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A dense, open-weight 9.65B-parameter multimodal model from Qwen with a 262K-token native context window and text, image, and video input.
Key strengths. The model uses a hybrid Gated DeltaNet plus Gated Attention architecture that Qwen designed for high-throughput serving, and because it's dense rather than mixture-of-experts, every one of its 9.65B parameters is active on each call — there's no routing overhead to reason about. Its chat template exposes an optional enable_thinking flag, giving developers a way to opt into visible reasoning traces for harder problems without committing to a always-on reasoning-first model. Independent evaluation from Artificial Analysis gives Qwen3.5-9B (in reasoning mode) an Intelligence Index score of 14 — well above the median for open-weight models of similar size — with strong reported results on benchmarks such as MMLU-Pro (82.5%) and GPQA Diamond (81.7%), so it isn't a quality-blind pick.
Limitations. Qwen has not published a training data cutoff for this checkpoint, so recency of knowledge is unclear. It does not natively ingest documents or PDFs as a distinct input format — only text, image, and video are supported — and independent quality-tier data remains thin: Artificial Analysis' Intelligence Index score of 14 (estimated) is currently the main third-party reference point, rather than a full peer-reviewed benchmark suite.
| Inference Provider | Sovereignty | Runs in | In / out per 1M | Status | Pin |
|---|---|---|---|---|---|
| L3 | €0.07 / 0.35 | Online | |||
| L1 | €0.10 / 0.15 | Online |
12 use cases classified by the curator. The note says why.
Small parameter count suggests low-latency, low-cost inference suitable for straightforward classification tasks, though no benchmark scores confirm accuracy.
A compact model with tool-calling is a cost-efficient fit for routine support chatbot flows, though no curated benchmarks confirm dialogue quality.
Tool-calling and small model size support fast structured extraction tasks, though unpublished context window caps document length handled per call.
Tool-calling support makes this viable for structured function-calling apps, though the 9B scale and lack of benchmark data limit confidence versus larger Qwen variants.
Tool-calling capability aligns with structured-output extraction workflows; size and cost profile favor high-volume, low-complexity extraction jobs.
Lightweight 9B scale is well-suited to high-throughput tagging workloads where cost and speed matter more than deep reasoning.
Agentic coding requires large context and strong multi-step reasoning; this draft-status 9B model lacks disclosed context window or benchmark evidence to support this workload.
Tool-calling is present but browser automation demands long-context state tracking and robust planning that a small, unbenchmarked 9B model is unlikely to sustain.
No coding-specific benchmarks or context window are published; at 9B scale, code completion quality is likely inferior to larger, benchmarked coding models.
At ~9B parameters with no disclosed context window, this model lacks the reasoning depth typically needed for reliable multi-step agentic planning.
Sourced numbers, not our own evaluations. Percentiles are against the whole Stav catalogue.
Computed from aa-intelligence-index, gpqa-diamond, aa-engineering-index, aa-coding-index, livecodebench, terminal-bench-v4, ifbench, aa-lcr.
curl https://api.stav.ai/v1/chat/completions \
-H "Authorization: Bearer $STAV_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "qwen/qwen3-5-9b",
"reasoning_effort": "high",
"messages": [{"role": "user", "content": "Hello!"}]
}'→ X-Stav-Request-Id · X-Stav-Model · X-Stav-Provider → X-Stav-Sovereignty-Level — the rung the request was served at