$ diff hy4-preview grok-4-6
Hy4 preview vs Grok 4.6
Values come from Hy4 preview and Grok 4.6, 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.
TencentHy4 preview
- context
- 1M
- weights
- open
- $/M in
- $0.834
- $/M out
- $2.501
- context
- 500K
- weights
- closed
- $/M in
- $2
- $/M out
- $6
What actually differs
- Context window
- Hy4 preview takes 1M against 500K — 2× more room in a single request.
- Input price
- Hy4 preview at $0.834/M against $2/M — 2.4× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
- Output price
- Hy4 preview at $2.501/M against $6/M — 2.4× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Weights
- Hy4 preview publishes weights (Apache-2.0); Grok 4.6 is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- Hy4 preview shipped 21 days after Grok 4.6 (2026-08-28 vs 2026-08-07).
Full spec
| Attribute | Hy4 preview | Grok 4.6 |
|---|---|---|
| Developer | Tencent | xAI |
| Released | 2026-08-28 | 2026-08-07 |
| Context window | over 1,000,000 | 500,000 tokens |
| Pricing | $0.834/M input · $2.501/M output | $2/M input · $6/M output; a request reaching 200K tokens re-prices in full at $4.00/M input · $1.00/M cached input · $12.00/M output |
| License | Apache-2.0 | proprietary |
| Availability | Hugging Face (BF16 + FP8), ModelScope, GitCode, CNB, Tencent Cloud TokenHub, OpenRouter, WorkBuddy, CodeBuddy, Yuanbao, ima | API |