DeepSeek V4 Flash 0731 vs Kimi K3

Price, context window & benchmark comparison

DeepSeek V4 Flash 0731

DeepSeek

$0.03 / $0.32

Input / Output · per 1M tokens

Kimi K3

Moonshot AI

$3.00 / $15.00

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4 Flash 0731 is 58.5× cheaper than Kimi K3 on a typical 3:1 input/output mix. Kimi K3 scores higher on the Artificial Analysis Intelligence Index (43.6 vs 34.3). DeepSeek V4 Flash 0731 has the larger context window (1.3M vs 1M).

	DeepSeek V4 Flash 0731	Kimi K3
Input price / 1M	$0.03	$3.00
Output price / 1M	$0.32	$15.00
Blended price (3:1)	$0.10	$6.00
Cached input / 1M	$0.016	$0.30
Context window	1.3M	1M
Max output	944K	944K
Intelligence index	34.3	43.6
Coding index	69.1	76.2
Providers	30	20
Best provider uptime (30m)	100.0%	100.0%
Vision input	No	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2026-07-31	2026-07-16
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4 Flash 0731 or Kimi K3?

DeepSeek V4 Flash 0731 is 58.5× cheaper than Kimi K3 on a typical 3:1 input/output mix.

DeepSeek V4 Flash 0731 vs Kimi K3: which has a bigger context window?

DeepSeek V4 Flash 0731: 1,310,720 tokens. Kimi K3: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $220.00, Kimi K3 ≈ $13,500.

DeepSeek V4 Flash 0731 vs Kimi K3