# Top 10 Kaldi ASR Alternatives & Competitors **Average Rating:** 4.1/5 **Total Number of Reviews:** 21 Looking for alternatives or competitors to Kaldi ASR? Other important factors to consider when researching alternatives to Kaldi ASR include training and features. The best overall Kaldi ASR alternative is OpenAI Whisper. Other similar apps like Kaldi ASR are Deepgram, Otter.ai, Krisp, and Rev. Kaldi ASR alternatives can be found in [Voice Recognition Software](https://www.g2.com/categories/voice-recognition) but may also be in [AI Meeting Assistants Software](https://www.g2.com/categories/ai-meeting-assistants) or [AI Legal Assistant Software](https://www.g2.com/categories/ai-legal-assistant). ## Best Paid & Free Alternatives to Kaldi ASR - [OpenAI Whisper](https://www.g2.com/products/openai-whisper/reviews) - [Deepgram](https://www.g2.com/products/deepgram/reviews) - [Otter.ai](https://www.g2.com/products/otter-ai/reviews) - [Krisp](https://www.g2.com/products/krisp/reviews) - [Rev](https://www.g2.com/products/rev/reviews) - [Google Cloud Speech-to-Text](https://www.g2.com/products/google-cloud-speech-to-text/reviews) - [HTK (Hidden Markov Model Toolkit)](https://www.g2.com/products/htk-hidden-markov-model-toolkit/reviews) - [Notta](https://www.g2.com/products/notta/reviews) - [GlobalLink](https://www.g2.com/products/globallink/reviews) - [AssemblyAI - Speech to Text API](https://www.g2.com/products/assemblyai-speech-to-text-api/reviews) ## Top 10 Alternatives to Kaldi ASR Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how Kaldi ASR stacks up to the competition, check reviews from current & previous users in industries like Computer Software, Hospital & Health Care, and Research, and find the best product for your business. ### 1. [OpenAI Whisper](https://www.g2.com/products/openai-whisper/reviews) By OpenAI **Average Rating:** 4.6/5 **Total Reviews:** 21 Whisper is a general-purpose speech recognition model. It is trained on a large dataset of diverse audio and is also a multitasking model that can perform multilingual speech recognition, speech translation, and language identification. Reviewers say compared to Kaldi ASR, OpenAI Whisper is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs OpenAI Whisper](https://www.g2.com/compare/kaldi-asr-vs-openai-whisper) **Compare OpenAI Whisper with other alternatives:** - [OpenAI Whisper vs Deepgram](https://www.g2.com/compare/deepgram-vs-openai-whisper) - [OpenAI Whisper vs Otter.ai](https://www.g2.com/compare/openai-whisper-vs-otter-ai) - [OpenAI Whisper vs Krisp](https://www.g2.com/compare/krisp-vs-openai-whisper) - [OpenAI Whisper vs Rev](https://www.g2.com/compare/openai-whisper-vs-rev) - [OpenAI Whisper vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-openai-whisper) - [OpenAI Whisper vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-openai-whisper) - [OpenAI Whisper vs Notta](https://www.g2.com/compare/notta-vs-openai-whisper) - [OpenAI Whisper vs GlobalLink](https://www.g2.com/compare/globallink-vs-openai-whisper) - [OpenAI Whisper vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-openai-whisper) ### 2. [Deepgram](https://www.g2.com/products/deepgram/reviews) By Deepgram **Average Rating:** 4.6/5 **Total Reviews:** 446 Deepgram builds artificial intelligence to recognize speech, search for moments, and categorize audio and video. Reviewers say compared to Kaldi ASR, Deepgram is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Deepgram](https://www.g2.com/compare/deepgram-vs-kaldi-asr) **Compare Deepgram with other alternatives:** - [Deepgram vs OpenAI Whisper](https://www.g2.com/compare/deepgram-vs-openai-whisper) - [Deepgram vs Otter.ai](https://www.g2.com/compare/deepgram-vs-otter-ai) - [Deepgram vs Krisp](https://www.g2.com/compare/deepgram-vs-krisp) - [Deepgram vs Rev](https://www.g2.com/compare/deepgram-vs-rev) - [Deepgram vs Google Cloud Speech-to-Text](https://www.g2.com/compare/deepgram-vs-google-cloud-speech-to-text) - [Deepgram vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/deepgram-vs-htk-hidden-markov-model-toolkit) - [Deepgram vs Notta](https://www.g2.com/compare/deepgram-vs-notta) - [Deepgram vs GlobalLink](https://www.g2.com/compare/deepgram-vs-globallink) - [Deepgram vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-deepgram) ### 3. [Otter.ai](https://www.g2.com/products/otter-ai/reviews) By Otter.ai **Average Rating:** 4.4/5 **Total Reviews:** 496 Otter.ai creates technologies and products that make information from important voice conversations instantly accessible and actionable. Reviewers say compared to Kaldi ASR, Otter.ai is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Otter.ai](https://www.g2.com/compare/kaldi-asr-vs-otter-ai) **Compare Otter.ai with other alternatives:** - [Otter.ai vs OpenAI Whisper](https://www.g2.com/compare/openai-whisper-vs-otter-ai) - [Otter.ai vs Deepgram](https://www.g2.com/compare/deepgram-vs-otter-ai) - [Otter.ai vs Krisp](https://www.g2.com/compare/krisp-vs-otter-ai) - [Otter.ai vs Rev](https://www.g2.com/compare/otter-ai-vs-rev) - [Otter.ai vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-otter-ai) - [Otter.ai vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-otter-ai) - [Otter.ai vs Notta](https://www.g2.com/compare/notta-vs-otter-ai) - [Otter.ai vs GlobalLink](https://www.g2.com/compare/globallink-vs-otter-ai) - [Otter.ai vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-otter-ai) ### 4. [Krisp](https://www.g2.com/products/krisp/reviews) By Krisp Technologies, Inc. **Average Rating:** 4.6/5 **Total Reviews:** 1,349 Krisp delivers real-time Voice AI technology that improves digital conversations across meetings, contact centers, and embedded applications. The platform combines noise and echo removal, background voice cancellation, accent conversion, live voice translation, transcription, meeting summarization, and agent assistance in one solution. Krisp technology is deployed on more than 200 million devices and processes over 75 billion minutes of voice conversations each month. Organizations use it to capture accurate meeting records, enhance customer interactions, and build new voice-enabled products. Contact centers and service providers report measurable impact, including reductions in noise-related complaints, faster call handling, and higher customer satisfaction. By operating on-device and in the cloud, and by supporting any microphone, headset, or communication app, Krisp provides a scalable, privacy-focused layer of real-time voice AI for businesses of every size. Reviewers say compared to Kaldi ASR, Krisp is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Krisp](https://www.g2.com/compare/kaldi-asr-vs-krisp) **Compare Krisp with other alternatives:** - [Krisp vs OpenAI Whisper](https://www.g2.com/compare/krisp-vs-openai-whisper) - [Krisp vs Deepgram](https://www.g2.com/compare/deepgram-vs-krisp) - [Krisp vs Otter.ai](https://www.g2.com/compare/krisp-vs-otter-ai) - [Krisp vs Rev](https://www.g2.com/compare/krisp-vs-rev) - [Krisp vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-krisp) - [Krisp vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-krisp) - [Krisp vs Notta](https://www.g2.com/compare/krisp-vs-notta) - [Krisp vs GlobalLink](https://www.g2.com/compare/globallink-vs-krisp) - [Krisp vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-krisp) ### 5. [Rev](https://www.g2.com/products/rev/reviews) By Rev.com **Average Rating:** 4.7/5 **Total Reviews:** 591 Digital evidence has surged — body cams, dash cams, smartphones, 911 calls, and interviews in every case — but legal and law enforcement teams haven’t grown with it, making thorough review nearly impossible. Rev helps teams keep pace. Our platform pairs industry-leading speech recognition with AI that cites its sources, delivering accurate, verifiable results tied to the original file. AI supports — never replaces — human judgment, with optional human review when precision matters most. Built with CJIS-, HIPAA-, and SOC 2-compliant security and zero data sharing with third-party LLMs, Rev reduces overtime, prevents missed details, and helps move cases forward with confidence. Reviewers say compared to Kaldi ASR, Rev is: - More usable - Better at support - More expensive Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Rev](https://www.g2.com/compare/kaldi-asr-vs-rev) **Compare Rev with other alternatives:** - [Rev vs OpenAI Whisper](https://www.g2.com/compare/openai-whisper-vs-rev) - [Rev vs Deepgram](https://www.g2.com/compare/deepgram-vs-rev) - [Rev vs Otter.ai](https://www.g2.com/compare/otter-ai-vs-rev) - [Rev vs Krisp](https://www.g2.com/compare/krisp-vs-rev) - [Rev vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-rev) - [Rev vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-rev) - [Rev vs Notta](https://www.g2.com/compare/notta-vs-rev) - [Rev vs GlobalLink](https://www.g2.com/compare/globallink-vs-rev) - [Rev vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-rev) ### 6. [Google Cloud Speech-to-Text](https://www.g2.com/products/google-cloud-speech-to-text/reviews) By Google **Average Rating:** 4.6/5 **Total Reviews:** 240 Google Cloud Speech-to-Text is a service that enables developers to quickly and accurately convert audio to text by applying neural network models in an easy to use API. The API covers 73 languages and 137 different local variants to support a global user base and can be used to power media voice control systems, content captioning and analysis, conversational platforms and more. Reviewers say compared to Kaldi ASR, Google Cloud Speech-to-Text is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-kaldi-asr) **Compare Google Cloud Speech-to-Text with other alternatives:** - [Google Cloud Speech-to-Text vs OpenAI Whisper](https://www.g2.com/compare/google-cloud-speech-to-text-vs-openai-whisper) - [Google Cloud Speech-to-Text vs Deepgram](https://www.g2.com/compare/deepgram-vs-google-cloud-speech-to-text) - [Google Cloud Speech-to-Text vs Otter.ai](https://www.g2.com/compare/google-cloud-speech-to-text-vs-otter-ai) - [Google Cloud Speech-to-Text vs Krisp](https://www.g2.com/compare/google-cloud-speech-to-text-vs-krisp) - [Google Cloud Speech-to-Text vs Rev](https://www.g2.com/compare/google-cloud-speech-to-text-vs-rev) - [Google Cloud Speech-to-Text vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/google-cloud-speech-to-text-vs-htk-hidden-markov-model-toolkit) - [Google Cloud Speech-to-Text vs Notta](https://www.g2.com/compare/google-cloud-speech-to-text-vs-notta) - [Google Cloud Speech-to-Text vs GlobalLink](https://www.g2.com/compare/globallink-vs-google-cloud-speech-to-text) - [Google Cloud Speech-to-Text vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-google-cloud-speech-to-text) ### 7. [HTK (Hidden Markov Model Toolkit)](https://www.g2.com/products/htk-hidden-markov-model-toolkit/reviews) By Cambridge University Engineering Department (CUED) **Average Rating:** 3.7/5 **Total Reviews:** 16 HTK (Hidden Markov Model Toolkit) is a comprehensive software suite designed for building and manipulating Hidden Markov Models (HMMs). Developed by the Cambridge University Engineering Department, HTK is primarily utilized in speech recognition research but has also been applied to areas such as speech synthesis, character recognition, and DNA sequencing. Key Features and Functionality: - HMM Training and Evaluation: HTK provides tools for training HMMs using labeled data and evaluating their performance, facilitating the development of accurate models for various applications. - Acoustic Model Training: The toolkit supports the creation of acoustic models essential for speech recognition systems, enabling the modeling of speech sounds and their variations. - Modular Design: HTK's modular architecture allows researchers to extend and customize its functionalities, making it adaptable to specific project requirements. - Comprehensive Documentation: Accompanied by a detailed manual, HTK offers extensive guidance on its usage, aiding both novice and experienced users in effectively utilizing the toolkit. Primary Value and User Solutions: HTK addresses the need for a robust and flexible platform in the field of speech recognition and related disciplines. By offering a suite of tools for HMM training and evaluation, it enables researchers and developers to construct and refine models tailored to their specific applications. Its adaptability and comprehensive documentation make it a valuable resource for advancing research and development in pattern recognition and machine learning domains. Reviewers say compared to Kaldi ASR, HTK (Hidden Markov Model Toolkit) is: - Better at support - More usable Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-kaldi-asr) **Compare HTK (Hidden Markov Model Toolkit) with other alternatives:** - [HTK (Hidden Markov Model Toolkit) vs OpenAI Whisper](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-openai-whisper) - [HTK (Hidden Markov Model Toolkit) vs Deepgram](https://www.g2.com/compare/deepgram-vs-htk-hidden-markov-model-toolkit) - [HTK (Hidden Markov Model Toolkit) vs Otter.ai](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-otter-ai) - [HTK (Hidden Markov Model Toolkit) vs Krisp](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-krisp) - [HTK (Hidden Markov Model Toolkit) vs Rev](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-rev) - [HTK (Hidden Markov Model Toolkit) vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-htk-hidden-markov-model-toolkit) - [HTK (Hidden Markov Model Toolkit) vs Notta](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-notta) - [HTK (Hidden Markov Model Toolkit) vs GlobalLink](https://www.g2.com/compare/globallink-vs-htk-hidden-markov-model-toolkit) - [HTK (Hidden Markov Model Toolkit) vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-htk-hidden-markov-model-toolkit) ### 8. [Notta](https://www.g2.com/products/notta/reviews) By Notta **Average Rating:** 4.4/5 **Total Reviews:** 234 Notta automatically converts meetings, interviews, and other audio/video into accurate text. Transcribe, edit, summarize, and collaborate in a single workflow to stay productive. Reviewers say compared to Kaldi ASR, Notta is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs Notta](https://www.g2.com/compare/kaldi-asr-vs-notta) **Compare Notta with other alternatives:** - [Notta vs OpenAI Whisper](https://www.g2.com/compare/notta-vs-openai-whisper) - [Notta vs Deepgram](https://www.g2.com/compare/deepgram-vs-notta) - [Notta vs Otter.ai](https://www.g2.com/compare/notta-vs-otter-ai) - [Notta vs Krisp](https://www.g2.com/compare/krisp-vs-notta) - [Notta vs Rev](https://www.g2.com/compare/notta-vs-rev) - [Notta vs Google Cloud Speech-to-Text](https://www.g2.com/compare/google-cloud-speech-to-text-vs-notta) - [Notta vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/htk-hidden-markov-model-toolkit-vs-notta) - [Notta vs GlobalLink](https://www.g2.com/compare/globallink-vs-notta) - [Notta vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-notta) ### 9. [GlobalLink](https://www.g2.com/products/globallink/reviews) By TransPerfect **Average Rating:** 4.5/5 **Total Reviews:** 186 GlobalLink enables organizations to streamline the localization process for all business needs. Reviewers say compared to Kaldi ASR, GlobalLink is: - More expensive - Better at support - More usable Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs GlobalLink](https://www.g2.com/compare/globallink-vs-kaldi-asr) **Compare GlobalLink with other alternatives:** - [GlobalLink vs OpenAI Whisper](https://www.g2.com/compare/globallink-vs-openai-whisper) - [GlobalLink vs Deepgram](https://www.g2.com/compare/deepgram-vs-globallink) - [GlobalLink vs Otter.ai](https://www.g2.com/compare/globallink-vs-otter-ai) - [GlobalLink vs Krisp](https://www.g2.com/compare/globallink-vs-krisp) - [GlobalLink vs Rev](https://www.g2.com/compare/globallink-vs-rev) - [GlobalLink vs Google Cloud Speech-to-Text](https://www.g2.com/compare/globallink-vs-google-cloud-speech-to-text) - [GlobalLink vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/globallink-vs-htk-hidden-markov-model-toolkit) - [GlobalLink vs Notta](https://www.g2.com/compare/globallink-vs-notta) - [GlobalLink vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-globallink) ### 10. [AssemblyAI - Speech to Text API](https://www.g2.com/products/assemblyai-speech-to-text-api/reviews) By AssemblyAI **Average Rating:** 4.6/5 **Total Reviews:** 123 We're a team of engineers and researchers, and we're working to give developers and global companies an alternative to big tech companies when it comes to advanced AI solutions. Reviewers say compared to Kaldi ASR, AssemblyAI - Speech to Text API is: - More expensive - More usable - Better at support Categories in common with Kaldi ASR: [Voice Recognition](https://www.g2.com/categories/voice-recognition) **Compare:** [Kaldi ASR vs AssemblyAI - Speech to Text API](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-kaldi-asr) **Compare AssemblyAI - Speech to Text API with other alternatives:** - [AssemblyAI - Speech to Text API vs OpenAI Whisper](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-openai-whisper) - [AssemblyAI - Speech to Text API vs Deepgram](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-deepgram) - [AssemblyAI - Speech to Text API vs Otter.ai](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-otter-ai) - [AssemblyAI - Speech to Text API vs Krisp](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-krisp) - [AssemblyAI - Speech to Text API vs Rev](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-rev) - [AssemblyAI - Speech to Text API vs Google Cloud Speech-to-Text](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-google-cloud-speech-to-text) - [AssemblyAI - Speech to Text API vs HTK (Hidden Markov Model Toolkit)](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-htk-hidden-markov-model-toolkit) - [AssemblyAI - Speech to Text API vs Notta](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-notta) - [AssemblyAI - Speech to Text API vs GlobalLink](https://www.g2.com/compare/assemblyai-speech-to-text-api-vs-globallink) ## Explore Articles - [Which solution supports secure transcription for confidential documents?](https://www.g2.com/discussions/which-solution-supports-secure-transcription-for-confidential-documents) - [Leading generative AI tools for enterprise applications](https://www.g2.com/discussions/what-are-the-leading-generative-ai-tools-for-enterprise-applications) - [Top tools for analyzing customer and employee feedback data](https://www.g2.com/discussions/what-are-the-top-tools-for-analyzing-customer-and-employee-feedback-data) - [Best ASM software for reducing cybersecurity risks](https://www.g2.com/discussions/what-are-the-best-asm-tools-for-reducing-cybersecurity-risks) - [Best app for partner relationship management](https://www.g2.com/discussions/best-bot-platform-for-small-business) - [Top tools for managing employee records and payroll](https://www.g2.com/discussions/what-are-the-top-tools-for-managing-employee-records-and-payroll) ## Spotlight Categories - [Time Tracking Software](https://www.g2.com/categories/time-tracking-software) - [Event Management Platforms](https://www.g2.com/categories/event-management-platforms) - [VoIP Providers](https://www.g2.com/categories/voip)