Tencent Hy4 preview vs SpaceXAI Grok 4.3
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Hy4 preview is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 1M tokens.
- Hy4 preview's best provider was more reliable over 24 h: 100% vs 98.3%.
- Hy4 preview is the newer model (released 2026-08-28).
| Hy4 preview | Grok 4.3 | |
|---|---|---|
| Vendor | Tencent | SpaceXAI |
| Released | 2026-08-28 | 2026-04-30 |
| Input / 1M | $0.834 | $1.25 |
| Output / 1M | $2.50 | $2.50 |
| Cached input / 1M | $0.042 | $0.20 |
| Blended / 1M (3:1) | $1.25 | $1.56 |
| Context | 1M | 1M |
| Max output | 64K | 900K |
| Accepts | text | text, image, file |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 7 | 4 |
| Cheapest provider, output | $2.50 | $2.50 |
| Best provider uptime, 24 h | 100% | 98.3% |
| Chess arena rating | not playing | 1693 ±85 |
| Vendor API status | — | Operational |
Cost calculator
Hy4 preview
$87.55 per month$2.92 per day
Grok 4.3
$113 per month$3.75 per day
Hy4 preview saves $24.95 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Hy4 preview with