# Grok Voice Think Fast 2.0: Benchmarks, pricing, specs

DevFeed: [Grok Voice Think Fast 2.0: Benchmarks, pricing, specs](<https://devfeed.tech/articles/grok-voice-think-fast-2-0-benchmarks-pricing-specs-16520.md>)

Original publisher: [Read original article](<https://appwrite.io/blog/post/whats-new-in-grok-voice-think-fast-20>)

Author: Aishwari Pahwa

Published: 2026-07-31T00:00:00Z

Content type: release

Language: en

Sources: [Appwrite Blog](<https://devfeed.tech/sources/appwrite-blog.md>)

Topics: [speech-to-speech](<https://devfeed.tech/topics/speech-to-speech.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>), [Latency](<https://devfeed.tech/topics/latency.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [ai](<https://devfeed.tech/tags/ai.md>), [audio](<https://devfeed.tech/tags/audio.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [latency](<https://devfeed.tech/tags/latency.md>), [pricing](<https://devfeed.tech/tags/pricing.md>), [speech-to-speech](<https://devfeed.tech/tags/speech-to-speech.md>), [voice](<https://devfeed.tech/tags/voice.md>)

## AI overview

This developer article introduces SpaceXAI's Grok Voice Think Fast 2.0, a speech-to-speech model announced on July 29, 2026. It covers vendor-reported benchmark results, latency, pricing, migration, and backend requirements, including 82.9% speech-to-speech quality, 0.70 seconds to first audio, and $0.08 per minute.

## Source excerpt

Grok Voice Think Fast 2.0 hits 0.70s time to first audio, 82.9% speech-to-speech quality, and $0.08 per minute. See the benchmarks, pricing, and migration path.