Grok 4.5
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Overview
First flagship under the unified SpaceXAI brand (xAI dissolved into SpaceX; rebrand Jul 6, 2026): 1.5T-parameter MoE on the new V9 base...
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Voice chatApp available
Details
- Vendor
- xAI
- Type
- LLM
- Release year
- 2026
- Jurisdiction
- USA
- CEO
- Elon Musk
- Key staffers
- Part of SpaceX (Elon Musk, CEO); Gwynne Shotwell (SpaceX President)
- Deployment
- Cloud (grok.com + X apps + API; Cursor integration)
- Open source
- No
- Free tier
- Yes
- Subscription
- API: $2/M input, $6/M output.
- Stock status
- Public via SpaceX (Nasdaq: SPCX; IPO Jun 12, 2026)
- X
- @SpaceXAI
Known safety issues
SpaceXAI self-disclosed that a Cursor codebase snapshot contaminated training and inflated its CursorBench score.
AIDb Rating
AIDb v2.0 (curated): Capability 9/10 · Currency 10/10 · Access 5.5/10 · Significance 7/10 → 8.38
Last verified 2026-08-09 · Primary source ↗
Cite this
“Grok 4.5.” AIDb — The AI Database. Verified 2026-08-09. https://theaidatabase.com/m/xai-grok-4-5.html
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