Claude Opus 5.5 vs Qwen3.5-Flash

Price, context window & benchmark comparison

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Claude Opus 5.5

Anthropic
$4.00 / $20.00
Input / Output · per 1M tokens
VS
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Qwen3.5-Flash

Qwen (Alibaba)
$0.065 / $0.26
Input / Output · per 1M tokens
Compare different models
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Q
Verdict: Qwen3.5-Flash is 70.3× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.
Claude Opus 5.5Qwen3.5-Flash
Input price / 1M$4.00$0.065
Output price / 1M$20.00$0.26
Blended price (3:1)$8.00$0.11
Cached input / 1M$0.20—
Context window1M1M
Max output128K66K
Intelligence index57.6—
Coding index——
Providers11—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-222026-02-25
Retirement——

Cost calculator

FAQ

Which is cheaper, Claude Opus 5.5 or Qwen3.5-Flash?

Qwen3.5-Flash is 70.3× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.

Claude Opus 5.5 vs Qwen3.5-Flash: which has a bigger context window?

Claude Opus 5.5: 1,000,000 tokens. Qwen3.5-Flash: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Opus 5.5 ≈ $18,000, Qwen3.5-Flash ≈ $260.00.

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