech, the Electron LLM, voice cloning and the Atoms voice agent platform share the same key and quota" }, { "label": "SDKs", "value": "Python `smallestai` 5.14.0 (7 October 2026). The npm `smallestai` Node SDK is at 1.0.1, last published in May 2025" } ], "unitPrices": [ { "item": "Pulse pre-recorded", "unit": "audio-minute", "usd": 0.003, "note": "pay as you go" }, { "item": "Pulse streaming", "unit": "audio-minute", "usd": 0.004, "note": "pay as you go" }, { "item": "Pulse Pro pre-recorded", "unit": "audio-minute", "usd": 0.0035, "note": "the pricing page also shows $0.004" }, { "item": "Pulse 2.0 streaming", "unit": "audio-minute", "usd": 0.005, "note": "Standard plan, per the Pulse changelog" } ], "taskCosts": { "units": [ { "task": "transcribe-hour", "name": "Transcribe a one-hour meeting", "unit": "audio-minute", "quantity": 60, "lowUsd": 0.18, "highUsd": 0.3, "lowItem": "Pulse pre-recorded", "highItem": "Pulse 2.0 streaming" } ], "note": "The quantity times this listing's own unit price, its cheapest item to its dearest. Plans, minimums and free allowances aren't counted." }, "provenance": { "legalEntity": "Smallest, Inc.", "domain": "smallest.ai", "domainRegistered": "2023-09-02", "endpointOnVendorDomain": true, "terms": "https://smallest.ai/terms-of-service", "privacy": "https://smallest.ai/privacy-policy", "statusPage": "https://status.smallest.ai/", "changelog": "https://docs.smallest.ai/changelog/models", "securityTxt": "valid", "checked": "2026-11-06", "notes": [ "The terms of service (effective 21 October 2026) name Smallest Inc., 311 California Street, Suite 320, San Francisco, under California law. The privacy policy (effective 18 September 2026) names Smallest, Inc. with a registered office in Lewes, Delaware.", "The terms forbid accessing or searching the services with spiders, robots, crawlers or similar data mining tools except through means Smallest makes available. Only public pages were read, with no account.", "smallest.ai/robots.txt allows all crawlers including ClaudeBot, with Content-Signal ai-train=yes, search=yes, ai-input=yes. docs.smallest.ai/robots.txt allows all paths except /api/fern-docs/.", "/.well-known/security.txt names security@smallest.ai and expires 31 December 2026. /security.txt returns 404.", "RDAP gives smallest.ai a registration date of 2 September 2023.", "Every docs page served as Markdown opens with a block addressed to AI assistants that says which models to prefer. It was read as data, not followed.", "firstReleased is left empty. No dated launch of the Models API was found on a page our reader may fetch." ], "score": 87, "checks": [ { "check": "Legal entity named", "value": "Smallest, Inc.", "points": 20, "max": 20, "state": "ok" }, { "check": "Domain age", "value": "smallest.ai, registered 2023-09-02 (3 years)", "points": 7, "max": 15, "state": "part" }, { "check": "Endpoint on the vendor's domain", "value": "smallest.ai", "points": 15, "max": 15, "state": "ok" }, { "check": "Terms of service", "value": "read, states 5 of the 7 things a reader expects, and has 1 clause that costs points", "points": 6.3, "max": 10, "state": "part" }, { "check": "Privacy policy", "value": "read, states 5 of the 8 things a reader expects", "points": 7.8, "max": 10, "state": "part" }, { "check": "Status page", "value": "status.smallest.ai", "points": 10, "max": 10, "state": "ok" }, { "check": "Changelog", "value": "published", "points": 10, "max": 10, "state": "ok" }, { "check": "security.txt", "value": "valid", "points": 10, "max": 10, "state": "ok" }, { "check": "People named", "value": "2 named with their role, none with a public profile", "points": 7, "max": 10, "state": "part" }, { "check": "Support route", "value": "a support address, help pages, a community", "points": 5, "max": 5, "state": "ok" } ], "policies": [ { "kind": "terms", "url": "https://smallest.ai/terms-of-service", "state": "read", "readAt": "2026-11-06", "words": 5971, "points": 6.3, "max": 10, "expected": [ { "key": "terms.date", "label": "Gives the date it was last updated", "found": false }, { "key": "terms.law", "label": "Names the governing law or courts", "found": true, "quote": "These Terms and any action related thereto will be governed by the Federal Arbitration Act, federal arbitration law, and the laws of the State of California, without regard to its conflict of laws provisions.", "says": "The law of Federal Arbitration Act" }, { "key": "terms.liability", "label": "States a limit on its liability", "found": true, "quote": "TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT WILL SMALLEST'S TOTAL CUMULATIVE LIABILITY TO YOU ARISING FROM ALL CLAIMS UNDER OR RELATED TO THESE TERMS OR FROM THE USE OF OR INABILITY TO USE THE SERVICES EXCEED THE AMOUNTS ACTUALLY PAID BY YOU OR PAYABLE BY YOU TO SMALLEST FOR USE OF THE SERVICES, PROVIDED THAT…", "says": "Capped at $100.00" }, { "key": "terms.termination", "label": "Says how the agreement or account can be ended", "found": true, "quote": "If you fail to make any payment when due, late charges will accrue at the rate of 1.5% per month or, if lower, the highest rate permitted by applicable law and Smallest may suspend the Services until all payments are made in full." }, { "key": "terms.changes", "label": "Says how changes to the terms are announced", "found": true, "quote": "Smallest reserves the right to change the fees it charges for the Services, at any time in its sole discretion, provided that Smallest gives you at least 30 days' prior notice of such changes by updating the Pricing Page.", "says": "Gives 30 days of notice before a change" }, { "key": "terms.use", "label": "Lists what users may not do", "found": true, "quote": "If you don't agree to be bound by the changes, you may not use the Services anymore." }, { "key": "terms.sla", "label": "Refers to a service level or uptime commitment", "found": false } ], "toKnow": [ { "key": "terms.nonotice", "label": "Says the terms or the service can change without notice", "found": true, "quote": "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.", "costsPoints": true }, { "key": "terms.cutoff", "label": "Says access can be ended without notice or for any reason", "found": true, "quote": "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." }, { "key": "terms.arbitration", "label": "Requires arbitration or waives class actions", "found": true, "quote": "(a) Mandatory Arbitration of Disputes." } ] }, { "kind": "privacy", "url": "https://smallest.ai/privacy-policy", "state": "read", "readAt": "2026-11-06", "words": 2876, "points": 7.8, "max": 10, "expected": [ { "key": "privacy.date", "label": "Gives the date it was last updated", "found": false }, { "key": "privacy.collected", "label": "Says what personal data is collected", "found": true, "quote": "This Privacy Policy describes the information we collect and explains how we collect, use, disclose, and protect such information, and your choices about the collection and use of your information." }, { "key": "privacy.retention", "label": "Says how long data is kept", "found": true, "quote": "We retain personal information for as long as needed or permitted in light of the purpose(s) for which it was obtained and consistent with applicable law.", "says": "For as long as needed, with no period named" }, { "key": "privacy.processors", "label": "Says who else receives the data", "found": true, "quote": "We may use emailing, analytics, hosting services of a third party as part of the Services we provide to you." }, { "key": "privacy.sale", "label": "Says whether personal data is sold or shared for advertising", "found": false }, { "key": "privacy.rights", "label": "Says what rights people have over their data", "found": true, "quote": "You have the right to object to the processing of your personal information based on grounds specific to your situation if such processing is for direct marketing or is for a purpose based on a legitimate interest or public interest." }, { "key": "privacy.contact", "label": "Gives a privacy contact", "found": false }, { "key": "privacy.transfers", "label": "Says where data is transferred or stored", "found": true, "quote": "We do not generally transfer your personal information outside your jurisdiction of residence." } ] } ] }, "humans": { "slug": "smallest-pulse-stt", "checked": "2026-11-06", "company": "Smallest AI (Smallest, Inc.)", "people": [ { "name": "Sudarshan Kamath", "role": "Co-founder and CEO", "founder": true, "page": "/people/sudarshan-kamath/" }, { "name": "Akshat Mandloi", "role": "Co-founder and CTO", "founder": true, "page": "/people/akshat-mandloi/" } ], "peopleNote": "Smallest AI's press kit, read 6 November 2026, names Sudarshan Kamath as co-founder and CEO and Akshat Mandloi as co-founder and CTO, and says the two worked together on Bosch's autonomous vehicles team. 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