Qwen3.5 9B API

Model details

Context window

262K tokens

Max output

33K tokens

Input

Text, images

Output

Text

Capabilities

Reasoning, Vision, Tool calling, Streaming, JSON output

Interfaces

OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses

Why teams pick it

• Qwen3.5 9B for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.

Call Qwen3.5 9B

Qwen3.5 9B answers on any of the APIs below — pick the one your code already speaks and just swap in your Inferray key.

curl https://api.inferray.com/v1/chat/completions \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "qwen3.5-9b",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

curl https://api.inferray.com/v1/messages \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "qwen3.5-9b",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}'

curl https://api.inferray.com/v1/responses \
  -H "Authorization: Bearer inferray_..." \
  -H "Content-Type: application/json" \
  -d '{
  "model": "qwen3.5-9b",
  "input": "Hello"
}'

Use Qwen3.5 9B in your tools

Every coding agent below has a setup guide. Set the model to qwen3.5-9b.

• Claude Code
• Codex
• opencode
• Cline
• Roo Code
• Aider
• Continue

More from Alibaba

Alternatives to Qwen3.5 9B

• Granite 4.2 8BGranite 4.2 8B for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.Ibm
• Muse Spark 1.2 ContributorMuse Spark 1.2 Contributor for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.Meta
• GLM-4 32B (0414-128k)GLM-4 32B (0414-128k) for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.Z.ai

Questions about this model

How much does the Qwen3.5 9B API cost?

Qwen3.5 9B costs $0.1 per 1M input tokens and $0.15 per 1M output tokens on Inferray. That is the list price, with no gateway fee on top.

Is there a free tier for Qwen3.5 9B?

No. You add credit and pay Qwen3.5 9B's list rate for each request — seats, projects, and API keys are free, and pay-as-you-go credit never expires.

Am I charged for failed requests?

No. A request that fails without returning a result is not billed. If a response fails part-way, the tokens already processed before the failure are charged.

Is Qwen3.5 9B included in Token Plans?

No. Qwen3.5 9B is pay-as-you-go only; Token Plans cover the other text models in the catalog.

Can I use Qwen3.5 9B in Claude Code?

Yes. Set ANTHROPIC_BASE_URL to https://api.inferray.com, ANTHROPIC_AUTH_TOKEN to your Inferray key, and ANTHROPIC_MODEL to qwen3.5-9b. The same key works in Codex, opencode, Cline, and other agents.

Does Qwen3.5 9B support tool calling and vision?

Qwen3.5 9B supports tool calling, image input, reasoning, JSON output and streaming on Inferray.

Is it the real Qwen3.5 9B?

Yes. A request for qwen3.5-9b is answered by Qwen3.5 9B from Alibaba, billed at its published list price. Inferray never substitutes a different or smaller model.