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Automated best-of radar

Best Paid Speech-to-text options.

Candidates with a source-backed paid API, usage-based hosted API, or enterprise access path. Automated radar ranking for ASR, transcription, diarization, and real-time speech-to-text models and APIs. Rankings use existing source-backed radar data and do not invent prices, benchmark scores, release dates, or capabilities.

Candidates
13
matched automatically
Top fit
100
OpenAI Audio Speech-to-Text
Sources
24
canonical links retained
Access
Paid API
filtered automatically
Updated
Sep 25, 2026
waiting for more evidence
All19Free/open13Paid API13Open source7

Speech-to-text decision paths

Methodology
Best Speech-to-textspeech-to-text API, real-time transcription, Turkish audio, diarization, and call centers.Free Speech-to-textFree tier, trial, open-weight, downloadable, or self-hosted signals when sources support them.Open-source Speech-to-textOpen-source, open-weight, downloadable, or self-hosted candidates with retained source URLs.Paid API Speech-to-textHosted API and enterprise access paths without invented prices, limits, or benchmark claims.Compare Speech-to-textSide-by-side verdicts, source coverage, freshness, access labels, and evidence caveats.Track Speech-to-textGet private RSS alerts and API-access interest for this decision space as the radar updates.
Best overall radar pick

OpenAI Audio Speech-to-Text

Highest automated fit score using source-backed task evidence and radar signals.

Score100serviceOpenAI
Best API or hosted option

OpenAI Audio Speech-to-Text

Strong candidate when the source metadata indicates API or hosted-service availability.

Score100serviceOpenAI
Best open-source option

NVIDIA Riva

Strong candidate when open weights, GitHub, permissive license, or self-hosting signals are visible.

Score81serviceNVIDIA
#CandidateTypeAccessSourceFitUpdatedWhy it matchedEvidence
01OpenAI Audio Speech-to-TextOpenAI API serviceservicePaid APIOfficial service pageScore100Jun 26, 2026Matched speech-to-text, speech to text, stt; 2 source links; official service signal; access model: Paid APIdevelopers.openai.com
02AssemblyAI Speech-to-TextAssemblyAI API serviceservicePaid APIOfficial service pageScore100Jun 26, 2026Matched speech-to-text, speech to text, stt; 2 source links; official service signal; access model: Paid APIassemblyai.com
03Google Cloud Speech-to-TextGoogle Cloud API serviceservicePaid APIOfficial service pageScore100Jun 26, 2026Matched speech-to-text, speech to text, stt; 2 source links; official service signal; access model: Paid APIcloud.google.com
04Amazon TranscribeAWS API serviceservicePaid APIOfficial service pageScore100Jun 26, 2026Matched speech-to-text, speech to text, stt; 1 source link; official service signal; access model: Paid APIaws.amazon.com
05Azure AI SpeechMicrosoft Azure API serviceservicePaid APIOfficial service pageScore98Jun 26, 2026Matched speech-to-text, speech to text, asr; 3 source links; official service signal; access model: Paid APIlearn.microsoft.com
06ElevenLabs Speech to TextElevenLabs API serviceservicePaid APIOfficial service pageScore96Jun 26, 2026Matched speech-to-text, speech to text, stt; 1 source link; official service signal; access model: Paid APIelevenlabs.io
07Speechmatics Speech APISpeechmatics API serviceservicePaid APIOfficial service pageScore91Jun 26, 2026Matched speech-to-text, speech to text, transcription; 2 source links; official service signal; access model: Paid APIspeechmatics.com
08Deepgram Speech AIDeepgram API serviceservicePaid APIOfficial service pageScore83Jun 26, 2026Matched speech-to-text, speech to text, asr; 2 source links; official service signal; access model: Paid APIdeepgram.com
09Cartesia Voice APICartesia API serviceservicePaid APIOfficial service pageScore83Jun 26, 2026Matched speech-to-text, speech to text, stt; 2 source links; official service signal; access model: Paid APIdocs.cartesia.ai
10NVIDIA RivaNVIDIA API serviceservicePaid APIOfficial service pageScore81Jun 26, 2026Matched speech-to-text, speech to text, asr; 2 source links; official service signal; access model: Paid APIdeveloper.nvidia.com
11Hugging Face Inference ProvidersHugging Face model hubservicePaid APIOfficial inference catalogScore72Jun 26, 2026Matched speech-to-text, speech to text; 2 source links; official inference catalog signal; access model: Paid APIhuggingface.co
12Fish Audio: Transcribe 1 Profish-audio modelmodelPaid APIOpenRouter ModelsScore63Sep 24, 2026Matched transcription, transcribe, audio transcription; 2 source links; access model: Paid API; API availability sourcedopenrouter.ai
13Google: Gemini 3.5 Transcribegoogle modelmodelPaid APIOpenRouter ModelsScore63Sep 25, 2026Matched transcription, transcribe, audio transcription; 2 source links; access model: Paid API; API availability sourcedopenrouter.ai

Related automated lists

All best-of pages
Text-to-speechGenerate speech, product voices, narration, voice agents, and multilingual audio.Speech-to-speechBuild voice-to-voice agents, live translation, dubbing, and speech-native AI workflows.Voice agentsBuild conversational voice agents with low-latency speech, tool calls, and production APIs.

Decision pages

Methodology
Real-time speech-to-text for real-time transcriptionUse-case listTurkish speech-to-text for Turkish audioUse-case listAssemblyAI Speech-to-Text vs Azure AI SpeechLive comparisonGoogle Cloud Speech-to-Text vs Azure AI SpeechLive comparisonOpenAI Audio Speech-to-Text vs Azure AI SpeechLive comparisonAssemblyAI Speech-to-Text vs Google Cloud Speech-to-TextLive comparisonBest AssemblyAI Speech-to-Text alternativesAlternativesBest Amazon Transcribe alternativesAlternatives
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