SuperGrok Heavy

2026-09-16

MODELS · 1 SOURCE · xAI

SpaceXAI launches Grok 4.5, a model optimized for coding and agentic tasks

SpaceXAI says it has released Grok 4.5, its newest model trained alongside Cursor and optimized for coding, agentic workflows, and knowledge work. The company reports training across tens of thousands of NVIDIA GB300 GPUs, claims roughly 2× token efficiency versus leading models, 80 TPS serving speed, and priced the model at $2 per million input tokens and $6 per million output tokens; Grok 4.5 is available in Grok Build, Cursor, and via the SpaceXAI console with limited free usage offered.

8.0

2026-09-16

CODING · 1 SOURCE · xAI

Grok launches Build Mode in Early Beta for SuperGrok Heavy subscribers

Grok has introduced Build Mode, a feature that generates working websites, apps, games, and interactive dashboards live within chat. Build Mode is available in Early Beta today to SuperGrok Heavy subscribers on grok.com, iOS, and Android, and allows publishing to a grok.me link or a custom domain.

6.0

2026-09-16

MODELS · 1 SOURCE · xAI

xAI's Imagine Video 1.5 adds image and voice references and native 1080p

xAI updated its best video model, Imagine Video 1.5 (grok-imagine-video-1.5), to support image and voice references, text-to-video and image-to-video without a starting image, and native 1080p output. Image and voice references start in the US for SuperGrok Heavy and SuperGrok Plus on grok.com/imagine and iOS (rolling out to other tiers in days); image references, text-to-video, and native 1080p are also live in the xAI API, while voice-reference support is available on request.

8.0

2026-09-16

CODING · 1 SOURCE · xAI

Grok Build opens to all users on web, iOS, and Android

Grok Build is now available to all plans and on web, iOS, and Android; it converts natural-language descriptions into live, working apps inside Grok chats and supports publishing to grok.me with custom domains, remixing, GitHub export, secrets, and connectors. The release (previously an Early Beta limited to SuperGrok Heavy in July) also adds faster builds, X integration with rich link banners, generated cover art, and per-app access to Grok models via SpaceXAI APIs.

6.0