xAI

2026-09-17

REGULATION · 1 SOURCE · TechCrunch AI

Executives clash over AI safety vs control after Amodei essay; Zuckerberg says Meta delayed Muse

Dario Amodei’s long essay calling for a slowdown in AI development has intensified debate among tech executives about whether safety needs coordinated public regulation or can be handled by companies themselves. Meta CEO Mark Zuckerberg said Meta delayed the Muse model to focus on safety, while other leaders and reports of a self-regulatory standards body from major labs highlight tensions over regulation, competitive advantage, and potential regulatory capture.

6.0

2026-09-16

MODELS · 1 SOURCE · xAI

xAI adds 21 multilingual flagship voices to Grok Voice and upgrades original five

xAI released 21 new flagship voices for Grok Voice, all natively multilingual and available now in the Realtime Voice Agent API, the Text to Speech API, and the Grok Voice Agent Builder. The original five voices (Ara, Eve, Leo, Rex, Sal) were retrained with an improved recipe for more natural pacing, phrasing, and emphasis; developers can also clone a custom voice from about one minute of audio.

6.0

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

MODELS · 1 SOURCE · xAI

Grok 4.5 becomes available in GitHub Copilot

Grok 4.5, SpaceXAI’s latest coding model, is now available as a selectable model in GitHub Copilot across VSCode and other Copilot products (including cloud agents and the Copilot CLI). For some businesses and enterprises the model must be enabled in Copilot settings; Grok 4.5 is also offered directly via the SpaceXAI console at $2 per million input tokens and $6 per million output tokens.

7.0

2026-09-16

MODELS · 1 SOURCE · xAI

xAI launches Imagine Image 2.0 (grok-imagine-image-2.0) with advanced editing and API access

Imagine Image 2.0 is now generally available as the Quality Mode on grok.com, on iOS and Android apps, and via the API as grok-imagine-image-2.0. The update emphasizes fidelity and iterative editing—including a magic wand, precise segmentation, background removal, multi-reference editing, templates for common workflows, and fills for arbitrary aspect ratios—and is ranked second on Arena’s text-to-image and image-edit leaderboards (as of Aug 7, 2026).

7.0

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