DeepSeek V4.1 Flash 1017 vs GPT-3.5 Turbo

Price, context window & benchmark comparison

DeepSeek V4.1 Flash 1017

DeepSeek

$0.098 / $0.29

Input / Output · per 1M tokens

GPT-3.5 Turbo

OpenAI

$0.50 / $1.50

Input / Output · per 1M tokens

Compare different models

Verdict: DeepSeek V4.1 Flash 1017 is 5.1× cheaper than GPT-3.5 Turbo on a typical 3:1 input/output mix. DeepSeek V4.1 Flash 1017 scores higher on the Artificial Analysis Intelligence Index (28.6 vs 5.5). DeepSeek V4.1 Flash 1017 has the larger context window (1M vs 16K).

	DeepSeek V4.1 Flash 1017	GPT-3.5 Turbo
Input price / 1M	$0.098	$0.50
Output price / 1M	$0.29	$1.50
Blended price (3:1)	$0.15	$0.75
Cached input / 1M	$0.0029	—
Context window	1M	16K
Max output	393K	4K
Intelligence index	28.6	5.5
Coding index	—	10.7
Providers	47	—
Best provider uptime (30m)	100.0%	—
Vision input	Yes	No
Reasoning	Yes	No
Tool calling	Yes	Yes
Released	2026-10-17	2023-05-28
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, DeepSeek V4.1 Flash 1017 or GPT-3.5 Turbo?

DeepSeek V4.1 Flash 1017 is 5.1× cheaper than GPT-3.5 Turbo on a typical 3:1 input/output mix.

DeepSeek V4.1 Flash 1017 vs GPT-3.5 Turbo: which has a bigger context window?

DeepSeek V4.1 Flash 1017: 1,048,576 tokens. GPT-3.5 Turbo: 16,385 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4.1 Flash 1017 ≈ $343.00, GPT-3.5 Turbo ≈ $1,750.

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