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Grok 4 Fast by xAI | AI Market Cap

Grok 4 Fast

#1180Large Language ModelsProprietary

X

xAI

Lower-latency Grok 4 variant that preserves strong reasoning and coding performance at lower cost and faster response times.

Model updates refreshed1mo agoJul 1, 2026news + changelog

Website View Updates

11.3

Quality Score

---

Arena ELO

Undisclosed

Parameters

256K

Context

Evidence profile

How complete is this record?

This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.

68%

coverage

Developing evidence

15 of 22 public signals

Technical profile60%

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0

Downloads

0

Likes

Sep 2025

Released

3/5 signals

Evaluation75%

3/4 signals

Access & cost100%

5/5 signals

Adoption25%

1/4 signals

Provenance75%

3/4 signals

Research-backed technical record

Parameters

—

Training compute

Not reported

Dataset scale

Not reported

Base model

Not reported

Source-reported access: API access · Unknown confidence

Gaps we are still tracking

parameter count

Metadata sources

Epoch AI, Data on AI Models. Used under CC BY with attribution.

Launches

2

high

Pricing

1

high

Benchmarks

1

high

General

7

low

What Changed Recently

Recent launch, pricing, benchmark, and API signals linked to this model or its provider.

LaunchesxAI1mo ago

Introducing Voice Agent Builder: a no-code platform to create human-like voice agents with Grok Voice. Available today at $0.05 / min. https://t.co/kUkF7zqvfR https://t.co/OCIq1oDYar

Social & Blog Posts10

Introducing Voice Agent Builder: a no-code platform to create human-like voice agents with Grok Voice. Available today at $0.05 / min. https://t.co/kUkF7zqvfR https://t.co/OCIq1oDYar

X/Twitter@xaixAI

Other

provider-benchmarksxAI11mo ago

Grok 4 Fast benchmark update

xAI published official provider-reported benchmark evidence for Grok 4 Fast.

#benchmark#provider-reported#official

78.1

DeepSeek-R1#117

OpenAI·Undisclosed

DeepSeek-V3#128

LaunchesxAI2mo ago

Grok models are now available on Databricks Agent Bricks. Bring SpaceXAI's latest models to your enterprise data to power capable AI agents. https://t.co/BAjiDZnipq https://t.co/GwLff8atiC

PricingxAI2mo ago

Grok Voice offers state-of-the-art performance with human-like timing, tone, and warmth. And it's a fraction the price of competitors. Check it out: https://t.co/R2Wpc3Ig0Z

BenchmarksxAI11mo ago

Grok 4 Fast benchmark update

xAI published official provider-reported benchmark evidence for Grok 4 Fast.

GeneralxAI1mo ago

State of the art voice APIs from SpaceXAI, now in the Vercel AI Gateway

launch

launch

1mo ago

Introducing Voice Agent Builder: a no-code platform to create human-like voice agents with Grok Voice. Available today at $0.05 / min. https://t.co/kUkF7zqvfR https://t.co/OCIq1oDYar

#xai#twitter#x

X/Twitter@xaixAIannouncementgeneral1mo ago

State of the art voice APIs from SpaceXAI, now in the Vercel AI Gateway

#xai#twitter#x

Grok models are now available on Databricks Agent Bricks. Bring SpaceXAI's latest models to your enterprise data to power capable AI agents. https://t.co/BAjiDZnipq https://t.co/GwLff8atiC

X/Twitter@xaixAIlaunchlaunch2mo ago

Grok models are now available on Databricks Agent Bricks. Bring SpaceXAI's latest models to your enterprise data to power capable AI agents. https://t.co/BAjiDZnipq https://t.co/GwLff8atiC

#xai#twitter#x

X/Twitter@xaixAIannouncementgeneral2mo ago

You can now use your SuperGrok or X Premium subscription inside @warpdotdev. Try it out from Warp Agent Settings and switch to the Grok Build model. https://t.co/dCgIkX5GIQ

#xai#twitter#x

X/Twitter@xaixAIannouncementgeneral2mo ago

The @MongoDB plugin is live in the Grok Build Plugin Marketplace. Explore data, optimize database performance, and build high performance vector search systems with a single prompt.

#xai#twitter#x

X/Twitter@xaixAIpricingpricing2mo ago

Grok Voice offers state-of-the-art performance with human-like timing, tone, and warmth. And it's a fraction the price of competitors. Check it out: https://t.co/R2Wpc3Ig0Z

#xai#twitter#x

Read more about how Tori, eToro's agent, leverages models and real-time data from SpaceXAI to help consumers analyze market sentiment https://t.co/XUEIexqMGu https://t.co/pNDP4GnT7o

X/Twitter@xaixAIannouncementgeneral2mo ago

Read more about how Tori, eToro's agent, leverages models and real-time data from SpaceXAI to help consumers analyze market sentiment https://t.co/XUEIexqMGu https://t.co/pNDP4GnT7o

#xai#twitter#x

Learn more about our work with @gopuff to build a personalized shopping assistant with chat, voice, and image models https://t.co/abZWEmFK7z https://t.co/TCxxGlrkHg

X/Twitter@xaixAIannouncementgeneral2mo ago

Learn more about our work with @gopuff to build a personalized shopping assistant with chat, voice, and image models https://t.co/abZWEmFK7z https://t.co/TCxxGlrkHg

#xai#twitter#x

X/Twitter@xaixAIannouncementgeneral2mo ago

Try Grok models on @Cloudflare's AI Gateway!

#xai#twitter#x

X/Twitter@xaixAIannouncementgeneral2mo ago

Meet Go by Gopuff and SpaceXAI: your personal shopping assistant that knows what you want and delivers in minutes. Powered by Grok text, audio, and image models.

#xai#twitter#x