$ diff grok-4-7 k2-horizon
Grok 4.7 vs K2 Horizon
Values come from Grok 4.7 and K2 Horizon, 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.
What actually differs
- Context window
- K2 Horizon takes 524K against 500K — modestly more room in a single request.
- Recency
- Grok 4.7 shipped 18 days after K2 Horizon (2026-09-21 vs 2026-09-03).
Full spec
| Attribute | Grok 4.7 | K2 Horizon |
|---|---|---|
| Developer | xAI | Ifm |
| Released | 2026-09-21 | 2026-09-03 |
| Context window | 500K | 524,288 (flagship 375B-A23B, native from midtraining onward) |
| 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 | Apache 2.0 (weights and code) |
| Availability | Grok API, Cursor, Grok Build, OpenRouter, Vercel, Cloudflare | Hugging Face (weights, code, checkpoints, training data where redistributable) |