AI · alternatives · 2026
24 alternatives to Hathora Models – Voice Model Marketplace
Hey HN, this is Harsh from Hathora. We started as a game server hosting company and are launching a new offering today centered around voice models, leveraging our existing platform that runs game servers. We hope to achieve a few things with this product: 1. Democratized access to a wide variety of open source and licensed voice models 2. Ability to mix and match speech to text, reasoning (llm), and text to speech models to form inference chains for agentic voice workflows 3. Focus on latency reduction via (a) running models in 14+ regions around the globe, and (b) colocating models in the…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
- 2
Hey there, I’m Brian. I've been shipping conversational models over here at Tavus for the past two years. I want to tell you about our new audio-understanding model: Sparrow-2! It’s a new category of model and a unique new approach to conversational audio. Earlier this year we launched Sparrow-1, (at the time) our SoTA turn taking model. Since our Sparrow-1 launch, I’ve spent a lot of time listening to humans talking and trying to really understand how people know when to talk, when to listen, and when to wait. I’ve also been hunting down failure modes of the current SoTA models. And while…
2024 · tavus.io · its alternatives →
- 3
AI voice library for content creators
2023 · marketplace.respeecher.com · its alternatives →
- 4
- 5
The open-source framework for real-time AI voice
2025 · videosdk.live · its alternatives →
- 6
First TTS model to support all 22 Indic languages + English
2024 · its alternatives →
- 7MA
I've been deeply involved in working with AI agents and large language models (LLMs) for a while now. During a recent job search, I found myself repeatedly explaining my skills and experiences to various assistants. Around the same time, I was creating content for my website to help hiring teams understand my capabilities better and make informed decisions. MCP had started to gain momentum and I saw a way to reduce my toil. So I built an MCP server that can effectively communicate my qualifications as a job candidate. This server acts as an AI-powered resume, providing an understanding of my…
2025 · ai.jakegaylor.com · its alternatives →
- 8
- 9
I've been obsessed for the past ~year with the possibilities of talking to LLMs. I built a bunch of one-off prototypes, shared code on X, started a Meetup group in SF, and co-hosted a big hackathon. It turns out that there are a few low-level problems that everybody building conversational/real-time AI needs to solve on the way to building/shipping something that works well: low-latency media transport, echo cancellation, voice activity detection, phrase endpointing, pipelining data between models/services, handling voice interruptions, swapping out different…
2024 · github.com · its alternatives →
- 10
Inworld TTSfree tier, from $25/mo▲318Hey HN, this is Igor, one of the engineers behind Inworld Runtime, which we're releasing today in public preview. We built it to solve the common problem we and our customers had: engineers spend more time on AI ops and plumbing than on actual feature development. This was often due to the challenge of using Python for I/O-bound, high-concurrency workloads and complexity maintaining pipelines with streams that use always-changing ML models. Our solution is a high-performance runtime written in C++ with the core idea of defining AI logic as graphs. For instance, a basic voice-to-voice…
2025 · inworld.ai · its alternatives →
- 11
Vogent Voicelab▲171Hi HN! Voicelab is an API for optimized inference of top open-source TTS models. CSM-1B and Orpheus are the currently supported models, but we’re adding Dia, Chatterbox, Kokoro, and more in the next couple of weeks. While new ultra-realistic open-source voice models come out every month, most people still use one of a couple of closed-source providers. The reason is that these research previews can lack production-readiness; their inference stacks are usually not amenable to running things scalably (i.e. only one concurrent stream per GPU), and the public weights can generate speech of…
2025 · vogent.ai · its alternatives →
- 12HM
Hi HN, this is Harsh, I am the developer behind Hathora. I tried making a simple multiplayer game a few years ago and, as someone with software engineering experience but no gamedev experience, I found it to be very challenging. On top of the challenges of building a single player game, you now have to constantly battle the network and latency, find ways to prevent cheating, and figure out how to make a scalable backend architecture. With Hathora my goal was to encode best practices for online multiplayer game development into a framework so developers can simply focus on implementing their…
2022 · docs.hathora.dev · its alternatives →
- 13
Voila▲141Open-source AI for real-time, expressive voice role-play
2025 · voila.maitrix.org · its alternatives →
- 14
The Emotion Engine has 32 MB of RAM total, so the trick is streaming weights from CD-ROM one matrix at a time during the forward pass — only activations, KV cache and embeddings live in RAM. This means models bigger than the RAM can still run, they just read more from disc. Had to build a custom quantized format (PSNT), hack endianness, write a tokenizer pipeline, and most of the PS2 SDK from scratch (releasing that separately). The model itself is also custom — a 10M param Llama-style architecture I trained specifically for this. And it works. On real hardware.
Mar 2026 · github.com · its alternatives →
- 15
RunInfra▲156Describe the AI model you need and get an optimized AI
Jul 2026 · runinfra.ai · its alternatives →
- 16
Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…
2024 · github.com · its alternatives →
- 17
Our goal with this project is to build a completely open source, state of the art turn detection model that can be used in any voice AI application. I've been experimenting with LLM voice conversations since GPT-4 was first released. (There's a previous front page Show HN about Pipecat, the open source voice AI orchestration framework I work on. [1]) It's been almost two years, and for most of that time, I've been expecting that someone would "solve" turn detection. We all built initial, pretty good 80/20 versions of turn detection on top of VAD (voice activity detection) models. And…
2025 · github.com · its alternatives →
- 18MO
Warning: this whole post is a blatant plug for my Open Source project https://github.com/etiennesillon/ModelRunner There is lot of discussion around no code platforms and why developers don’t like them. My view is that they can be very useful to quickly get through the boring parts of a project, like creating master data management screens for example. So I’ve built my own version which interprets models at run time and, it turns out, understands natural language queries too! Hi, my name is Etienne, I love coding and I’ve been doing it for a few decades now so I’d rather…
2022 · modelrunner.org · its alternatives →
- 19
Hey everyone on HN! We recently spent the past couple of weeks building out an end-to-end platform which can plug-in multiple models (both open/closed-source) to create voice driven conversational applications. We've tried to make the process simple & concise through documentation. Feel free to try it out and provide feedback. We will be launching a dashboard in the coming week for monitoring and analytics alongwith more open source models. Let us know what you all think. (if you want to contribute, we have tons of features planned - do let us know)
2023 · github.com · its alternatives →
- 20
I cofounded Hathora (https://hathora.dev/) last year and we've been working on making it easier for smaller teams and individual developers to build scalable multiplayer games. We think the serverless model is the simplest approach, allowing you to dynamically provision a new instance of your game server when users or your matchmaker requests a new session. We made this .io style demo to showcase this approach, and we're releasing the source code and documentation alongside with it.
2023 · bullet-mania.netlify.app · its alternatives →
- 21
hey! this is oliver and jonathan and today, we’re launching fixa — a free, open source package to test voice agents. fixa uses a voice agent to call your voice agent and an LLM to evaluate how the conversation went. here's a demo: https://youtu.be/LAW1wW6SjTo this was initially a paid feature of our platform, but the monetization model didn't really make sense. our customers were paying us for all the components of our agent (STT + LLM + TTS + markup) in addition to their own agent – even though many of them have preferred vendors, volume discounts, and credits. we came to the…
2025 · github.com · its alternatives →
- 22HN
Hi HN, We’re Joel, Louis-Nicolas and Hilario, the founders of Humiris (humiris.ai). Humiris is a next-generation AI infrastructure that lets you build your own model by mixing and optimizing multiple foundation models to achieve high performance, unmatched accuracy , speed, and cost-efficiency. Our platform combines advanced routing, custom reasoning models, and mix tuning to help businesses leverage AI at scale without sacrificing quality or control. Here’s how it works: • Routing Intelligence: Humiris uses a large-scale routing model to automatically select the best LLM based on your…
2024 · its alternatives →
- 23
Hey everyone! Many of you might have come across the Mamba paper a few days ago, which introduced an LLM based on a state space model architecture. The Mamba architecture is quite useful as its complexity scales subquadratically with input length and is therefore way more efficient than transformer models: https://github.com/state-spaces/mamba I got really excited about the paper, so I decided to fine-tune the model on a chat dataset. It turns that this actually worked quite well! The model is quite suitable for casual chatting, which honestly surprised me given that it…
2023 · github.com · its alternatives →
- 24
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →