Hy3 vs Kimi K2.8 Preview
Comparing Hy3 and Kimi K2.8 Preview across benchmarks, pricing, and capabilities.
Tencent · Moonshot AI · Updated for 2026
Which is better?
Hy3 and Kimi K2.8 Preview trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
Kimi K2.8 Preview also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Hy3
- you need open weights you can self-host or fine-tune
Choose Kimi K2.8 Preview
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Sep 2026
At a glance
The differences that matter most.
Individual benchmarks
31 reported for Hy3 · 0 for Kimi K2.8 Preview
Hy3 and Kimi K2.8 Previewdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Kimi K2.8 Preview accepts 1,048,576 input tokens compared to Hy3's 262,144 tokens. Only Hy3 specifies output context (262,144 tokens).
Input capabilities
Documented input modalities across available providers
Kimi K2.8 Preview supports multimodal inputs, whereas Hy3 does not.
Kimi K2.8 Preview can handle both text and other forms of data like images, making it suitable for multimodal applications.
Hy3
Kimi K2.8 Preview
License
Usage and distribution terms
Hy3 is licensed under Apache 2.0, while Kimi K2.8 Preview uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Hy3 was released on 2026-07-06, while Kimi K2.8 Preview was released on 2026-09-11.
Kimi K2.8 Preview is 2 months newer than Hy3.
Jul 6, 2026
2 months ago
Sep 11, 2026
1 weeks ago
2mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Hy3 is available from DeepInfra. Kimi K2.8 Preview is available from Moonshot AI.
Hy3
Kimi K2.8 Preview
Outputs Comparison
Judge for yourself.
Run your own prompts against Hy3 and Kimi K2.8 Preview side-by-side, then vote on the output you prefer.
FAQ
Common questions about Hy3 vs Kimi K2.8 Preview.