qwen
Qwen: Qwen3.5 Plus 2026-04-20
qwen/qwen3.5-plus-20260420
Our take
AI-assisted analysis based on the sources below. Suitability is an editorial assessment; test it on your own workload.
Qwen3.5 Plus 2026-04-20 is a large-scale multimodal language model from Alibaba, listed in the OpenRouter catalog under the ID qwen/qwen3.5-plus-20260420. According to the catalog, it accepts text, image, and video input and returns text, with a context window of 1,000,000 tokens. Reasoning is optional rather than mandatory, and the API exposes common controls such as tools, structured outputs, and sampling parameters. An independent model card was not available in this source pack, so all capability claims rest on catalog data alone.[1]
Strengths
- Catalog-reported multimodal input: the listing states it accepts text, image, and video while producing text output.[1]
- A 1,000,000-token context window is reported by the OpenRouter catalog, which would suit very long inputs.[1]
- The catalog lists optional reasoning plus tool calling and structured output parameters, suggesting flexibility for varied workflows.[1]
Limitations
- Evidence is catalog-only: no independent model card, measured benchmarks, or evaluation results were included in this source pack.[1]
- The catalog lists no knowledge cutoff and no Hugging Face release, so training-data recency and open-weight availability are unknown.[1]
- Real-world accuracy, latency, and multimodal quality remain unverified; validate on your own workloads before adopting.[1]
Where to use it
- Potentially suited to long-document analysis or large-context retrieval, given the catalog's reported 1M-token window.[1]
- May fit applications mixing text, image, and video inputs, though multimodal quality has not been measured here.[1]
- Could serve agentic or tool-using pipelines, since the catalog lists tool calling and structured output support.[1]
Sources
- [1] OpenRouter catalog · Qwen: Qwen3.5 Plus 2026-04-20Sources checked: Nov 13, 2026
About this model
Description below is the original text supplied by OpenRouter, shown in the source language.
Qwen3.5 Plus (April 2026) is a large-scale multimodal language model from Alibaba. It accepts text, image, and video input and produces text output, with a 1M token context window. This...
Specifications
- Model ID
- qwen/qwen3.5-plus-20260420
- Creator
- qwen
- Added to OpenRouter
- 27.04.2026
- Context length
- 1,000,000
- Modality
- text+image+video->text
- Input modalities
- text, image, video
- Output modalities
- text
- Token pricing
- USD per 1M tokens: in $0.300 / out $1.8
- Knowledge cutoff
- —
- Expiration date
- —
Tasks and capabilities
A grade appears only where the source supplies a matching measurement for that task, the model is active and the cohort holds at least 10 comparable models. The capability column lists facts the source declares — supported formats, reasoning and tool parameters — which are not measured quality.
| Task | Grade | Source-declared capability |
|---|---|---|
| General quality | No measurement | reasoning: optional · parameters: include_reasoning, reasoning |
| Coding | No measurement | — |
| Agents | No measurement | parameters: structured_outputs, tool_choice, tools |
| Writing | No measurement | output: text |
| Reasoning | No measurement | reasoning: optional · parameters: include_reasoning, reasoning |
| Document analysis | No measurement | — |
| Vision | No measurement | input: image |
| Image generation | No measurement | — |
| Audio | No measurement | — |
| Video | No measurement | input: video |
| Embeddings | No measurement | — |
Evaluations
No evaluations are supplied for this model.
How grades work
Each letter grade compares a model only against other models scored by the same source and metric in the current snapshot. S means the top 10%, A the next 20%, B the next 30%, C the rest. Models without a published measurement are shown as not rated — a supported format alone never implies measured quality.
- S — S — top 10% of the cohort
- A — A — next 20% of the cohort
- B — B — next 30% of the cohort
- C — C — below the B band
Providers
Optional live provider statistics from OpenRouter. Missing values are unknown, not zero.
| Provider | Context length | Price in /1M | Price out /1M | Latency p50 (30m, s) | Throughput p50 (30m, tok/s) | Uptime (30m) |
|---|---|---|---|---|---|---|
| Alibaba | 1,000,000 | $0.300 | $1.8 | — | — | 100% |
Provider data retrieved: 13.11.2026
Related articles
No published articles identify this model yet.