DeepSeek V4.1 Flash vs GPT-4o

Price, context window & benchmark comparison

DeepSeek V4.1 Flash

DeepSeek

$0.022 / $0.40

Input / Output · per 1M tokens

GPT-4o

OpenAI

$2.50 / $10.00

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4.1 Flash is 37.6× cheaper than GPT-4o on a typical 3:1 input/output mix. DeepSeek V4.1 Flash has the larger context window (1M vs 128K).

	DeepSeek V4.1 Flash	GPT-4o
Input price / 1M	$0.022	$2.50
Output price / 1M	$0.40	$10.00
Blended price (3:1)	$0.12	$4.38
Cached input / 1M	$0.004	$1.25
Context window	1M	128K
Max output	944K	16K
Intelligence index	—	—
Coding index	—	—
Providers	36	—
Best provider uptime (30m)	100.0%	—
Vision input	Yes	Yes
Reasoning	Yes	No
Tool calling	Yes	Yes
Released	2026-09-10	2024-05-13
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4.1 Flash or GPT-4o?

DeepSeek V4.1 Flash is 37.6× cheaper than GPT-4o on a typical 3:1 input/output mix.

DeepSeek V4.1 Flash vs GPT-4o: which has a bigger context window?

DeepSeek V4.1 Flash: 1,048,576 tokens. GPT-4o: 128,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4.1 Flash ≈ $244.00, GPT-4o ≈ $10,000.

DeepSeek V4.1 Flash vs GPT-4o