Alternatives

Products that do what StreamKit does

Build and run Live video, speech-to-text, voice agent,

1
LiveKit Cloud▲250
Build massive-scale, real-time video and audio experiences
2022
2
LiveKit▲236
The open source platform for real-time communication
2021
3IB
I built a sub-500ms latency voice agent from scratch▲570
I built a voice agent from scratch that averages ~400ms end-to-end latency (phone stop → first syllable). That’s with full STT → LLM → TTS in the loop, clean barge-ins, and no precomputed responses. What moved the needle: Voice is a turn-taking problem, not a transcription problem. VAD alone fails; you need semantic end-of-turn detection. The system reduces to one loop: speaking vs listening. The two transitions - cancel instantly on barge-in, respond instantly on end-of-turn - define the experience. STT → LLM → TTS must stream. Sequential pipelines are dead on arrival for natural…
Mar 2026 · ntik.me
4
OpenAI GPT-4o Audio Models▲390
Build Powerful Voice Agents
2025
5VP
Voice-Pro – AI Voice Cloning▲271
Imagine creating a podcast where Mark Zuckerberg interviews Elon Musk – using their actual voices? What sounds like science fiction is now reality. Voice-Pro is an open-source Gradio WebUI that breaks the boundaries of audio manipulation. Powered by cutting-edge Whisper engines, this tool turns voice replication into child's play. Key Features: - Zero-shot Voice Cloning - Voice Changer with 50+ Celebrity Voices - YouTube Audio Downloading - Vocal Isolation - Multi-Language Text-to-Speech (Edge-TTS, F5-TTS) - Multi-Language Translation - Powered by Whisper Engines (Whisper, Faster-Whisper,…
2024 · github.com
6
Descript Pro▲392
Next gen audio/video editor with personalized voice cloning
2020
7
KugelAudio▲106
Real-time text-to-speech model you can self-host
May 2026 · kugelaudio.com
8OS
Open source framework OpenAI uses for Advanced Voice▲266
Hey HN, we've been working with OpenAI for the past few months on the new Realtime API. The goal is to give everyone access to the same stack that underpins Advanced Voice in the ChatGPT app. Under the hood it works like this: - A user's speech is captured by a LiveKit client SDK in the ChatGPT app - Their speech is streamed using WebRTC to OpenAI’s voice agent - The agent relays the speech prompt over websocket to GPT-4o - GPT-4o runs inference and streams speech packets (over websocket) back to the agent - The agent relays generated speech using WebRTC back to the user’s device The…
2024 · github.com
9LV
Local voice assistant using Ollama, transformers and Coqui TTS toolkit▲167
2024 · github.com
10
Realtime TTS-2▲153
Voice AI that feels as good as it sounds
May 2026 · inworld.ai
11
SpeechifyAI Simba Voice Agents▲161
Voice agents powered by Simba 3.2 the world's #1 voice model
Jul 2026 · speechify.ai
12
AssemblyAI: Universal-3 Pro Streaming▲118
The most accurate streaming speech model for voice agents.
Mar 2026
13
ElevenLabs SFX v2 ▲179
Generate endless looping sound effects with a single prompt
2025
14IM
I made a free transcription service powered by Whisper AI▲224
2022 · freesubtitles.ai
15
VoiceCheap▲213
Dub & translate any video in any language
2024
16
SpeechText.AI for Chrome▲130
Record, capture and transcribe audio & video in minutes
2021
17
TurboScribe▲105
Convert audio and video to accurate text in seconds with AI
2024
18
Voice Agent API▲118
One API to build production-ready voice agents
Apr 2026 · assemblyai.com
19
Aloud▲118
Turn spoken feedback into tasks your coding agent can run
17d ago · aloud.sh
20
Grok Voice API▲119
Fast, accurate STT and TTS APIs at the best price
Apr 2026 · x.ai
21
Speechius▲127
The teleprompter that actually listens
Jul 2026 · speechius.com
22
Simon Says▲111
Accurate transcription and translation for video pros
2018
23
One Click Deploy▲96
Deploy your LiveKit Voice AI agents instantly
2025
24
Fish Speech 1.4▲52
Open-Source Multilingual Text-to-Speech with Voice Cloning
2024

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