> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bytespike.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Kimi K2.6

> Current Moonshot flagship — 128K context with measurably tighter output and tool-call generation.

**Vendor:** Moonshot
**Model ID:** `kimi-k2-6`
**Capability:** 128K context · tool use · streaming · structured output · CJK-native
**Pricing:** per-token, mid tier ([live rate](https://bytespike.ai/pricing#text))

Kimi K2.6 is the recommended starting point for new Chinese-market
work on the gateway. Native CJK prompt understanding (sharper than
non-Chinese flagships on idiom and document layout), 128K context
window, tighter tool-call argument generation. For
long-document extraction, agent flows where Chinese tone matters,
and CJK-heavy summarisation, this is the default.

## Request

```bash theme={null}
curl https://llm.bytespike.ai/v1/chat/completions \
  -H "Authorization: Bearer $BYTESPIKE_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "model": "kimi-k2-6",
    "messages": [{"role": "user", "content": "用这本财报的内容回答：现金流量表的关键变化是什么？"}]
  }'
```

### Body parameters

| Field             | Type    | Required | Default   | Notes                                  |
| ----------------- | ------- | -------- | --------- | -------------------------------------- |
| `model`           | string  | yes      | —         | `kimi-k2-6`                            |
| `messages`        | array   | yes      | —         | CJK accepted natively.                 |
| `max_tokens`      | integer | no       | model max | Max: 16384.                            |
| `tools`           | array   | no       | —         | Function calling supported (parallel). |
| `response_format` | object  | no       | —         | JSON / structured output.              |
| `stream`          | boolean | no       | false     | SSE streaming.                         |

## Response

```json theme={null}
{
  "id": "chatcmpl-…",
  "object": "chat.completion",
  "model": "kimi-k2-6",
  "choices": [{"index": 0, "message": {"role": "assistant", "content": "..."}, "finish_reason": "stop"}],
  "usage": {"prompt_tokens": 142850, "completion_tokens": 524, "total_tokens": 143374}
}
```

## Code examples

<CodeGroup>
  ```bash cURL theme={null}
  curl https://llm.bytespike.ai/v1/chat/completions \
    -H "Authorization: Bearer $BYTESPIKE_API_KEY" \
    -H "content-type: application/json" \
    -d '{"model": "kimi-k2-6", "messages": [{"role": "user", "content": "提取关键条款"}]}'
  ```

  ```python Python theme={null}
  from openai import OpenAI

  client = OpenAI(base_url="https://llm.bytespike.ai/v1", api_key="$BYTESPIKE_API_KEY")
  resp = client.chat.completions.create(
      model="kimi-k2-6",
      messages=[{"role": "user", "content": "用这本财报的内容回答：现金流量表的关键变化是什么？"}],
  )
  print(resp.choices[0].message.content)
  ```

  ```javascript Node theme={null}
  import OpenAI from "openai"

  const client = new OpenAI({
    baseURL: "https://llm.bytespike.ai/v1",
    apiKey: process.env.BYTESPIKE_API_KEY,
  })
  const resp = await client.chat.completions.create({
    model: "kimi-k2-6",
    messages: [
      { role: "user", content: "用这本财报的内容回答：现金流量表的关键变化是什么？" },
    ],
  })
  console.log(resp.choices[0].message.content)
  ```
</CodeGroup>

## Streaming + caching

`"stream": true` for SSE. Automatic prompt caching — for long
prompts, cache hits are the highest-leverage cost optimisation.

## Errors

| Code                        | Trigger  | Billed?         |
| --------------------------- | -------- | --------------- |
| 400 / 401 / 402 / 422 / 429 | Standard | No              |
| 5xx                         | Upstream | No (auto-retry) |

## When to use

* New Chinese-market projects — default starting point for CJK work.
* Long-document extraction in Chinese / Japanese / Korean.
* For Chinese open-weight alternatives, see [GLM-5-1](/api-reference/text/glm-5-1) or [DeepSeek V4 Pro](/api-reference/text/deepseek-v4-pro).

## Limits

| Limit                   | Value          |
| ----------------------- | -------------- |
| Context window          | 128K tokens    |
| Max output              | 16384 tokens   |
| Supports tool use       | Yes (parallel) |
| Supports vision         | No             |
| Supports streaming      | Yes            |
| Supports prompt caching | Automatic      |