Speech and Voice AI
Frontier, coverage by voice-agent frameworks and the model hub over stt, tts and realtime speech. The Kin Score Market layer reads each provider in its market: who it integrates with, how deep those integrations go, and where the market publishes its own structure. Methodology.
Where this market publishes its structure
- Pipecat services (src/pipecat/services, stt/tts/realtime files) machine-readable
- LiveKit Agents plugins (livekit-plugins/*, stt/tts/realtime files) machine-readable
- Hugging Face /api/models pipeline_tag text-to-speech + automatic-speech-recognition machine-readable, 688 of 700 orgs are research labs, individuals or re-quantizers: counted, never linked
- LiteLLM model_prices json (audio_speech, audio_transcription) machine-readable, router count only; edges owned by sweep-model-routing.py
- Vapi / Retell provider lists not machine-readable: docs pages, not machine-readable
Own = declares at least one integration itself; covered = visible only because an aggregator, standards body, regulator or partner contract names it; distribution-only = listed only on cloud marketplaces it sells through, a channel reported beside, never counted as its own declared integrations; undeclared = nothing we can read, so no number; declares_compatibility = providers with a `compatible` shape vote, report only (kin, 2026-10-13): never counted as own, never in depth or position.
Taxonomy how this market maps onto apis.io
Derived 2026-10-23 from the 49 providers in this market we could resolve in the catalog. The percentage is the share of those providers carrying each one; it describes the market, not the tag or industry. Tag groups have no page of their own yet, so they are listed unlinked.
| Tags | Real-Time 45%, Text-to-Speech 43%, Voice 39%, LLM 29%, Voice AI 27%, Speech-to-Text 27%, Audio 20%, Inference 20%, Transcription 20% |
|---|---|
| Tag groups | Real-Time 47%, Text-to-Speech 43%, Messaging 39%, Conversational AI 39%, LLM 37%, Transcription 33%, Audio 22%, MCP 20% |
| Industries | Artificial Intelligence 98%, Telecommunications & Connectivity 41%, Music, Audio & Creator Economy 22% |
| Areas | Machine Learning 33%, Agents 12% |
| Capabilities | Information & Data Management 24% |
share of resolved cohort carrying it; tags >=0.20 & >=3 members (max 12, junk dropped), tag_groups >=0.20 (cooccurrence, non-cross-cutting; max 8), industries >=0.20 (max 6), areas >=0.10 (max 6; areas are keyword-matched and sparse), capabilities L1 >=0.20 (max 8); derive-market-taxonomy.py
Leaders by position (provisional)
Provisional: grouped by position, depth compared within a position only. Distribution (cloud marketplaces) and iPaaS bridges are counted beside position, never inside it. Unknown-builder listings are left out of position shares and counted here.
builds-on 1 · publishes apps on other platforms' stores
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Resemble AI | 46.2 | 8 | 0 / 8 | 0 | 0 | 1 | ipaas-bridge 12%, covered 38%, builds-on-platform 50% |
covered 42 · reached mainly through aggregators
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Fireworks AI | 51.8 | 11 | 0 / 11 | 0 | 0 | 1 | ipaas-bridge 9%, standard 18%, covered 64%, builds-on-platform 9% |
| Mistral AI | 51.8 | 25 | 0 / 25 | 0 | 3 | 3 | ipaas-bridge 12%, standard 12%, covered 44%, builds-on-platform 20%, distribution 12% |
| xAI | 51.8 | 16 | 0 / 16 | 1 | 1 | 2 | ipaas-bridge 12%, standard 19%, covered 44%, builds-on-platform 12%, distribution 6%, unknown 6% |
| Amazon Bedrock | 51.7 | 8 | 0 / 8 | 0 | 0 | 0 | covered 100% |
| Amazon Transcribe | 51.7 | 3 | 0 / 3 | 0 | 0 | 0 | covered 100% |
| Fish Audio | 51.7 | 3 | 0 / 3 | 0 | 0 | 0 | covered 100% |
| Azure OpenAI Service | 51.7 | 7 | 0 / 7 | 0 | 0 | 0 | covered 100% |
| Neuphonic | 51.7 | 4 | 0 / 4 | 0 | 0 | 0 | covered 75%, builds-on-platform 25% |
| Qwen | 51.7 | 3 | 0 / 3 | 0 | 0 | 0 | covered 100% |
| Together AI | 51.7 | 8 | 0 / 8 | 0 | 0 | 0 | covered 88%, builds-on-platform 12% |
| fal | 49.4 | 12 | 0 / 12 | 0 | 2 | 0 | standard 17%, covered 42%, builds-on-platform 25%, distribution 17% |
| Groq | 49.4 | 13 | 0 / 13 | 1 | 0 | 2 | ipaas-bridge 15%, standard 8%, covered 62%, builds-on-platform 8%, unknown 8% |
| Cartesia | 47.9 | 6 | 0 / 6 | 0 | 1 | 0 | standard 17%, covered 50%, builds-on-platform 17%, distribution 17% |
| NVIDIA NIM | 46.2 | 8 | 0 / 8 | 1 | 0 | 0 | standard 12%, covered 75%, unknown 12% |
| Speechify | 46.0 | 4 | 0 / 4 | 0 | 1 | 0 | covered 50%, builds-on-platform 25%, distribution 25% |
| Gradium | 44.1 | 3 | 0 / 3 | 0 | 1 | 0 | covered 67%, distribution 33% |
| MiniMax | 42.1 | 7 | 0 / 7 | 1 | 0 | 0 | covered 86%, unknown 14% |
| Google Gemini | 41.9 | 9 | 0 / 9 | 1 | 0 | 1 | ipaas-bridge 11%, covered 78%, unknown 11% |
| Smallest AI | 41.3 | 6 | 0 / 6 | 0 | 1 | 1 | ipaas-bridge 17%, covered 33%, builds-on-platform 33%, distribution 17% |
| Amazon Polly | 40.7 | 4 | 0 / 4 | 0 | 0 | 1 | ipaas-bridge 25%, covered 75% |
| Simplismart | 40.2 | 4 | 0 / 4 | 0 | 2 | 0 | covered 25%, builds-on-platform 25%, distribution 50% |
| Hume AI | 37.0 | 3 | 0 / 3 | 0 | 0 | 1 | ipaas-bridge 33%, covered 67% |
| Speechmatics | 37.0 | 3 | 0 / 3 | 0 | 0 | 1 | ipaas-bridge 33%, covered 67% |
| Bland AI | 36.5 | 7 | 0 / 7 | 0 | 1 | 2 | ipaas-bridge 29%, covered 29%, builds-on-platform 29%, distribution 14% |
| Deepgram | 36.2 | 10 | 0 / 10 | 1 | 1 | 2 | ipaas-bridge 20%, covered 40%, builds-on-platform 20%, distribution 10%, unknown 10% |
| Sarvam | 36.2 | 7 | 0 / 7 | 0 | 3 | 1 | ipaas-bridge 12%, covered 38%, builds-on-platform 12%, distribution 38% |
| Google Cloud Speech-To-Text | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 100% |
| Google Cloud Text-To-Speech | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 100% |
| Inworld AI | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 100% |
| Microsoft Cognitive Services | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 100% |
| PyannoteAI | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 50%, builds-on-platform 50% |
| Rime | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 100% |
| Suno | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 50%, builds-on-platform 50% |
| SYSTRAN | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | covered 50%, builds-on-platform 50% |
| AssemblyAI | 31.8 | 23 | 0 / 23 | 1 | 1 | 4 | ipaas-bridge 36%, covered 36%, builds-on-platform 9%, distribution 9%, unknown 9% |
| Camb.AI | 30.3 | 5 | 0 / 5 | 0 | 1 | 2 | ipaas-bridge 33%, covered 33%, builds-on-platform 17%, distribution 17% |
| Gladia | 29.6 | 6 | 0 / 6 | 1 | 0 | 2 | ipaas-bridge 33%, standard 17%, covered 33%, unknown 17% |
| Argmax | 26.8 thin | 2 | 0 / 2 | 0 | 1 | 0 | covered 50%, distribution 50% |
| Fixie | 26.8 thin | 2 | 0 / 2 | 0 | 1 | 0 | covered 50%, distribution 50% |
| SLNG | 26.8 thin | 2 | 0 / 2 | 0 | 1 | 0 | covered 50%, distribution 50% |
| Murf | 25.0 | 4 | 0 / 4 | 0 | 1 | 2 | ipaas-bridge 40%, covered 20%, builds-on-platform 20%, distribution 20% |
| Respeecher | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | covered 100% |
standard 1 · listed by a voluntary standard's own directory
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Nvidia | 61.8 | 23 | 0 / 23 | 0 | 0 | 0 | standard 70%, covered 9%, builds-on-platform 22% |
mixed 5 · no single mode dominates
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| OpenAI | 55.6 | 73 | 0 / 73 | 1 | 6 | 35 | ipaas-bridge 49%, contract 4%, standard 10%, covered 17%, builds-on-platform 10%, distribution 8%, unknown 1% |
| ElevenLabs | 53.0 | 25 | 0 / 25 | 1 | 4 | 3 | ipaas-bridge 12%, contract 4%, standard 19%, covered 23%, builds-on-platform 23%, distribution 15%, unknown 4% |
| Baseten | 51.8 | 13 | 0 / 13 | 0 | 2 | 1 | ipaas-bridge 8%, standard 15%, covered 38%, builds-on-platform 23%, distribution 15% |
| Telnyx | 51.2 | 20 | 0 / 20 | 0 | 5 | 3 | provider-built 14%, ipaas-bridge 14%, standard 10%, coverage 10%, covered 10%, builds-on-platform 19%, distribution 24% |
| LMNT | 37.0 | 3 | 0 / 3 | 0 | 0 | 1 | ipaas-bridge 33%, covered 33%, builds-on-platform 33% |
Frontier timeline DRAFT · report only — not weighted
2026-10-15 anchor shape:
- Shape gravity: 2 providers declare compatibility with the shape in their own contracts.
- Mediation: frameworks and sources cover 49 providers; 2 are covered by every one (mistral, openai).
2026-10-17 anchor shape:
- Shape gravity: 2 providers declare compatibility with the shape in their own contracts.
- Mediation: frameworks and sources cover 49 providers; 2 are covered by every one (mistral, openai).
Generated 2026-10-24 from API Evangelist's own files; nothing on this page is a model's judgement. Provisional and unweighted; not part of the Kin Score composite or agent readiness. Read the Market layer methodology. Disagree with an edge? Every edge cites its evidence and can be corrected through the normal correction path.