ElevenLabs

Vaibhav Sisinty

@VaibhavSisinty

Did @SpaceXAI just kill every voice AI startup in one update? Grok Voice Think Fast 2.0. Their most capable speech-to-speech model. And the benchmarks are brutal. → 82.9% on the Speech-to-Speech Quality Index. GPT Realtime: 79.1%. Gemini Flash: 69.5%. → 97.2% on speech reasoning. Highest of any model tested. → 95.1% on conversational dynamics. Matches GPT. Destroys Gemini. → 56.5% on agentic voice tasks. GPT: 45.7%. Gemini: 37.7%. Not close. → Time to first audio: 0.70 seconds. Gemini takes 2.98 seconds. Transcription accuracy is where it gets wild. 1.5-2x better than Deepgram Nova 3 and ElevenLabs Scribe. In noisy environments the gap widens to 10x. It reasons while it speaks. Other models think, then talk. This one does both at the same time. No latency cost. They trained it to talk like a human. Shorter sentences. One question at a time. Already A/B tested on Starlink support sales conversion and support containment both went up. Pricing: $0.08 per minute of audio. ElevenLabs spent years building a voice AI company. xAI built voice AI for cars and satellites. Then made it available to everyone as an afterthought.

Alex Finn

@AlexFinn

Just to see what would happen I texted Henry my Clawdbot to make a reservation for me next Saturday at a restaurant When the OpenTable res didn't work, it used it's ElevenLabs skill to call the restaurant and complete the reservation AGI is here and 99% of people have no clue https://t.co/8iS5nJ7Cw2

Machina

@EXM7777

ElevenLabs founders must be SHAKING right now... for years they owned TTS because nothing open-source sounded human that’s over... Fish Audio just launched S2.1 Pro and they’re one of the few voice AI companies that also has open-weight models > clone any voice from a 15 second clip > type [whispers] or [laughing nervously] into the script and it obeys > switch languages mid conversation without switching models the model you used to rent a subscription for is now has a public download model tinker with the weights on your own gpu or use the api

X Freeze

@XFreeze

SpaceXAI just launched Grok Voice Think Fast 2.0 - its most capable speech-to-speech model yet The numbers are so impressive: • 82.9% overall Speech-to-Speech Quality Index • 97.2% on speech reasoning • 56.5% on agentic voice tasks • Just 0.70 seconds to first audio • Uses only 0.4× the reasoning tokens of Think Fast 1.0 Grok Voice Think Fast 2.0 now ranks ahead of GPT-Realtime-2.1 and Gemini 3.1 Flash on overall speech-to-speech benchmarks But the biggest improvement is real-world listening Across thousands of short phrases in 24 languages, it delivers 1.5–2× better transcription accuracy than Deepgram Nova 3 and ElevenLabs Scribe v2 In noisy environments and compressed phone calls, that advantage grows to around 10× It can also reason while speaking, allowing tool calls to begin before it even finishes its first sentence.....with no added latency Conversations now feel much more natural: • Shorter responses • One question at a time • Less filler • More fluid dialogue • Better guidance through complex tasks SpaceXAI has already deployed it on Starlink's phone line and saw significant increases in both sales conversion and customer support containment Grok Voice Think Fast 2.0 becomes the default grok-voice-latest model on August 5 Pricing: $0.08 per minute of audio Voice AI is rapidly evolving from scripted assistants into intelligent agents that can listen, reason, speak, and take action in real time

Linus ✦ Ekenstam

@LinusEkenstam

You're not ready for this 🚨 AI voices can now laugh, whisper and sigh on command Fish Audio just dropped S2.1 Pro, the most expressive voice AI I've heard. More emotional range than ElevenLabs and Cartesia 6x more affordable than ElevenLabs 💸 Here's the full breakdown 👇 For years, voice AI had one goal: sound human. That race is over. Everything sounds realistic now. The new benchmark is expressiveness. Emotion, nuance, timing. Can a voice *perform* a line, not just read it? That's what S2.1 Pro was built for. I ran the same emotional script through Fish Audio, ElevenLabs and Cartesia. Same words, completely different performances. The pauses, the intonation, the way Fish Audio's voice breathes between lines. It's not close. Watch the video below. The wild part is how you control it. You direct it like a voice actor, in plain text: [nervous laugh] → expressive laughing. [cry] → it cries [long sigh] → it expels a long sigh Plus word-level control over pronunciation, emphasis and pacing. Generating speech is out. Directing performances is in. And it's not just for voiceovers. S2.1 Pro streams at ~90ms to first audio. That's fast enough for live conversation, with rhythm that survives interruptions and topic changes. It's what makes voice agents finally feel human. The practical stuff: • Clone a voice from 15 seconds of audio • 80+ languages in one model • Open-source roots, open weights models, self-hostable • 1/6 of the cost of ElevenLabs HeyGen already integrated Fish Audio. More will follow. Try it: https://t.co/DugUDKVjfm (there's a free tier) Reply with a line you'd love to hear an AI voice truly perform, and I'll run the best ones through S2.1 Pro and post the results 👇

Charly Wargnier

@DataChaz

THE FOUNDERS OF @ELEVENLABS HAVE TO BE SWEATING RIGHT NOW For years, they absolutely dominated TTS because no open-source options could actually sound human. That era is officially over. @FishAudio just dropped their S2.1 Pro model, stepping up as one of the rare voice AI companies offering open-weight models. Devs now get now natural-language control over emotion, pacing, and delivery, alongside serious real-time performance: The specs speak for themselves: → 2x faster than Cartesia → 1/6th the cost of ElevenLabs → 56.3 chars/s throughput, ahead of GPT-Realtime-2 → Native support for 83+ languages → Around 90ms latency for natural conversations Need to keep everything in-house? S2.1 Pro also supports on-prem deployment with zero data retention. If you're building production-grade voice agents, this is THE most interesting open-source releases to test right now 👀

Mati Staniszewski

Co-founder & CEO

Polish former Palantir deployment strategist who co-founded ElevenLabs in 2022 and serves as CEO.

Piotr Dabkowski

Co-founder & CTO

Polish former Google machine-learning engineer who co-founded ElevenLabs and leads its research and technology.

Max Lynch

Co-founder, Head of Strategy & Brand Growth

Co-founder focused on strategy, brand growth, and overall company direction.

Nihal D. Chauhan

Public Sector Partnerships & Policy, APAC

Previously at GATI Foundation · Singapore, Singapore

Joined May 2026

Trevor Marsteller

Finance

Previously at Tilt · United States

Joined Jun 2026

Loic Reyreaud

Infrastructure Engineer

Previously at Cogna · France

Joined May 2026

Michal Filip Kowalik

GTM

Previously at Yext · London, England, United Kingdom

Joined May 2026

Eduard-Mihai Toth

RevOps

Previously at FlowX.AI · Bucharest, Romania

Joined May 2026

Juan Castellanos

GTM

Previously at Synthflow AI · Greater Tampa Bay Area

Joined May 2026