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Automated best-of radar

Best Free Speech-to-text options.

Candidates with a source-backed free tier, free endpoint, free trial, pretrained download, open weights, open-source license, or self-hosted 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
AssemblyAI Speech-to-Text
Sources
21
canonical links retained
Access
Free/open
filtered automatically
Updated
Oct 3, 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

AssemblyAI Speech-to-Text

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

Score100serviceAssemblyAI
Best API or hosted option

AssemblyAI Speech-to-Text

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

Score100serviceAssemblyAI
Best open-source option

NVIDIA Riva

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

Score81serviceNVIDIA
Best developer momentum

screenpipe/screenpipe

Strong candidate with fresh GitHub, Hub, Product Hunt, or radar momentum.

Score68reposcreenpipe
#CandidateTypeAccessSourceFitUpdatedWhy it matchedEvidence
01AssemblyAI 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
02Amazon 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
03Azure 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
04ElevenLabs 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
05Deepgram 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
06Cartesia 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
07NVIDIA 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
08NVIDIA NIM Model CatalogNVIDIA inference platformserviceFree endpointOfficial inference catalogScore75Jun 26, 2026Matched speech-to-text, speech to text; 3 source links; official inference catalog signal; access model: Free endpointbuild.nvidia.com
09screenpipe/screenpipeRust repositoryrepoOpen sourceGitHubScore68Oct 3, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; freshly updatedgithub.com
10gojargo/jargoGo repositoryrepoOpen sourceGitHubScore67Jul 20, 2026Matched speech-to-text, speech to text, stt; 1 source link; access model: Open source; open weights signalgithub.com
11Osmantic/ODSPython repositoryrepoOpen sourceGitHubScore63Jul 28, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; open weights signalgithub.com
12ragibhasan/bangla_speech_corpus_v1ragibhasan modelmodelOpen weightsHugging Face ModelsScore62Sep 30, 2026Matched automatic speech recognition, speech recognition; 2 source links; access model: Open weights; freshly updatedhuggingface.co
13AuraVixStudio/caeloPython repositoryrepoOpen sourceGitHubScore58Jul 8, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; open weights signalgithub.com

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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 comparisonAmazon Transcribe vs Azure AI SpeechLive comparisonAssemblyAI Speech-to-Text vs Amazon TranscribeLive comparisonAzure AI Speech vs ElevenLabs Speech to TextLive comparisonBest AssemblyAI Speech-to-Text alternativesAlternativesBest Amazon Transcribe alternativesAlternatives
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