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OpenKey

Qwen3 Max Thinking

QwenReleased Feb 9, 2026

Qwen3-Max-Thinking is the flagship reasoning model in the Qwen3 series, designed for high-stakes cognitive tasks that require deep, multi-step reasoning. By significantly scaling model capacity and reinforcement learning compute, it...

Try in playground
Context window
262K tokens
Max output
33K tokens
Input
text
Output
text
Tokenizer
Qwen
Released
Feb 9, 2026
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.780$0.023$0.803
Output$3.90$0.117$4.02

Supported parameters

  • include_reasoning
  • logprobs
  • max_tokens
  • presence_penalty
  • reasoning
  • response_format
  • seed
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_logprobs
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model qwen/qwen3-max-thinking.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3-max-thinking",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="qwen/qwen3-max-thinking",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

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

const completion = await client.chat.completions.create({
  model: "qwen/qwen3-max-thinking",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Qwen3 Max Thinking cost via API?
Through OpenKey, Qwen3 Max Thinking costs $0.803 per 1M input tokens and $4.02 per 1M output tokens. That is the provider price ($0.780 / $3.90) plus a flat 3% fee — nothing else.
What is Qwen3 Max Thinking's context window?
Qwen3 Max Thinking accepts up to 262K tokens of context and returns up to 33K tokens per request.
Is Qwen3 Max Thinking OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "qwen/qwen3-max-thinking" using any OpenAI SDK — only the base URL and API key change.
What inputs does Qwen3 Max Thinking support?
Qwen3 Max Thinking accepts text input and produces text output.

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