# Grok 4.6

Frontier SpaceXAI model (released 2026-08-12) focused on long-running agents and ambitious interactive/visual work. Successor to Grok 4.5; available in Cursor, Grok Build, SpaceXAI API, and partners (OpenRouter, Vercel, Cloudflare).

Tags: model, grok, spacexai, cursor, agents, pricing

## Snapshot

- **Launch:** 2026-08-12 (Cursor blog + x.ai news)
- **Training notes (vendor):** longer supplemental run than 4.5; Grok 4.5 used to regenerate SFT trajectories; agentic RL across knowledge work, coding, kernel, web, CAD, etc.
- **Behavior claims:** stronger first passes on visual/interactive projects; more self-testing/verification on long trajectories.
- **Headline eval (vendor):** matches GPT-5.6 Sol on Artificial Analysis Intelligence Index (~61 composite).
- **Context (docs.x.ai):** 500,000 tokens; knowledge cutoff Feb 1, 2026; text+image in / text out; reasoning effort low→xhigh.

## Pricing & access (label sources)

| Item | Value | Source |
|---|---|---|
| Input | $2 / 1M tokens | Cursor blog, x.ai news |
| Output | $6 / 1M tokens | same |
| Fast variant | ~2× price | same |
| Launch promo | 2× included usage in Cursor & Grok Build (first week) | same |
| Long-prompt rates | Secondary reports: ≥200k prompt → $4 / $12 | VentureBeat / docs nuance — verify on console |
| Cached input | $0.50 / 1M (docs) | docs.x.ai — secondary to launch posts |

## Practitioner field guide

Eric Zakariasson (Cursor) published a same-day field guide after weeks as daily driver — see [[grok-4-6-field-guide]]. Takeaways: short prompts + preferences, define done, verification loop with browser use, sync workflow when results matter, steer 3D/video/physics with explicit look-loops.

## Not the same as Grok Bot

[[grok-bot]] is the persistent cloud-computer teammate product. Grok 4.6 is the **model** powering Cursor agent / API / Build workloads (and may underlie Bot runs — product docs should be checked before asserting).

## Related

- [[grok-4-6-field-guide]]
- [[grok-bot]]

## Sources

1. https://cursor.com/blog/grok-4-6
2. https://x.ai/news/grok-4-6
3. https://docs.x.ai/developers/grok-4-6
4. [[grok-4-6-field-guide]] / raw/`grok-4-6-field-guide-2026-08-12/`