Hy3 preview vs Kimi K2.5
| Spec | Hy3 preview | Kimi K2.5 |
|---|---|---|
| Respan Index | 28.7 (#87) | 29.1 (#85) |
| Blended price per 1M | $0.285 | $1 |
| Context window | 256K | 256K |
| Input / output per 1M | $0.18 / $0.6 | $0.5 / $2.5 |
| Max output | - | - |
| Input | text | text, vision, video |
| Released | 2026-04-23 | 2026-01-27 |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | Hy3 preview | Kimi K2.5 |
|---|---|---|
| Coding | 11.6 Hy3 preview | 9.7 Kimi K2.5 |
| Agents | 36.8 Hy3 preview | 31.5 Kimi K2.5 |
| Reasoning | 27.2* Hy3 preview | 30.6 Kimi K2.5 |
| Knowledge & language | 23.9* Hy3 preview | 33.9 Kimi K2.5 |
| Human preference | 49.3 Hy3 preview | 51.6 Kimi K2.5 |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
Kimi K2.5 leads on 4 of the 5 benchmarks both report. Higher is better. Each score links to where it was published.
FAQ
Is Hy3 preview better than Kimi K2.5?
Kimi K2.5 scores 29.1 on the Respan Index (#85), ahead of Hy3 preview at 28.7 (#87). Kimi K2.5 leads on 4 of the 5 benchmarks both report.
Which is cheaper, Hy3 preview or Kimi K2.5?
Hy3 preview lists at $0.18 input and $0.6 output per 1M tokens; Kimi K2.5 at $0.5 and $2.5. Hy3 preview is 3.5x cheaper per token at list price.
Which has the larger context window?
Both accept 256K tokens of context.