SiliconFlow

SiliconFlow's OpenAI-compatible API offers 200+ optimized models — DeepSeek R1, DeepSeek V3, Qwen3, and more. SiliconFlow integration is rolling out on TheRouter; some models (e.g. DeepSeek R1, Qwen3) are already routable directly today. TheRouter adds automatic failover, unified billing, and team governance on top.

• ✓OpenAI-compatible API — change one line (base_url) and your existing OpenAI SDK code works instantly
• ✓3 models completely free — Qwen3-8B, DeepSeek-R1-Distill-Qwen-7B & DeepSeek-OCR at $0
• ✓200+ optimized models including DeepSeek R1, Qwen, GLM, Kimi & more
• ✓Privacy-first: no data stored, ever — ideal for sensitive workloads

Quickstart

# Python (openai SDK)
from openai import OpenAI

client = OpenAI(
    base_url="https://api.therouter.ai/v1",  # only change needed
    api_key="YOUR_THEROUTER_KEY",
)

# Free model: Qwen3-8B via SiliconFlow — no credits needed
response = client.chat.completions.create(
    model="siliconflow/Qwen/Qwen3-8B",  # free model
    messages=[{"role": "user", "content": "Explain quantum entanglement"}],
    max_tokens=512,
)
print(response.choices[0].message.content)

# TypeScript / Node.js (openai SDK)
import OpenAI from "openai";
const client = new OpenAI({
  baseURL: "https://api.therouter.ai/v1",
  apiKey: "YOUR_THEROUTER_KEY",
});
const res = await client.chat.completions.create({
  model: "siliconflow/Qwen/Qwen3-8B",
  messages: [{ role: "user", content: "Explain quantum entanglement" }],
});
console.log(res.choices[0].message.content);

Use the global api.therouter.ai endpoint for new integrations; the legacy China accelerated endpoint is retired.

Python

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_THEROUTER_API_KEY",
    base_url="https://api.therouter.ai/v1",
)

resp = client.chat.completions.create(
    model="deepseek/deepseek-v3-2",
    messages=[{"role": "user",
              "content": "Hello!"}],
)
print(resp.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.THE_ROUTER_API_KEY,
  baseURL: "https://api.therouter.ai/v1",
});

const resp = await client.chat
  .completions.create({
    model: "deepseek/deepseek-v3-2",
    messages: [{ role: "user",
      content: "Hello!" }],
  });
console.log(
  resp.choices[0].message.content
);

curl

curl https://api.therouter.ai/v1/chat/completions   -H "Content-Type: application/json"   -H "Authorization: Bearer $KEY"   -d '{
    "model": "deepseek/deepseek-v3-2",
    "messages": [
      {"role": "user",
       "content": "Hello!"}
    ]
  }'