DeepSeek V4.1 Flash vs Fugu Ultra v2

Price, context window & benchmark comparison

DeepSeek V4.1 Flash

DeepSeek

$0.022 / $0.40

Input / Output · per 1M tokens

Fugu Ultra v2

Sakana

$5.00 / $30.00

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4.1 Flash is 96.6× cheaper than Fugu Ultra v2 on a typical 3:1 input/output mix. DeepSeek V4.1 Flash has the larger context window (1M vs 1M).

	DeepSeek V4.1 Flash	Fugu Ultra v2
Input price / 1M	$0.022	$5.00
Output price / 1M	$0.40	$30.00
Blended price (3:1)	$0.12	$11.25
Cached input / 1M	$0.004	$0.50
Context window	1M	1M
Max output	944K	128K
Intelligence index	—	—
Coding index	—	—
Providers	36	—
Best provider uptime (30m)	100.0%	—
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2026-09-10	2026-09-11
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4.1 Flash or Fugu Ultra v2?

DeepSeek V4.1 Flash is 96.6× cheaper than Fugu Ultra v2 on a typical 3:1 input/output mix.

DeepSeek V4.1 Flash vs Fugu Ultra v2: which has a bigger context window?

DeepSeek V4.1 Flash: 1,048,576 tokens. Fugu Ultra v2: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4.1 Flash ≈ $244.00, Fugu Ultra v2 ≈ $25,000.

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