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Home/Models/Moonshot AI/Kimi K2.6
M

Kimi K2.6

Input:$0.48/M
Output:$2.4/M
Kimi K2.6 preview version is now available for testing.
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Overview
Features
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Technical Specifications of Kimi K2.6

ItemKimi K2.6 (Code Preview)
Model familyKimi K2 series (MoE architecture)
ProviderMoonshot AI
Model typeOpen-weight / agentic LLM
Total parameters~1 trillion (MoE)
Active parameters~32B per token
ArchitectureMixture-of-Experts (384 experts, 8 active/token)
Context window256K tokens
Input typesText (code, documents), limited multimodal (inherited from K2.5)
Output typesText (code, reasoning, structured outputs)
Knowledge cutoff~April 2025
Training data~15.5 trillion tokens
Release statusBeta (April 2026, Code Preview)
API compatibilityOpenAI / Anthropic-style APIs supported

What is Kimi K2.6?

Kimi K2.6 is the latest agentic coding–focused iteration of Moonshot AI’s K2 series, designed to handle large-scale software engineering workflows, tool orchestration, and long-context reasoning. It builds directly on K2.5 by improving multi-step planning, debugging across large repositories, and tool-calling reliability.

Unlike general-purpose LLMs, K2.6 is optimized for developer-centric workflows, especially those involving autonomous agents and multi-file environments. It powers tools like Kimi Code / OpenClaw and excels at real-world dev tasks such as large refactors, dependency management, debugging, and orchestrating complex terminal operations.

Main Features of Kimi K2.6

  • Enhanced Agentic Coding — Superior multi-file edits, repository-scale reasoning, and autonomous terminal workflows (faster tool calls and deeper research dives reported by beta users).
  • 256K Long Context — Handles entire large codebases, long issue histories, or extensive logs in one session.
  • Strong Tool Orchestration — Interleaves chain-of-thought with 200–300+ sequential tool calls without drift; optimized for speed (users report 3x faster responses vs K2.5).
  • Efficient MoE Design — High capability at lower inference cost (only 32B active params).
  • Coding & Frontend Strength — Excellent at generating functional apps, fixing bugs, React/HTML work, and multilingual coding.
  • Integration Ready — OpenAI/Anthropic-compatible API, easy integration with agents like Cursor, OpenClaw, etc.

Benchmark Performance of Kimi K2.6

As a very recent preview (April 2026), full independent benchmarks are still emerging. It builds on K2.5/K2 Thinking strengths:

  • Strong gains in agentic coding (SWE-Bench Verified family ~71–76% range in prior K2 variants).
  • Competitive/exceeding on LiveCodeBench, Terminal-Bench, and multi-step agent tasks.
  • Users and early tests highlight practical wins over previous versions in speed, planning depth, and reliability for real dev workflows (e.g., dependency hell resolution, full project builds).

Kimi K2.6 vs Kimi K2.5 vs Claude Opus 4.5

  • vs Kimi K2.5 — K2.6 offers noticeably faster tool calls, deeper reasoning, and better agent planning. Beta feedback: “night and day” for terminal coding agents.
  • vs Claude Opus 4.5 — Competitive or better on coding/agentic tasks at significantly lower cost (often cited ~76% cheaper). Strong in long-horizon tool use and open-weight flexibility.
  • Practical Edge — K2.6 shines in terminal/CLI-first workflows and cost-efficiency for heavy agent use.

Representative Use Cases

  1. Terminal-based Development — Full project setup, debugging, testing, and deployment orchestration.
  2. Large Refactors & Migrations — Multi-file changes across repositories with long context.
  3. Autonomous Agents — Building reliable coding agents with tool calling (OpenClaw, custom scaffolds).
  4. Frontend & Full-Stack Prototyping — Turning ideas/screenshots into working React/HTML apps.
  5. Research + Code — Deep dives into documentation/codebases combined with implementation.

How to Access on CometAPI: Use model ID kimi-k2.6 . OpenAI-compatible chat endpoint.

FAQ

Can Kimi K2.6 handle full repository-scale coding tasks?

Yes, with its 256K token context window and optimized agentic capabilities, Kimi K2.6 excels at multi-file edits, large refactors, and reasoning across entire codebases or long terminal sessions.

How does Kimi K2.6 compare to Kimi K2.5 for agentic coding?

Kimi K2.6 brings faster tool calls (often 3x perceived speed), deeper reasoning traces, and more reliable multi-step planning, making it significantly stronger for terminal-first and autonomous coding agents.

What is the context window of Kimi K2.6?

Kimi K2.6 supports a 256K token context window, enabling it to process very large documents, full repositories, or extended conversation histories in a single session.

Is Kimi K2.6 good for terminal and CLI-based development?

Yes — it is specifically tuned as a coding agent for terminal workflows, with strong performance on tool orchestration, dependency management, debugging, and running multi-step build/test/deploy sequences.

How does Kimi K2.6 perform against Claude Opus 4.5 on coding tasks?

Kimi K2.6 delivers competitive or superior results on many agentic coding benchmarks while offering substantially lower cost (frequently cited around 76% cheaper) and open-weight deployment flexibility.

Does Kimi K2.6 support tool calling and long-horizon agent workflows?

Yes, it is optimized for interleaving reasoning with tool calls and can maintain coherence across 200–300+ sequential actions, ideal for complex autonomous coding agents.

What are the key technical specs of the Kimi K2.6 model?

It uses a 1T total / 32B active MoE architecture, 256K context, 160K vocabulary, and 61 layers. It activates only 8 experts per token for efficient high-performance inference.

Features for Kimi K2.6

Explore the key features of Kimi K2.6, designed to enhance performance and usability. Discover how these capabilities can benefit your projects and improve user experience.

Pricing for Kimi K2.6

Explore competitive pricing for Kimi K2.6, designed to fit various budgets and usage needs. Our flexible plans ensure you only pay for what you use, making it easy to scale as your requirements grow. Discover how Kimi K2.6 can enhance your projects while keeping costs manageable.
Comet Price (USD / M Tokens)Official Price (USD / M Tokens)Discount
Input:$0.48/M
Output:$2.4/M
Input:$0.6/M
Output:$3/M
-20%

Sample code and API for Kimi K2.6

Access comprehensive sample code and API resources for Kimi K2.6 to streamline your integration process. Our detailed documentation provides step-by-step guidance, helping you leverage the full potential of Kimi K2.6 in your projects.
POST
/v1/chat/completions
Python
JavaScript
Curl
from openai import OpenAI
import os

# Get your CometAPI key from https://www.cometapi.com/console/token
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com/v1"

client = OpenAI(base_url=BASE_URL, api_key=COMETAPI_KEY)

completion = client.chat.completions.create(
    model="kimi-k2.6",
    messages=[{"role": "user", "content": "Hello! Tell me a short joke."}],
)

print(completion.choices[0].message.content)

Python Code Example

from openai import OpenAI
import os

# Get your CometAPI key from https://www.cometapi.com/console/token
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com/v1"

client = OpenAI(base_url=BASE_URL, api_key=COMETAPI_KEY)

completion = client.chat.completions.create(
    model="kimi-k2.6",
    messages=[{"role": "user", "content": "Hello! Tell me a short joke."}],
)

print(completion.choices[0].message.content)

JavaScript Code Example

import OpenAI from "openai";

// Get your CometAPI key from https://www.cometapi.com/console/token
const COMETAPI_KEY = process.env.COMETAPI_KEY || "<YOUR_COMETAPI_KEY>";
const BASE_URL = "https://api.cometapi.com/v1";

const client = new OpenAI({
  apiKey: COMETAPI_KEY,
  baseURL: BASE_URL,
});

const completion = await client.chat.completions.create({
  model: "kimi-k2.6",
  messages: [{ role: "user", content: "Hello! Tell me a short joke." }],
});

console.log(completion.choices[0].message.content);

Curl Code Example

#!/bin/bash

# Get your CometAPI key from https://www.cometapi.com/console/token
# Export it as: export COMETAPI_KEY="your-key-here"

response=$(curl -s https://api.cometapi.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -d '{
    "model": "kimi-k2.6",
    "messages": [
      {
        "role": "user",
        "content": "Hello! Tell me a short joke."
      }
    ]
  }')

printf '%s\n' "$response" | python -c 'import json, sys; print(json.load(sys.stdin)["choices"][0]["message"]["content"])'

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