Grok Voice Think Fast 2.0 Released: Major Leaps in Voice Reasoning and Noise Robustness
XFreeze · x · 2026-07-30
SpaceXAI launched Grok Voice Think Fast 2.0, its most capable speech-to-speech model to date. The model boasts impressive benchmark numbers:
- Achieves an 82.9% overall Speech-to-Speech Quality Index, 97.2% on speech reasoning, and 56.5% on agentic voice tasks.
- Latency to first audio is just 0.70 seconds, using only 0.4x the reasoning tokens of version 1.0.
It shows significant breakthroughs in real-world transcription. Across thousands of phrases in 24 languages, it delivers 1.5–2x better accuracy than Deepgram Nova 3 and ElevenLabs Scribe v2. In noisy environments or compressed phone calls, this advantage grows to roughly 10x.
Furthermore, the model can reason while speaking, allowing tool calls to begin before the first sentence finishes without adding latency. Slated to become the default grok-voice-latest model on August 5, it is priced at $0.08 per minute. SpaceXAI has already deployed it on Starlink's customer lines, significantly boosting sales conversion and support containment rates.
Related event: xAI Releases Grok Voice 2.0, Tops Voice Agent Benchmarks(20 posts)→
More from Models
- Google restricts Gemini Pro access for Google Plus subscribers, matching free tier — EmergencyLess8861 · 2026-10-16
- Meta open-sources Muse Spark: runs on two Mac Studios, license bans passing output off as human-written — mawcopolow · 2026-10-16
- Golden Gate Claude explainer resurfaces: interpretability premise still holds — HarperSCarroll · 2026-10-16
- Hugging Face livestreams release of a new open-weight model — huggingface · 2026-10-16
- Step 5 Preview hits #2 on OpenRouter weekly leaderboard with 19.5T tokens in one week — StepFun_ai · 2026-10-16
- Meta's open Muse Spark needs 493GB of memory — far beyond any consumer laptop — TejasKumar_ · 2026-10-16