SpaceXAI

Overview

SpaceXAI is the public-facing brand for xai following spacex IPO integration. First public model release: grok 4.5 (July 8, 2026), co-trained with cursor.

Recent Developments

• 2026-07-27: open-secure-ai-alliance partner; open-sourced Grok Build coding agent; plans open Grok weights (2026-07-27-nvidia-open-secure-ai-alliance-blog)

• 2026-07-15: Open-sourced grok-build-cli coding agent harness (Apache 2.0) for audit and local-first inference (2026-07-16-spacexai-grok-build-open-source)

Grok 4.5 Public Launch (July 2026)

• Pricing: $2/Minput,$6/M output tokens; fast variant $4/$18
• Availability: Grok Build, all Cursor plans, SpaceXAI API console
• Hardware: Tens of thousands of NVIDIA GB300 GPUs in Memphis data centers
• EU: Not available at launch; expected mid-July 2026
• Architecture: Mixture-of-experts; jointly trained with Cursor

Corporate Context

Post-spacex IPO ($1.7T); xAI acquired by SpaceX February 2026. Public launch follows June 28 private beta at SpaceX/Tesla (2026-07-06-grok-45-private-beta-spacex-tesla).

Related

• open-secure-ai-alliance

• grok-build-cli

• xai

• grok

• spacex

• cursor

• elon-musk

• frontier-models

• mixture-of-experts

Sources

• 2026-07-09-grok-45-xai-official
• 2026-07-09-grok-45-cursor-blog
• 2026-07-09-grok-45-axios
• 2026-07-09-spacexai-grok-45-public-launch