DeepSeek V4 Flash 0731 vs Hy3 preview

Price, context window & benchmark comparison

DeepSeek V4 Flash 0731

DeepSeek

$0.03 / $0.32

Input / Output · per 1M tokens

Hy3 preview

Tencent

$0.18 / $0.60

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4 Flash 0731 is 2.8× cheaper than Hy3 preview on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 scores higher on the Artificial Analysis Intelligence Index (34.3 vs 25.3). DeepSeek V4 Flash 0731 has the larger context window (1.3M vs 262K).

	DeepSeek V4 Flash 0731	Hy3 preview
Input price / 1M	$0.03	$0.18
Output price / 1M	$0.32	$0.60
Blended price (3:1)	$0.10	$0.29
Cached input / 1M	$0.016	$0.06
Context window	1.3M	262K
Max output	944K	236K
Intelligence index	34.3	25.3
Coding index	69.1	58.8
Providers	30	—
Best provider uptime (30m)	100.0%	—
Vision input	No	No
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2026-07-31	2026-04-22
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4 Flash 0731 or Hy3 preview?

DeepSeek V4 Flash 0731 is 2.8× cheaper than Hy3 preview on a typical 3:1 input/output mix.

DeepSeek V4 Flash 0731 vs Hy3 preview: which has a bigger context window?

DeepSeek V4 Flash 0731: 1,310,720 tokens. Hy3 preview: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $220.00, Hy3 preview ≈ $660.00.

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