# Qwen3.5 Plus vs DeepSeek V4 Flash Vision Exp - AI Model Comparison

- Page: https://opencode.ai/data/compare/alibaba/qwen3-5-plus/deepseek/deepseek-v4-flash-vision-exp
- Updated: 2026-10-06T06:25:59.000Z

|  | Qwen3.5 Plus | DeepSeek V4 Flash Vision Exp |
| --- | --- | --- |
| Lab | Alibaba | DeepSeek |
| Context window | 1M | 1M |
| Max output | 66K | 384K |
| Input modalities | text, image, video | text, image |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Open weights | No | Yes |
| Release date | 2026-02-16 | 2026-08-21 |
| Input price per 1M tokens | $0.40 | $0.30 |
| Output price per 1M tokens | $2.40 | $1.20 |
| Cached input price per 1M tokens | $0.04 | $0.0060 |
| OpenCode tokens: past 2 months | 13B | 8.8T |
| Share of all tokens | 0% | 0.9% |
| Rank by tokens last week | - | #11 |
| Unique users | 19K | 337K |
| Weekly retention | 66.8% | 62.1% |

Model pages: [Qwen3.5 Plus](https://opencode.ai/data/alibaba/qwen3-5-plus.md), [DeepSeek V4 Flash Vision Exp](https://opencode.ai/data/deepseek/deepseek-v4-flash-vision-exp.md)

## Methodology

- Updates: Aggregated every hour. Days and weeks use UTC.
- Tokens: Input, output, reasoning, and cached tokens for each request.
- Users and sessions: Approximate counts of distinct users and OpenCode sessions.
- Cost: Session cost is the average cost per OpenCode session. Token prices are list prices from the OpenCode model catalog.
- Retention: The share of a model's users in one week who use it again the next week.
- Citation: Cite OpenCode Data (opencode.ai/data) with the update time shown at the top of the page.