Notes from the lab

Rime was founded by linguists. We spent years studying how people actually talk before we trained models on it, so our prompting guide teaches something different: how to transcribe speech the way it’s spoken. Below is the short version of that guide and gives some context behind why we do it this way.

Anything can sound great in a demo, but what do your callers actually prefer? Test multiple voices and vendors in your own experiment with this guide. Get benchmarks to measure against and prompts that you can execute in Claude and Cursor today.

We raised $24M to build the next chapter of voice AI.

Researchers at Miravoice placed roughly 100,000 calls to test 12 AI voices from three providers, then presented the results at AAPOR 2026. Here is what they found.

When it comes to delivering AI models, first impressions matter!

Coda is the latest model by Rime. Designed to be fast and expressive, Coda is built for enterprise conversations at scale.

Rime's fastest TTS model is now live. Mist v3 can handle enterprise scale without sacrificing speed.

Rime is a voice AI platform built for production: low latency, expressive speech, and 94+ voices that sound like people, not robots. Today, we're making it even faster to get started and stay in flow while you build.

Together AI's new end-to-end voice pipeline is helping to solve the real-time latency problem for agent builders.

Not all voice AI models are built for the same thing. Here’s how to tell the difference before it costs you.

Deepgram and Rime both target enterprise voice AI, but their TTS approaches are fundamentally different. Here's how they compare on voice quality, latency, and compliance.

Everything enterprises need to evaluate low-latency TTS at scale: latency benchmarks, deployment models, scalability checklists, and pricing math.

A practical comparison of latency, expressiveness, compliance, and deployment flexibility for enterprise contact centers and voice AI teams.

What it actually takes to build a successful voice AI system in 2026

SLNG and Rime are partnering to deliver production-grade voice AI on demand across global markets. Deploy Rime's Arcana V3 model with low-latency, compliant infrastructure around the world.

When a Fortune 500 contact center replaced traditional “pro” IVR voices with a more relatable AI voice, sales rose 23%, abandonment dropped 75%, and costs fell by over 50%.

Find the right voice in minutes

Pages now load in the blink of an eye!

How voice AI is moving beyond automation to drive faster resolution, better CX, and real business impact

Rime's Advantage in Enterprise Voice AI

How we cut latency by 300ms for the voice demos on our website and web app (and how you can too!)

Rime case study: thymia

Rime’s new pricing plans are simpler, more flexible, and built to scale

Rime’s Speech Models Are Now Available on Together AI

Announcing Rime and Hathora's Partnership

How Goodcall Builds Enterprise AI Agents with Rime

We shipped a bunch of improvements to our web application

Scaling to 750k monthly calls with best-in-class performance

The easiest way to test and fastest way to voice prompts

Rime's best-in-class TTS models are now available On-Prem

The first native QA of a Speech Engine

Announcing our partnership with Regal AI

Deploy Rime TTS on Cerebrium for fast, scalable, serverless voice applications

Mirage Security simulates social engineering attacks with Rime

Our conversation with Cerebral Valley

Rime Teams lets you manage usage, roles, and billing in one unified workspace.

Rime is partnering with Wittify AI to build natural, regional Arabic voices for real-world AI

The first voice-only playground for building AI voices!

Rime is bringing the full richness and authenticity of human speech to voice AI. Realism converts.

Building Better Voice AI Together

As of May 2025, Rime has completed its SOC 2 Type 2 audit.

Rime's new French and German voices enable you to create more authentic, multilingual experiences with our ultra-realistic voice options.​

Rimecaster is a new open source training model to make voice AI sound more human

Does your text-to-speech model pronounce your words correctly? With Rime, you can be sure.

Absof*ckinglutely!

Ever spelled out a name, phone number, or alphanumeric code when speaking?

Rime's TTS model, Mist, is now available via the LiveKit API.

Most voice AI models today sound good—but what makes one voice better than another? And how do you actually measure that?

Rime’s AI voices capture true-to-life accents, like Boston English, using linguistic expertise to ensure accuracy in speech patterns and pronunciation.

Rime Labs is now HIPAA compliant, ensuring secure, real-time Text-to-Speech for healthcare. Protect PHI with our trusted, compliant AI voice solutions.

Rime launches Mist, a next-gen conversational voice model with ultra-low latency and lifelike speech. Build real-time voice interactions with ease!

Rime's new tech swaps accents while preserving speaker identity, enabling lifelike voice transformations for AI, call automation, and more.

Rime delivers best-in-class TTS latency with ~175ms TTFB, far outpacing competitors. Get ultra-fast, natural speech for real-time AI interactions!

Rime’s TTS captures natural speech with realistic filler words, making AI conversations more human-like. Improve engagement with lifelike, nuanced voices!

Rime’s TTS ensures accurate, glitch-free speech with no AI hallucinations. Get reliable, natural-sounding voices for seamless text-to-speech experiences!

Rime’s TTS captures authentic Southern US English, from syntax to pronunciation, ensuring natural, lifelike AI speech for true conversational accuracy.

Rime’s Mist for IVR delivers emotionally aware, natural-sounding TTS with fast, flexible responses for seamless phone interactions. Upgrade your IVR today!

Rime is shaping the future of AI voice with autogenerated, non-clone voices tailored to every use case—moving beyond celebrity clones to true voice diversity.

Rime’s TTS adds natural back-channeling like “mmhm” and “uh-huh” for lifelike AI conversations, ensuring responsive and engaging voice interactions.

ConverseNow partners with Rime to power ultra-natural, fast, and adaptive voice AI for restaurant ordering, ensuring seamless, real-time customer interactions.

Rime’s TTS perfects list intonation, ensuring natural rising and falling pitch for seamless, human-like speech in business and everyday conversations.

Rime offers $5K in API credits to YC startups, enabling seamless text-to-speech integration with fast, natural voices. Apply now and start building!

Rime optimizes TTS speed with low latency and high-quality voice, ensuring seamless, real-time AI speech for any application.

Rime’s WebSocket API enables real-time, low-latency speech synthesis for seamless, interactive voice AI experiences. Integrate now for faster, more natural TTS!

Rime’s TTS models natural laughter in speech, allowing precise control for lifelike, engaging AI conversations. Experience true-to-life voice AI today!

Rime’s next-gen voice AI is now available on-prem, delivering ultra-fast, secure, and lifelike speech with total data control. Try it today!

Rime’s TTS ensures perfect pronunciation for names, brands, and unique words with custom phonetics. No more mispronunciations—try it today!

Rime’s new pricing tiers offer flexible, affordable AI voice solutions for developers and startups. Explore our plans and start building today!

Rime’s latest TTS update adds natural number sequences, custom pauses, and phoneme control for more tailored, lifelike speech. Try it now!