Qwen: Qwen3.5 Plus 2026-04-20 vs Qwen: Qwen3.5 Plus 2026-02-15
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| Qwen: Qwen3.5 Plus 2026-04-20 | Qwen: Qwen3.5 Plus 2026-02-15 | |
|---|---|---|
| Vendor | qwen | qwen |
| Quality Score | 100 | 100 |
| Input Price | $0.30/M | $0.26/M |
| Output Price | $1.80/M | $1.56/M |
| Context Window | 1,000,000 | 1,000,000 |
| Max Output | 65,536 | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Qwen3.5 Plus 2026-02-15 costs $0.65 and Qwen3.5 Plus 2026-04-20 costs $0.75, so Qwen3.5 Plus 2026-02-15 is slightly cheaper for the same work.
Both read up to 1,000,000 tokens at once, roughly 1,500 pages of text.
Across the 1 tasks where they differ, Qwen3.5 Plus 2026-02-15 on 1 (Bulk Data Labeling).
Qwen3.5 Plus 2026-04-20 was released in April 2026 and Qwen3.5 Plus 2026-02-15 in February 2026.
Pick Qwen3.5 Plus 2026-02-15 if you need lower cost.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | Qwen: Qwen3.5 Plus 2026-04-20 | Qwen: Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Bulk Data Labeling | 129 | 129 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →