GLM-5 vs Kimi K2.8 Preview
Comparing GLM-5 and Kimi K2.8 Preview across benchmarks, pricing, and capabilities.
Zhipu AI · Moonshot AI · Updated for 2026
Which is better?
GLM-5 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 GLM-5
- 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
5 reported for GLM-5 · 0 for Kimi K2.8 Preview
GLM-5 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 GLM-5's 200,000 tokens. Only GLM-5 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Kimi K2.8 Preview supports multimodal inputs, whereas GLM-5 does not.
Kimi K2.8 Preview can handle both text and other forms of data like images, making it suitable for multimodal applications.
GLM-5
Kimi K2.8 Preview
License
Usage and distribution terms
GLM-5 is licensed under MIT, 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.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
GLM-5 was released on 2026-02-11, while Kimi K2.8 Preview was released on 2026-09-11.
Kimi K2.8 Preview is 7 months newer than GLM-5.
Feb 11, 2026
7 months ago
Sep 11, 2026
3 days ago
7mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GLM-5 is available from FriendliAI, ZAI. Kimi K2.8 Preview is available from Moonshot AI.
GLM-5
Kimi K2.8 Preview
Outputs Comparison
Judge for yourself.
Run your own prompts against GLM-5 and Kimi K2.8 Preview side-by-side, then vote on the output you prefer.
FAQ
Common questions about GLM-5 vs Kimi K2.8 Preview.