Alibaba

Qwen/Qwen3.5 2B

Name: Qwen/Qwen3.5 2B
Brand: Alibaba
Price: 0.02 USD
Availability: InStock

Qwen/Qwen3.5 2B is a large language model by Alibaba. Priced at $0.02 per million input tokens and $0.1 per million output tokens, it is one of the most cost-efficient options in its class. Access Qwen/Qwen3.5 2B through Inworld Router with OpenAI SDK compatibility, built-in failover, and intelligent routing across providers.

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Use This Model

Step 1 — Create Router

curl --location 'https://api.inworld.ai/router/v1/routers' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
  "name": "compare-frontier-models",
  "defaultRoute": {
    "route_id": "default",
    "variants": [
      {
        "variant": {
          "variant_id": "deepinfra/Qwen/Qwen3.5-2B-a",
          "model_id": "deepinfra/Qwen/Qwen3.5-2B"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct-b",
          "model_id": "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507-c",
          "model_id": "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507"
        },
        "weight": 34
      }
    ]
  }
}'

import requests

response = requests.post(
    "https://api.inworld.ai/router/v1/routers",
    headers={
        "Authorization": "Basic <your-api-key>",
        "Content-Type": "application/json",
    },
    json={
        "name": "compare-frontier-models",
        "defaultRoute": {
            "route_id": "default",
            "variants": [
                {
                    "variant": {
                        "variant_id": "deepinfra/Qwen/Qwen3.5-2B-a",
                        "model_id": "deepinfra/Qwen/Qwen3.5-2B"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct-b",
                        "model_id": "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507-c",
                        "model_id": "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507"
                    },
                    "weight": 34
                }
            ]
        }
    },
)
print(response.json())

const response = await fetch(
  "https://api.inworld.ai/router/v1/routers",
  {
    method: "POST",
    headers: {
      Authorization: "Basic <your-api-key>",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      name: "compare-frontier-models",
      defaultRoute: {
        route_id: "default",
        variants: [
          {
            variant: {
              variant_id: "deepinfra/Qwen/Qwen3.5-2B-a",
              model_id: "deepinfra/Qwen/Qwen3.5-2B",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct-b",
              model_id: "deepinfra/Qwen/Qwen2.5-VL-32B-Instruct",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507-c",
              model_id: "deepinfra/Qwen/Qwen3-235B-A22B-Thinking-2507",
            },
            weight: 34,
          },
        ],
      },
    }),
  }
);
const data = await response.json();
console.log(data);

Step 2 — Chat Completion

curl --location 'https://api.inworld.ai/v1/chat/completions' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
  "model": "inworld/compare-frontier-models",
  "messages": [{"role": "user", "content": "Hello!"}]
}'

Qwen/Qwen3.5 2B pricing and providers

Access Qwen/Qwen3.5 2B through DeepInfra via Inworld Router or Realtime API.

					Capabilities	Input modalities	Output modalities
DeepInfra	—	—	$0.02	$0.10	—

Other Alibaba models available through Inworld

Compare Qwen/Qwen3.5 2B with other Alibaba models available through Inworld Router or Realtime API.

					Capabilities
Qwen/Qwen2.5 VL 32B Instruct	128K	128K	$0.20	$0.60
Qwen/Qwen3 235B A22B Thinking 2507	262.1K	262.1K	$0.23	$2.30
Qwen/Qwen3 Max	—	—	$1.20	$6.00	—
Qwen/Qwen3 Max Thinking	—	—	$1.20	$6.00	—
Qwen/Qwen3.5 0.8B	—	—	$0.01	$0.05	—
Qwen/Qwen3.5 122B A10B	—	—	$0.29	$2.90	—
Qwen/Qwen3.5 27B	—	—	$0.26	$2.60	—
Qwen/Qwen3.5 35B A3B	—	—	$0.22	$2.20	—
Qwen/Qwen3.5 397B A17B	—	—	$0.54	$3.40	—
Qwen/Qwen3.5 4B	—	—	$0.03	$0.15	—
Qwen/Qwen3.5 9B	—	—	$0.04	$0.20	—
Qwen2 5 72b Instruct	32.8K	32.8K	$0.12	$0.39
Qwen3 14b Instruct	41K	41K	$0.12	$0.24
Qwen3 235b A22b Instruct 2507	262.1K	262.1K	$0.071	$0.10
Qwen3 30b A3b Instruct	41K	41K	$0.08	$0.28
Qwen3 32b Instruct	131K	131K	$0.08	$0.28
Qwen3 Coder 480b A35b Instruct	262.1K	262.1K	$0.40	$1.60
Qwen3 Coder 480b A35b Instruct Turbo	262.1K	262.1K	$0.22	$1.00
Qwen3 Next 80b A3b Instruct	262.1K	262.1K	$0.09	$1.10
Qwen3 Vl 235b A22b Instruct	—	—	$0.20	$0.88	—
Qwen3 Vl 30b A3b Instruct	—	—	$0.15	$0.60	—

View all models

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