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Automated best-of radar

Best Speech-to-text radar.

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
22
matched automatically
Top fit
100
OpenAI Audio Speech-to-Text
Sources
34
canonical links retained
Access
All
all access paths
Updated
Aug 8, 2026
listed in sitemap
All22Free/open12Paid API12Open source6

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.

RDR100serviceOpenAI
Best API or hosted option

OpenAI Audio Speech-to-Text

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

RDR100serviceOpenAI
Best open-source option

Jargo: A WebRTC-Native, Audio-First Conversational AI Framework for Go

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

RDR82articleSource: gojargo/jargo GitHub repository.
Best developer momentum

screenpipe/screenpipe

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

RDR72reposcreenpipe
Best research signal

Introducing Real World VoiceEQ: A New Benchmark for Voice AI Quality

Strong paper or research-linked candidate when a source-backed research signal exists.

RDR66articleSource: Hugging Face blog post "Introducing Real World VoiceEQ: Measuring the human quality of voice AI"
#CandidateTypeAccessSourceFitUpdatedWhy it matchedEvidence
01OpenAI Audio Speech-to-TextOpenAI API serviceservicePaid APIOfficial service pageRDR100Jun 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 pageRDR100Jun 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 pageRDR100Jun 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 pageRDR100Jun 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 pageRDR99Jun 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 pageRDR97Jun 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 pageRDR92Jun 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 pageRDR84Jun 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 pageRDR83Jun 26, 2026Matched speech-to-text, speech to text, stt; 2 source links; official service signal; access model: Paid APIdocs.cartesia.ai
10Jargo: A WebRTC-Native, Audio-First Conversational AI Framework for GoAI CodingarticlePricing not verifiedAI on Radar articleRDR82Jul 17, 2026Matched speech-to-text, speech to text, stt; 1 source link; access model: Pricing not verifiedgithub.com
11NVIDIA RivaNVIDIA API serviceservicePaid APIOfficial service pageRDR82Jun 26, 2026Matched speech-to-text, speech to text, asr; 2 source links; official service signal; access model: Paid APIdeveloper.nvidia.com
12Fine-Tuning NVIDIA Nemotron 3.5 ASR for Custom ApplicationsAI ToolsarticlePricing not verifiedAI on Radar articleRDR79Jun 4, 2026Matched speech-to-text, speech to text, asr; 1 source link; access model: Pricing not verifiedhuggingface.co
13NVIDIA NIM Model CatalogNVIDIA inference platformserviceFree endpointOfficial inference catalogRDR76Jun 26, 2026Matched speech-to-text, speech to text; 3 source links; official inference catalog signal; access model: Free endpointbuild.nvidia.com
14Hugging Face Inference ProvidersHugging Face model hubservicePaid APIOfficial inference catalogRDR73Jun 26, 2026Matched speech-to-text, speech to text; 2 source links; official inference catalog signal; access model: Paid APIhuggingface.co
15screenpipe/screenpipeRust repositoryrepoOpen sourceGitHubRDR72Aug 8, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; freshly updatedgithub.com
16Juspay's Neurolink: A TypeScript Interface for 24+ LLM ProvidersDeveloper ToolsarticlePricing not verifiedAI on Radar articleRDR72Aug 4, 2026Matched speech-to-text, speech to text, stt; 1 source link; access model: Pricing not verified; freshly updatedgithub.com
17gojargo/jargoGo repositoryrepoOpen sourceGitHubRDR68Jul 20, 2026Matched speech-to-text, speech to text, stt; 1 source link; access model: Open source; open weights signalgithub.com
18Hugging Face and Cerebras Collaborate on Gemma 4 for Real-Time Voice AIAI ToolsarticlePricing not verifiedAI on Radar articleRDR67Jul 1, 2026Matched transcription, speech recognition, audio input; 1 source link; access model: Pricing not verifiedhuggingface.co
19Introducing Real World VoiceEQ: A New Benchmark for Voice AI QualityBenchmarksarticlePricing not verifiedAI on Radar articleRDR66Jul 15, 2026Matched speech-to-text, speech to text, stt; 1 source link; access model: Pricing not verifiedhuggingface.co
20OpenAI: GPT Transcribeopenai modelmodelPaid APIOpenRouter ModelsRDR65Aug 5, 2026Matched transcription, transcribe, audio transcription; 2 source links; access model: Paid API; freshly updatedopenrouter.ai
21Osmantic/ODSPython repositoryrepoOpen sourceGitHubRDR65Jul 28, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; open weights signalgithub.com
22AuraVixStudio/caeloPython repositoryrepoOpen sourceGitHubRDR58Jul 8, 2026Matched speech-to-text, speech to text; 1 source link; access model: Open source; open weights signalgithub.com

Related automated lists

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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 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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