Meet Grok Voice 3.0: SpaceXAI Voice Agent Model Ranks #1 on Artificial Analysis

Back</button><button class="btn" id="gvNext">Next </button><button class="btn" id="gvPlay">Auto-play</button></div> </div> <div class="pnl" id="p2"> <div class="chips" id="gvChips"></div> <div id="gvBars"></div> <p class="note" id="gvNote"></p> </div> <div class="pnl" id="p3"> <svg viewBox="0 0 640 330" width="100%" role="img" aria-label="τ-Voice success rate versus time to first audio"> <rect x="0" y="0" width="640" height="330" fill="transparent"/> <g stroke="#2a2a2a"> <line x1="70" y1="30" x2="70" y2="280"/><line x1="70" y1="280" x2="610" y2="280"/> <line x1="70" y1="196.7" x2="610" y2="196.7" stroke-dasharray="3 4"/><line x1="70" y1="113.3" x2="610" y2="113.3" stroke-dasharray="3 4"/> <line x1="70" y1="30" x2="610" y2="30" stroke-dasharray="3 4"/> </g> <g fill="#9a9a9a" font-size="11"> <text x="62" y="284" text-anchor="end">50%</text><text x="62" y="201" text-anchor="end">60%</text><text x="62" y="117" text-anchor="end">70%</text><text x="62" y="34" text-anchor="end">80%</text> <text x="70" y="298" text-anchor="middle">0.5 s</text><text x="205" y="298" text-anchor="middle">0.75 s</text><text x="340" y="298" text-anchor="middle">1.0 s</text><text x="475" y="298" text-anchor="middle">1.25 s</text><text x="610" y="298" text-anchor="middle">1.5 s</text> <text x="340" y="320" text-anchor="middle">Time to first audio (lower is faster)</text> <text x="16" y="155" text-anchor="middle" transform="rotate(-90 16 155)">τ-Voice success</text> </g> <text x="84" y="50" fill="#ffffff" font-size="12" font-weight="700"> better</text> <g id="gvDots"></g> </svg> <p class="note">Source: Artificial Analysis, accessed October 14, 2026. Grok Voice 3.0 trails GPT-Live-1 (Astra, medium) by 2.9 points on τ-Voice but reaches first audio 0.53 s sooner.</p> </div> <div class="pnl" id="p4"> <div class="kv"> <div class="k"><b>$0.08/min</b><span>$4.80/hr, same as Grok Voice 2.0</span></div> <div class="k"><b>0.81 s</b><span>time to first audio (AA)</span></div> <div class="k"><b>28</b><span>built-in voices, plus cloning</span></div> <div class="k"><b>20</b><span>listed locales, auto-detected</span></div> <div class="k"><b>5</b><span>tool types: files, web, X, MCP, functions</span></div> <div class="k"><b>SIP</b><span>phone and contact-center routing</span></div> </div> <pre><code>wss://api.x.ai/v1/realtime?model=grok-voice-3.0 {"type": "session.update", "session": { "voice": "eve", "reasoning": {"effort": "high"}, "turn_detection": {"type": "server_vad"}, "tools": [{"type": "web_search"}] }}</code></pre> <p class="note">The <code>grok-voice-latest</code> alias already points to <code>grok-voice-3.0</code>. Pin the versioned name in production. Grok Voice 2.0 is deprecated.</p> </div> <div class="ft"><span>Data: <a href="https://x.ai/news/grok-voice-3" target="_blank" rel="noopener">SpaceXAI</a>, <a href="https://artificialanalysis.ai/speech-to-speech" target="_blank" rel="noopener">Artificial Analysis</a>, <a href="https://docs.x.ai/developers/model-capabilities/audio/speech-to-speech" target="_blank" rel="noopener">SpaceXAI docs</a></span><span class="brand">© Marktechpost</span></div> </div> <script> (function(){ var R=document.getElementById('mtp-gv3'); function post(){try{parent.postMessage({mtpEmbed:'gv3',height:R.offsetHeight+40},'*')}catch(e){}} R.querySelectorAll('.tab').forEach(function(t){t.addEventListener('click',function(){ R.querySelectorAll('.tab').forEach(function(x){x.classList.remove('on')}); R.querySelectorAll('.pnl').forEach(function(x){x.classList.remove('on')}); t.classList.add('on');document.getElementById(t.dataset.p).classList.add('on'); if(t.dataset.p==='p2')drawBars();if(t.dataset.p==='p3')drawDots();setTimeout(post,60);});}); /* wave */ var w=document.getElementById('gvWave');for(var i=0;i<48;i++){var b=document.createElement('i');b.style.animationDelay=(i*0.045)+'s';w.appendChild(b);} /* pipeline */ var S=[ ['Caller speaks','Audio streams over a WebSocket (or SIP for phone calls) as PCM at 8 to 48 kHz, G.711 or Opus.'], ['Turn detection','Server-side voice activity detection decides when the caller has finished, and handles barge-in when they interrupt.'], ['Reasoning','Reasoning is on by default with reasoning.effort set to "high". 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