Qwen3.5 Plus 2026-04-20 vs Qwen3.8 Omni Flash

Price, context window & benchmark comparison

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Qwen3.5 Plus 2026-04-20

Qwen (Alibaba)
$0.30 / $1.80
Input / Output · per 1M tokens
VS
Q

Qwen3.8 Omni Flash

Qwen (Alibaba)
$0.15 / $0.47
Input / Output · per 1M tokens
Compare different models
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Verdict: Qwen3.8 Omni Flash is 2.9× cheaper than Qwen3.5 Plus 2026-04-20 on a typical 3:1 input/output mix.
Qwen3.5 Plus 2026-04-20Qwen3.8 Omni Flash
Input price / 1M$0.30$0.15
Output price / 1M$1.80$0.47
Blended price (3:1)$0.68$0.23
Cached input / 1M$0.016
Context window1M1M
Max output66K131K
Intelligence index
Coding index
Providers1
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-04-272026-09-21
Retirement

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FAQ

Which is cheaper, Qwen3.5 Plus 2026-04-20 or Qwen3.8 Omni Flash?

Qwen3.8 Omni Flash is 2.9× cheaper than Qwen3.5 Plus 2026-04-20 on a typical 3:1 input/output mix.

Qwen3.5 Plus 2026-04-20 vs Qwen3.8 Omni Flash: which has a bigger context window?

Qwen3.5 Plus 2026-04-20: 1,000,000 tokens. Qwen3.8 Omni Flash: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Qwen3.5 Plus 2026-04-20 ≈ $1,500, Qwen3.8 Omni Flash ≈ $535.00.

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