Grok

Overview

Grok is xai/spacexai’s family of frontier language models integrated with the X platform, Grok Build, and cursor. Public launch July 2026 follows June private beta at SpaceX and Tesla.

Grok 4.5 Public Launch (July 8, 2026)

• Availability: Grok Build, all Cursor plans, SpaceXAI API console (2026-07-09-grok-45-xai-official)
• Pricing: $2/Minput,$6/M output; fast variant $4/$18
• Architecture: MoE; co-trained with cursor on NVIDIA GB300 cluster
• EU: Not available at launch; expected mid-July 2026
• Claims: Opus-class performance, ~4.2× fewer output tokens on SWE Bench Pro vs Opus 4.8 max — vendor benchmarks

Benchmark claims from SpaceXAI/Cursor announcements; independent verification limited.

Grok 4.5 Private Beta (June 2026)

• SpaceX and Tesla internal beta June 28, 2026 (2026-07-06-grok-45-private-beta-spacex-tesla)

Release Cadence

spacexai plans continued model releases; Grok 4.5 is first public post-IPO model.

Related

• xai
• spacex
• tesla
• cursor
• colossus
• frontier-models
• claude-opus-4-8

Sources

• 2026-07-06-grok-45-private-beta-spacex-tesla
• 2026-07-06-grok-45-cryptobriefing
• 2026-07-06-grok-45-digitalapplied
• 2026-07-06-grok-45-awesomeagents