For 10,000 requests of 2,000 tokens in and 500 out, Kimi K2.5 costs 30% less than Kimi K2.6 on Zurelay: $8.75 against $12.50. Both are below their labs' list prices: 68% for Kimi K2.5 and 68% for Kimi K2.6.
Side by side
| Kimi K2.5 | Kimi K2.6 | |
|---|---|---|
| Lab | Moonshot AI | Moonshot AI |
| Released | Jan 27, 2026 | Apr 20, 2026 |
| Context window | 256K tokens | 256K tokens |
| Max output | — | — |
| Reads | Text, Images, Video | Text, Images, Video |
| Reasoning levels | none, high | none, high |
| Price per 1M, in / out | $0.20 / $0.95 | $0.30 / $1.30 |
| Lab list price | $0.60 / $3.00 | $0.95 / $4.00 |
| Cached input per 1M | $0.035 | $0.05 |
| 10K typical requests | $8.75 | $12.50 |
Prices in US dollars per 1M tokens on Zurelay, live from the catalog. A typical request is 2,000 tokens in and 500 out. Output limits are each lab's.
What they're for
Kimi K2.5 is Moonshot AI's open-weight, natively multimodal K2 model for coding, vision and agent work, released in January 2026, with a 262K-token context window and image and video input. The Zurelay Kimi K2.5 API serves it through one OpenAI-compatible endpoint at 68% below Moonshot's list price.
Kimi K2.6 is Moonshot AI's open-weight K2 model for long-horizon coding, front-end design and agents, released in April 2026, with a 262K-token context window and image and video input. The Zurelay Kimi K2.6 API serves it through one OpenAI-compatible endpoint at 68% below Moonshot's list price.
Try both
Specs don't say which model handles your work better. Send the same requests to both and compare the answers, the tokens and the bill. On Zurelay that's a change of model name.
To price a whole month, use the LLM cost calculator.
from openai import OpenAIclient = OpenAI(base_url="https://api.zurelay.com/v1", api_key="YOUR_ZURELAY_KEY")prompt = [{"role": "user", "content": "Summarize this contract: ..."}]# Same key, same code: only the model name changesfor model in ["kimi-k2.5", "kimi-k2.6"]: reply = client.chat.completions.create(model=model, messages=prompt) print(model, reply.usage.total_tokens, reply.choices[0].message.content[:200])For 10,000 requests of 2,000 tokens in and 500 out, Kimi K2.5 costs 30% less than Kimi K2.6 on Zurelay: $8.75 against $12.50. Per 1M tokens, Kimi K2.5 is $0.20 input and $0.95 output, and Kimi K2.6 is $0.30 and $1.30.
They're the same on Zurelay: 256K tokens each.
Yes. One Zurelay key calls both. With an OpenAI SDK, point it at https://api.zurelay.com/v1 and change only the model name, kimi-k2.5 or kimi-k2.6, to switch.
Yes. Each model is served over several routes run by independent sellers, and every route is tested before it serves requests and every day after, with identity, dated-knowledge and reasoning checks that catch an older or different model sold under the name you asked for.
Create a key in seconds, point the SDK you already use at Zurelay, and every request costs up to 90% less from the first token.