QQwen · Released Apr 27, 2026
Qwen3.5 Plus 2026-04-20
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...
- Top 47%OTIS Mock AIME
- Top 50%GPQA Diamond
- Released
- Apr 27 2026
- Context window
- 1M 66K out
- Input / 1M tokens
- $0.30
- Output / 1M tokens
- $1.80
Where to run it
2 providers compared
All 2 paid providers charge the same: $0.30 / $1.80 per 1M input / output tokens.
| Provider | Input | Output | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|
| Alibaba | $0.30 | $1.80 | 1M | 66K | 100%24h | Cheapest |
| Kilo Gateway | $0.30 | $1.80 | 1M | 66K | — | Cheapest |
Value
Price vs. performance
Qwen3.5 Plus 2026-04-20 Other Qwen Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
7 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| Vending-Bench 2Agents & computer use · Run a simulated vending business for a year (final balance) | $1 | #57of 61 | GPT-6 Astra$15,515 |
| SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions | 25.4% | #65of 79 | Gemini 4 Argon76.0% |
| WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) | 1399 | #61of 90 | Claude Opus 5.51820 |
| GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions | 84.9% | #61of 122 | Gemini 4 Argon96.4% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 8.0% | #73of 83 | GPT-6 Astra76.0% |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 36.4% | #64of 123 | Claude Sonnet 5.568.3% |
| OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 | 86.7% | #56of 120 | Gemini 4 Argon100.0% |
Specs
Details
- Model ID
qwen/qwen3.5-plus-20260420- Developer
- Qwen
- Release date
- Apr 27, 2026 ·
- Context window
- 1,000,000 tokens
- Max output
- 65,536 tokens
- API price
- $0.30 / $1.80 per 1M input / output tokens
- Providers
- 2
- Input types
- text, image, video
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.