Qwen · Model
Qwen3.5-9B pricing, context window and specs
Qwen3.5-9B costs $0.10 per million input tokens and $0.15 per million output tokens, and reads up to 256,000 tokens per request. By blended price it is the cheapest of Qwen’s 13 current models here.
- Input / 1M
- $0.10
- Output / 1M
- $0.15
- Cached / 1M
- –
- Context
- 256,000
- Max output
- 32,768
- Released
- 2026-03-10
Estimate your cost with Qwen3.5-9BCompare all Qwen modelsCount tokens for Qwen3.5-9B
Pricing
Qwen3.5-9B API pricing
| Price per 1M tokens | Input | Output |
|---|---|---|
| Standard | $0.10 | $0.15 |
Output costs 1.5× the input price, so long replies drive the bill more than long prompts. No cached-input price is published, so repeated prompt prefixes are billed at the full input price.
Examples
What Qwen3.5-9B costs in practice
| Workload | Tokens in / out | Requests/day | Per request | Per month |
|---|---|---|---|---|
| Support chatbot | 1,500 / 400 | 1,000 | $0.00021 | $6.39 |
| RAG app | 6,000 / 500 | 500 | $0.000675 | $10.27 |
| Coding agent | 40,000 / 2,000 | 200 | $0.0043 | $26.16 |
| Document summariser | 8,000 / 600 | 300 | $0.00089 | $8.12 |
Change any number in the cost calculator.
Context
Context window
Qwen3.5-9B accepts up to 256,000 tokens per request, roughly 192,000 English words or 384 pages. That budget is shared between your prompt and the reply, and a single reply is capped at 32,768 tokens.
Filling the whole window with one prompt costs about $0.0256 at list price, so for repeated long-document work, retrieval (sending only the relevant parts) or prompt caching is usually much cheaper.
Features
Capabilities
- Image input
- Yes
- Tool / function calling
- Yes
- Reasoning mode
- Yes
- Prompt caching
- No
- Structured output
- Yes
- Open weights
- Yes
- Accepts
- text, image, video
- Knowledge cutoff
- Not published
As declared by the provider’s API. It shows a feature exists, not how well it works.
API
Qwen3.5-9B model ID
- OpenRouter
qwen/qwen3.5-9b- Open weights
- Qwen/Qwen3.5-9B
Use the OpenRouter ID when calling it through OpenRouter; Qwen’s own API may name it differently. See the model ID reference for the providers we document.
Qwen
Where Qwen3.5-9B sits in Qwen’s line-up
Ranked by blended price (three parts input to one part output, $0.1125 per 1M for Qwen3.5-9B), it is the cheapest of Qwen’s 13 current models here. One step up, Qwen3.8 Flash costs $0.23 (2× as much). Unlike Qwen3.5-9B, it reads up to 1,000,000 tokens (256,000 here) and caps a reply at 131,072 tokens (32,768 here). See every Qwen model and price
| Model | Input / 1M | Output / 1M | Context | Released |
|---|---|---|---|---|
| Qwen3.5-9B (this page) | $0.10 | $0.15 | 256,000 | 2026-03-10 |
| Qwen3.8 Flash | $0.15 | $0.47 | 1,000,000 | 2026-08-26 |
| Qwen3.8 Omni Flash | $0.15 | $0.47 | 1,000,000 | 2026-09-21 |
| Qwen3 Coder Next | $0.12 | $0.80 | 262,144 | 2026-02-04 |
| Qwen3.6 35B A3B | $0.10 | $0.95 | 262,144 | 2026-04-27 |
| Qwen3 VL 8B Instruct | $0.25 | $0.75 | 262,144 | 2025-10-14 |
| Qwen3.7 Plus | $0.32 | $1.28 | 1,000,000 | 2026-06-03 |
| Qwen3.5-122B-A10B | $0.26 | $2.08 | 262,144 | 2026-02-25 |
| Qwen3.6 27B | $0.32 | $3.20 | 262,144 | 2026-04-27 |
| Qwen3.5 397B A17B | $0.55 | $3.50 | 262,144 | 2026-02-16 |
| Qwen3.8 2.4T A95B | $2 | $6 | 1,048,576 | 2026-08-12 |
| Qwen3.8 Max (0902) | $2 | $6 | 1,000,000 | 2026-09-03 |
| Qwen3.8 Max Prime | $4 | $12 | 1,000,000 | 2026-09-23 |
Qwen’s current models with a page here, cheapest first. Older and superseded models are listed on the provider page and in the comparison table.
Save
Cheaper alternatives
No cheaper model in our data keeps the same essentials.
Current models from major providers, one per provider, that keep image input, tool calling, a reasoning mode, a usable context window and output limit. Compared by blended price.
Compare
Similarly priced models
- Gemma 4 26B A4BGoogle$0.0675 / $0.225
- Nemotron 3 Nano 30B A3BNVIDIA$0.06 / $0.24
- Ministral 3 3B 2512Mistral$0.10 / $0.10
- Seed 1.6 FlashByteDance Seed$0.075 / $0.30
- GPT-6 LunaOpenAI$0.10 / $0.50
Current models from other major providers, closest blended price.
FAQ
Qwen3.5-9B questions
How much does Qwen3.5-9B cost?
Qwen3.5-9B costs $0.10 per million input tokens and $0.15 per million output tokens. A typical chatbot reply (1,500 tokens in, 400 out) costs about $0.00021. Use the LLM cost calculator for your own workload.
What is Qwen3.5-9B’s context window?
256,000 tokens, about 192,000 English words or 384 printed pages, shared between your prompt and the reply. A single reply can be up to 32,768 tokens.
Does Qwen3.5-9B support prompt caching and batch requests?
No cached-input price is published for it. No batch price is published for it.
What are cheaper alternatives to Qwen3.5-9B?
In our data there’s no cheaper model with the same essentials and a comparable context window.
What is the API model ID for Qwen3.5-9B?
On OpenRouter it is qwen/qwen3.5-9b. Qwen’s own API may use a different name, so check its model list before you deploy. Pass the ID as the model value in each request.
Is Qwen3.5-9B open source?
Yes, Qwen3.5-9B has open weights, so you can run it yourself or choose between several hosting providers. The prices here are a typical hosted price.