kimi-k2.7-code

Text Generation • Moonshot AI

@cf/moonshotai/kimi-k2.7-code

  • Cloudflare-hosted
  • Function calling
  • Reasoning
  • Vision

Kimi K2.7 is a frontier-scale open-source 1T parameter model with a 262.1k context window, multi-turn tool calling, vision inputs, and structured outputs for agentic workloads.

Paid access required

This model is not available through standard Workers Free billing. To use it, upgrade to the Workers Paid plan or use prepaid AI Gateway credits.

Model Info
Context Window ↗ 262,144 tokens
Terms and License link ↗
Function calling ↗ Yes
Reasoning Always on
Vision Yes
Unit Pricing $0.95 per M input tokens, $4.00 per M output tokens, $0.19 per M cached input tokens

Playground

Try out this model with Workers AI LLM Playground. It does not require any setup or authentication and is an instant way to preview and test a model directly in the browser.

Launch the LLM Playground

Usage

export interface Env {
  AI: Ai;
}

export default {
  async fetch(request, env): Promise<Response> {

    const messages = [
      { role: "system", content: "You are a friendly assistant" },
      {
        role: "user",
        content: "What is the origin of the phrase Hello, World",
      },
    ];

    const stream = await env.AI.run("@cf/moonshotai/kimi-k2.7-code", {
      messages,
      stream: true,
    });

    return new Response(stream, {
      headers: { "content-type": "text/event-stream" },
    });
  },
} satisfies ExportedHandler<Env>;

export interface Env {
  AI: Ai;
}

export default {
  async fetch(request, env): Promise<Response> {

    const messages = [
      { role: "system", content: "You are a friendly assistant" },
      {
        role: "user",
        content: "What is the origin of the phrase Hello, World",
      },
    ];
    const response = await env.AI.run("@cf/moonshotai/kimi-k2.7-code", { messages });

    return Response.json(response);
  },
} satisfies ExportedHandler<Env>;

import os
import requests

ACCOUNT_ID = "your-account-id"
AUTH_TOKEN = os.environ.get("CLOUDFLARE_AUTH_TOKEN")

prompt = "Tell me all about PEP-8"
response = requests.post(
  f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai/run/@cf/moonshotai/kimi-k2.7-code",
    headers={"Authorization": f"Bearer {AUTH_TOKEN}"},
    json={
      "messages": [
        {"role": "system", "content": "You are a friendly assistant"},
        {"role": "user", "content": prompt}
      ]
    }
)
result = response.json()
print(result)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run/@cf/moonshotai/kimi-k2.7-code \
  -X POST \
  -H "Authorization: Bearer $CLOUDFLARE_AUTH_TOKEN" \
  -d '{ "messages": [{ "role": "system", "content": "You are a friendly assistant" }, { "role": "user", "content": "Why is pizza so good" }]}'

OpenAI compatible endpoints

Workers AI also supports OpenAI compatible API endpoints for /v1/chat/completions and /v1/embeddings. For more details, refer to Configurations .

Parameters

<details>

<summary>Synchronous — Send a request and receive a complete response</summary>

Input format

Prompt Simple text input for single-turn interactionsMessages Structured conversation format with roles (user, assistant, system)

prompt

<code>string</code>requiredminLength: 1The input text prompt for the model to generate a response.

model

<code>string</code>ID of the model to use (e.g. '@cf/zai-org/glm-4.7-flash, etc').

▶audio{}

<code>object</code>Parameters for audio output. Required when modalities includes 'audio'.

frequency_penalty

<code>number | null</code>Penalizes new tokens based on their existing frequency in the text so far.

logit_bias

<code>object | null</code>Modify the likelihood of specified tokens appearing in the completion. Maps token IDs to bias values from -100 to 100.

logprobs

<code>boolean | null</code>Whether to return log probabilities of the output tokens.

top_logprobs

<code>integer | null</code>How many top log probabilities to return at each token position (0-20). Requires logprobs=true.

max_tokens

<code>integer | null</code>Deprecated in favor of max_completion_tokens. The maximum number of tokens to generate.

max_completion_tokens

<code>integer | null</code>An upper bound for the number of tokens that can be generated for a completion.

metadata

<code>object | null</code>Set of 16 key-value pairs that can be attached to the object.

modalities

<code>array | null</code>Output types requested from the model (e.g. ['text'] or ['text', 'audio']).

n

<code>integer | null</code>How many chat completion choices to generate for each input message.

parallel_tool_calls

<code>boolean</code>default: trueWhether to enable parallel function calling during tool use.

▶prediction{}

<code>object</code>

presence_penalty

<code>number | null</code>Penalizes new tokens based on whether they appear in the text so far.

▶chat_template_kwargs{}

<code>object</code>

▶response_format

<code>one of</code>Specifies the format the model must output.

seed

<code>integer | null</code>If specified, the system will make a best effort to sample deterministically.

▶stop

<code>one of</code>

store

<code>boolean | null</code>Whether to store the output for model distillation / evals.

stream

<code>boolean | null</code>If true, partial message deltas will be sent as server-sent events.

▶stream_options{}

<code>object</code>

temperature

<code>number | null</code>Sampling temperature between 0 and 2.

▶tool_choice

<code>one of</code>Controls which (if any) tool is called by the model. 'none' = no tools, 'auto' = model decides, 'required' = must call a tool.

▶tools[]

<code>array</code>A list of tools the model may call.

top_p

<code>number | null</code>Nucleus sampling: considers the results of the tokens with top_p probability mass.

user

<code>string</code>A unique identifier representing your end-user, for abuse monitoring.

▶web_search_options{}

<code>object</code>Options for the web search tool (when using built-in web search).

▶function_call

<code>one of</code>

▶functions[]

<code>array</code>minItems: 1maxItems: 128

id

<code>string</code>A unique identifier for the chat completion.

object

<code>string</code>

created

<code>integer</code>Unix timestamp (seconds) of when the completion was created.

model

<code>string</code>The model used for the chat completion.

▶choices[]

<code>array</code>minItems: 1

▶usage{}

<code>object</code>

system_fingerprint

<code>string | null</code>

</details>

<details>

<summary>Streaming — Send a request with stream: true and receive server-sent events</summary>

Input format

Prompt Simple text input for single-turn interactionsMessages Structured conversation format with roles (user, assistant, system)

prompt

<code>string</code>requiredminLength: 1The input text prompt for the model to generate a response.

model

<code>string</code>ID of the model to use (e.g. '@cf/zai-org/glm-4.7-flash, etc').

▶audio{}

<code>object</code>Parameters for audio output. Required when modalities includes 'audio'.

frequency_penalty

<code>number | null</code>Penalizes new tokens based on their existing frequency in the text so far.

logit_bias

<code>object | null</code>Modify the likelihood of specified tokens appearing in the completion. Maps token IDs to bias values from -100 to 100.

logprobs

<code>boolean | null</code>Whether to return log probabilities of the output tokens.

top_logprobs

<code>integer | null</code>How many top log probabilities to return at each token position (0-20). Requires logprobs=true.

max_tokens

<code>integer | null</code>Deprecated in favor of max_completion_tokens. The maximum number of tokens to generate.

max_completion_tokens

<code>integer | null</code>An upper bound for the number of tokens that can be generated for a completion.

metadata

<code>object | null</code>Set of 16 key-value pairs that can be attached to the object.

modalities

<code>array | null</code>Output types requested from the model (e.g. ['text'] or ['text', 'audio']).

n

<code>integer | null</code>How many chat completion choices to generate for each input message.

parallel_tool_calls

<code>boolean</code>default: trueWhether to enable parallel function calling during tool use.

▶prediction{}

<code>object</code>

presence_penalty

<code>number | null</code>Penalizes new tokens based on whether they appear in the text so far.

▶chat_template_kwargs{}

<code>object</code>

▶response_format

<code>one of</code>Specifies the format the model must output.

seed

<code>integer | null</code>If specified, the system will make a best effort to sample deterministically.

▶stop

<code>one of</code>

store

<code>boolean | null</code>Whether to store the output for model distillation / evals.

stream

<code>boolean | null</code>If true, partial message deltas will be sent as server-sent events.

▶stream_options{}

<code>object</code>

temperature

<code>number | null</code>Sampling temperature between 0 and 2.

▶tool_choice

<code>one of</code>Controls which (if any) tool is called by the model. 'none' = no tools, 'auto' = model decides, 'required' = must call a tool.

▶tools[]

<code>array</code>A list of tools the model may call.

top_p

<code>number | null</code>Nucleus sampling: considers the results of the tokens with top_p probability mass.

user

<code>string</code>A unique identifier representing your end-user, for abuse monitoring.

▶web_search_options{}

<code>object</code>Options for the web search tool (when using built-in web search).

▶function_call

<code>one of</code>

▶functions[]

<code>array</code>minItems: 1maxItems: 128

type

<code>string</code>

contentType

<code>text/event-stream</code>

format

<code>binary</code>

</details>

<details>

<summary>Batch — Send multiple requests in a single API call</summary>

▶requests[]

<code>array</code>

id

<code>string</code>A unique identifier for the chat completion.

object

<code>string</code>

created

<code>integer</code>Unix timestamp (seconds) of when the completion was created.

model

<code>string</code>The model used for the chat completion.

▶choices[]

<code>array</code>minItems: 1

▶usage{}

<code>object</code>

system_fingerprint

<code>string | null</code>

</details>

API Schemas (Raw)

SynchronousInput Open Download

SynchronousOutput Open Download

StreamingInput Open Download

StreamingOutput Open Download

BatchInput Open Download

BatchOutput Open Download

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