DeepSeek V4 Flash 0731 vs Qwen3.8 Flash

Price, context window & benchmark comparison

DeepSeek V4 Flash 0731

DeepSeek

$0.03 / $0.32

Input / Output · per 1M tokens

Qwen3.8 Flash

Qwen (Alibaba)

$0.15 / $0.47

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4 Flash 0731 is 2.2× cheaper than Qwen3.8 Flash on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 has the larger context window (1.3M vs 1M).

	DeepSeek V4 Flash 0731	Qwen3.8 Flash
Input price / 1M	$0.03	$0.15
Output price / 1M	$0.32	$0.47
Blended price (3:1)	$0.10	$0.23
Cached input / 1M	$0.016	$0.016
Context window	1.3M	1M
Max output	944K	131K
Intelligence index	34.3	—
Coding index	69.1	—
Providers	30	1
Best provider uptime (30m)	100.0%	100.0%
Vision input	No	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2026-07-31	2026-08-26
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4 Flash 0731 or Qwen3.8 Flash?

DeepSeek V4 Flash 0731 is 2.2× cheaper than Qwen3.8 Flash on a typical 3:1 input/output mix.

DeepSeek V4 Flash 0731 vs Qwen3.8 Flash: which has a bigger context window?

DeepSeek V4 Flash 0731: 1,310,720 tokens. Qwen3.8 Flash: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $220.00, Qwen3.8 Flash ≈ $535.00.

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