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CostPerPrompt

Qwen3.5 Plus 2026-04-20 API Pricing

Alibaba (Qwen) · context window 1M · prices updated 2026-08-02

Input per 1M tokens
$0.3
Output per 1M tokens
$1.80
Cached input per 1M

What real workloads cost on Qwen3.5 Plus 2026-04-20

Workload Per request Per month
1K short requests/day (500 in / 150 out) $0.0004 $12.60
Support chatbot, 500 convs/day (~5K in / 1.4K out per conv) $0.004 $60.30
Document pipeline, 10K docs/day (3K in / 500 out) $0.0018 $540

Model your exact traffic in the API cost calculator — it preloads Qwen3.5 Plus 2026-04-20 with caching and batch options.

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Frequently asked questions

How much does the Qwen3.5 Plus 2026-04-20 API cost?

Qwen3.5 Plus 2026-04-20 costs $0.3 per million input tokens and $1.80 per million output tokens. In practice, a typical short request (500 tokens in, 150 out) costs about $0.0004.

What does 1,000 requests per day cost on Qwen3.5 Plus 2026-04-20?

At 500 input + 150 output tokens per request, 1,000 requests/day costs about $12.60 per month. Heavier workloads scale linearly — use our API cost calculator to model your exact traffic.

How can I reduce Qwen3.5 Plus 2026-04-20 costs?

Three levers, in order of impact: (1) route routine requests to a cheaper tier and keep Qwen3.5 Plus 2026-04-20 for hard cases; (2) enable prompt caching, which typically halves chatbot bills; (3) use the batch API for non-urgent jobs at a ~50% discount.

Is Qwen3.5 Plus 2026-04-20 worth the price?

It depends on task difficulty. Flagship models earn their premium on complex reasoning, coding, and high-stakes output; mini/flash tiers handle classification, extraction and routine chat at 10–30× lower cost. Benchmark a sample of your real workload on both before committing.