Kimi K2.8 预览版 · 始终开启思考模式 (reasoning_content 计入 token 消耗) · 支持工具调用与隐式提示缓存
Model ID: kimi-k2.8-preview · Type: chat · Provider: Moonshot
Endpoints: /v1/chat/completions · /v1/messages · /v1/responses
| Input (per 1M tokens) | $0.55 USD |
| Output (per 1M tokens) | $2.2 USD |
| Cache read (per 1M tokens) | $0.1375 USD |
from openai import OpenAI
client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
model="kimi-k2.8-preview",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)Kimi K2.8 Preview (`kimi-k2.8-preview`) is billed per usage at $0.55/1M in · $2.2/1M out, in USD. Current pricing is always listed at https://j8api.com/models/kimi-k2.8-preview.
Send a request to https://api.router.ai/v1/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "kimi-k2.8-preview"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.
Kimi K2.8 Preview can be called on: /v1/chat/completions; /v1/messages; /v1/responses.
Kimi K2.8 Preview accepts up to 1,048,576 input tokens and can return up to 131,072 output tokens. Requests exceeding the input limit are rejected before reaching the model.
Kimi K2.8 Preview supports: function_calling, prompt_caching, reasoning, web_search.
Kimi K2.8 Preview is a chat model from Moonshot, available through the J8API gateway with the same API key as every other model.
Call it through the J8API OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.