Qwen
Qwen3.5-9B
Qwen3.5-9B is a multimodal foundation model from the Qwen3.5 family, designed to deliver strong reasoning, coding, and visual understanding in an efficient 9B-parameter architecture. It uses a unified vision-language design...
Cost / 1M tokens
Very low usage$0.17
input
—
cached input
$0.25
output
Context Window
262K
Up to 236K max output
Modalities
text, image, video → text
Qwen3 tokenizer
Quickstart & API
qwen/qwen3.5-9bBest for & Strengths
Key Strengths
Recommended Workloads in ChatOSS
- Coding agents
- Complex reasoning & debugging
- Screenshot-to-code workflows
Verified Evaluations
Benchmarks & Frontier Comparison
How Qwen3.5-9B compares against leading open-weight and proprietary frontier models across independent agentic coding and reasoning suites.
| Benchmark (Metric) | Qwen3.5-9B | DeepSeek V4.1 Flash | GLM 5.3 | Kimi K3.1 Pro | Claude Opus 5.5 |
|---|---|---|---|---|---|
| Agentic & Software Engineering | |||||
| ChatOSS Agentic Coding Index (%) | — | 63.2% | 58.3% | 65% | 74.1% |
| SWE-Bench Verified (%) | — | 91.5% | 95.4% | 94.8% | 97% |
| DeepSWE v1.1 (Pass@1 %) | — | 77% | 69% | 73.5% | 74.2% |
| Vibe Code Bench v1.1 (%) | — | 87.7% | 78.1% | 88.4% | 90.3% |
| Terminal-Bench 4.0 (%) | — | 42.3% | 42% | 46.2% | 65.2% |
| Code Migration (%) | — | 45.6% | 44.2% | 52% | 66.7% |
| Intelligence & Token Economics | |||||
| Artificial Analysis Intelligence Index (0–100) | 13.3 | 39.5 | 44.8 | 55.1 | 57.6 |
| Input Price (/ 1M tokens) | $0.17 | $0.15 | $1.40 | $2.00 | $4.00 |
| Output Price (/ 1M tokens) | $0.25 | $0.60 | $4.40 | $10.00 | $20.00 |
Artificial Analysis Intelligence Index
Artificial Analysis
Active Provider Endpoints (6)
Upstream inference providers serving Qwen3.5-9B, with per-provider pricing, context limits, quantization, and 24-hour uptime.
| Provider | Input / 1M | Output / 1M | Cache Read / 1M | Context | Max Output | Quantization | Uptime (24h) |
|---|---|---|---|---|---|---|---|
Darkbloomcache darkbloom/fp4 | $0.08 | $0.13 | $0.04 | 262K | 66K | fp4 | 99.9% |
SiliconFlow siliconflow/fp8 | $0.10 | $0.15 | — | 262K | 236K | fp8 | 95.7% |
DeepInfra deepinfra/bf16 | $0.10 | $0.15 | — | 262K | 82K | bf16 | 93.1% |
Parasail parasail/bf16 | $0.10 | $0.25 | — | 262K | 236K | bf16 | 98.2% |
PrimeIntellect primeintellect/bf16 | $0.17 | $0.25 | — | 262K | 41K | bf16 | 100.0% |
Together together | $0.17 | $0.25 | — | 262K | 236K | — | 98.3% |
Supported API Parameters
Parameters accepted by this model when called through ChatOSS or OpenRouter.
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