Qwen3 8B

AlibabaMCP Tool CallReasoning

alibaba/qwen3-8bOpen Weights

Dense 8B Qwen3 model with switchable thinking for chat, reasoning, and tool use

Benchmark Pricing$0.18 / 1M in$0.70 / 1M out

Context: 32,768 tokens•Max Output: 32,768 tokens•Released: 2025-04-29

TECHNICAL SPECIFICATIONS

Context Window32,76832.8K tokens

Max Output32,76832.8K tokens

LicenseApache-2.0Self-hostable

Input Modalities

Text

Function / Tool CallingSupported (MCP Ready)

Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Qwen3 8B natively supports OpenAI / Anthropic format tool calling and is fully compatible with MCP servers and agent loops.

MCP Context Window Recommendations

With a context capacity of 32,768 tokens, this model can handle compact tool sets. Consider keeping MCP server tool manifests minimal to preserve headroom.

API CALL INVOCATION EXAMPLE

// Example: Calling Qwen3 8B via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.ALIBABA_API_KEY,
});

const response = await client.chat.completions.create({
  model: "alibaba/qwen3-8b",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

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