Qwen3.5 Plus 2026-02-15
by Alibaba (Qwen) · qwen/qwen3.5-plus-02-15 · #176 cheapest of 422 paid models
Prices updated Sep 19, 2026, 6:22 PM UTC · refreshed hourly
The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In a variety of...
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Pricing
Input
$0.26
per 1M tokens
Output
$1.56
per 1M tokens
Blended (3:1)
$0.585
3 input : 1 output
Cache read
—
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for Qwen3.5 Plus 2026-02-15 (no cache-read rate published — hits billed as normal input).
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.585 | $0.0281 | — |
| 50% | $0.585 | $0.0281 | −0% |
| 90% | $0.585 | $0.0281 | −0% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates (available for OpenAI / Anthropic / Google — not flagged for this creator). Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.000598 | $0.598 |
| Document summary | 8,000 | 1,000 | $0.00364 | $3.64 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.0109 | $10.92 |
| Long-context analysis | 150,000 | 5,000 | $0.0468 | $46.80 |
Performance
Intelligence Index
—
AA composite quality
Coding Index
—
Math Index
—
Agentic Index
—
Output speed
—
median
Time to first token
—
median
Time to first answer
—
after reasoning tokens
Design Arena Elo
| Category | Elo |
|---|---|
| Website | 1,200 |
| UI components | 1,193 |
| Data viz | 1,151 |
| SVG | 1,131 |
| 3D | 1,148 |
| Game dev | 1,129 |
| Code categories | 1,182 |
| ASCII art | 1,112 |
Specs
Context window
1M
tokens
Max output
66K
tokens
Input modalities
text, image, video
Tokenizer
Qwen3