Qwen3.5-9B
$0.08 per 1M input tokens and $0.13 per 1M output tokens · 262K context · vision, tools, reasoning, JSON, open weights.
Prices checked Oct 21, 2026 · tracked by LLM Cost Index since Oct 21, 2026
What Qwen3.5-9B costs per month
Estimated monthly bill for typical workloads, using the cached-input price for repeated context. Try your own numbers in the cost calculator.
| Workload | Per month |
|---|---|
| Customer chatbot 1,000 conversations a day, 8 turns each | $31.08 |
| Document Q&A (RAG) 500 questions a day over retrieved documents | $7.82 |
| Coding / tool-using agent 200 tasks a day, long tool-heavy contexts | $21.12 |
| Content generation 30 long articles a day | $0.508 |
| Classification / extraction 100,000 short items a day | $77.85 |
Price history
We started tracking Qwen3.5-9B on Oct 21, 2026; the chart appears as soon as there is a second data point. See all recent price changes.
Where to run Qwen3.5-9B: 5 providers
Darkbloom is the cheapest at $0.08 input / $0.13 output per 1M tokens. Uptime is the average over the last 30 days as reported by OpenRouter; see provider reliability.
| Provider | Input / 1M | Output / 1M | Context | Uptime | Notes |
|---|---|---|---|---|---|
| Darkbloom | $0.08 | $0.13 | 262K | 99.9% | fp4 |
| DeepInfra | $0.10 | $0.15 | 262K | 99.9% | bf16 |
| Parasail | $0.10 | $0.25 | 262K | 98.3% | bf16 |
| SiliconFlow | $0.10 | $0.15 | 262K | 99.8% | fp8 |
| Together | $0.17 | $0.25 | 262K | 99% | — |
Cheaper alternatives to Qwen3.5-9B
Models with the same tool calling, image input, structured output for at least 20% less (3:1 input/output mix), most capable first.
| Model | Input / 1M | Output / 1M | Context | Capabilities |
|---|---|---|---|---|
| GLM 5.3 Flash Z.ai | $0.041 | $0.12 | 1.05M | visiontoolsreasoningJSONopen weights |
| Qwen3.7 Flash Qwen | $0.03 | $0.13 | 1M | visiontoolsreasoningJSON |
| GLM Flash Latest ~Z AI | $0.041 | $0.12 | 1.05M | visiontoolsreasoningJSON |
How to pay less for Qwen3.5-9B
For a customer chatbot (1,000 conversations a day, 8 turns each) that costs $39.72 a month at list price without caching:
| Option | Per month | You save |
|---|---|---|
| Move to GLM 5.3 Flash (similar capabilities) | $16.82 | $22.90 (58%) |
| Use prompt caching (60% of input cached) | $31.08 | $8.64 (22%) |
Other workloads: cut-your-bill tool for Qwen3.5-9B.
Specifications
| Model ID | qwen/qwen3.5-9b |
| Input | text, image, video |
| Output | text |
| Tool calling | Yes |
| Structured output | Yes |
| Reasoning mode | Yes |
| Open weights | Yes — Qwen/Qwen3.5-9B |
| Released | Mar 10, 2026 |
FAQ
- How much does Qwen3.5-9B cost?
- $0.08 per million input tokens and $0.13 per million output tokens; cached input costs $0.04 per million. Prices as of Oct 21, 2026.
- What is the context window of Qwen3.5-9B?
- 262K tokens, with up to 66K output tokens per response.
- Does Qwen3.5-9B support images, tools and structured output?
- Images as input: yes. Tool calling: yes. Structured (JSON) output: yes. Reasoning mode: yes.
- What are cheaper alternatives to Qwen3.5-9B?
- Models with the same key capabilities for at least 20% less include GLM 5.3 Flash ($0.041 / $0.12), Qwen3.7 Flash ($0.03 / $0.13), GLM Flash Latest ($0.041 / $0.12).
More from Qwen: all Qwen models · how we collect prices