Kimi K3 is Officially Open Source

K3 at a Glance

Metric	K3	GPT-5	DeepSeek V4
MMLU-Pro	89.2%	87.8%	88.1%
HumanEval+	94.7%	93.2%	92.8%
GSM8K	96.4%	95.1%	95.6%
Context Window	256K	128K	128K
API Input Price	$0.50/M	$2.50/M	$0.50/M
API Output Price	$2.00/M	$10.00/M	$2.00/M

Source: Artificial Analysis, July 2026

Two Ways to Use K3

Option 1: Local Inference (requires hardware)

Option 2: API (recommended, 2-minute setup)

Start Using K3 API in 2 Minutes

Step 1: Get Your Free API Key (30 seconds)

curl -X POST https://tokenease.io/api/register \
  -H "Content-Type: application/json" \
  -d '{"email":"your@email.com"}'

Get $1 worth of tokens (1M tokens) valid for 14 days. No credit card required.

Step 2: Call K3 in 3 Lines

from openai import OpenAI

client = OpenAI(
    api_key="your-tokenease-key",
    base_url="https://tokenease.io/v1"
)

response = client.chat.completions.create(
    model="kimi-k3",
    messages=[{"role": "user", "content": "Explain quantum computing like I'm 5"}]
)

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

Step 3: Switch Models Instantly

models = ["kimi-k3", "deepseek-chat", "glm-4-plus", "qwen-plus"]

for model in models:
    response = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": "Write a Python function to reverse a string"}]
    )
    print(f"{model}: {response.choices[0].message.content[:50]}...")

Why TokenEase?

Feature	Moonshot Direct	OpenRouter	TokenEase
K3 Input Price	$0.50/M	$0.75/M	$0.50/M
K3 Output Price	$2.00/M	$3.00/M	$2.00/M
Single Endpoint	No	Yes	Yes
Overseas Developers	CN phone required	Supported	No CN phone needed
Multi-Model	Separate accounts	Supported	One key, all models
Auto-Failover	No	Limited	6-provider backup
Free Trial	Limited	No	1M tokens

Who Is This For?

• Developers building apps that need frontier reasoning at 1/5th the cost of GPT-5
• Startups running multi-model A/B tests before committing to one
• Researchers benchmarking K3 vs DeepSeek vs GLM on the same dataset
• International teams who need Chinese AI models without a Chinese phone number

Get Started Now