$ diff grok-4-7 kimi-k2-8-preview
Grok 4.7 vs Kimi K2.8 Preview
Values come from Grok 4.7 and Kimi K2.8 Preview, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
xAIGrok 4.7
- context
- 500K
- weights
- —
- $/M in
- $2
- $/M out
- $6
- context
- 1M
- weights
- closed
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- Kimi K2.8 Preview takes 1M against 500K — 2× more room in a single request.
- Recency
- Grok 4.7 shipped 10 days after Kimi K2.8 Preview (2026-09-21 vs 2026-09-11).
Full spec
| Attribute | Grok 4.7 | Kimi K2.8 Preview |
|---|---|---|
| Developer | xAI | Moonshot AI |
| Released | 2026-09-21 | 2026-09-11 |
| Context window | 500K | 1,000,000 |
| Pricing | $2/M input · $0.50/M cached input · $6/M output (prompts ≤200K); $4/M · $1/M · $12/M above 200K | not recorded |
| License | not recorded | proprietary |
| Availability | Grok API, Cursor, Grok Build, OpenRouter, Vercel, Cloudflare | Kimi API platform, Kimi Code, Kimi Work |