DeepSeek V4.1 Flash vs o4 Mini

Price, context window & benchmark comparison

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DeepSeek V4.1 Flash

DeepSeek
$0.14 / $0.42
Input / Output · per 1M tokens
VS
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o4 Mini

OpenAI
$1.10 / $4.40
Input / Output · per 1M tokens
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Verdict: DeepSeek V4.1 Flash is 9.2× cheaper than o4 Mini on a typical 3:1 input/output mix. DeepSeek V4.1 Flash has the larger context window (1M vs 200K).
DeepSeek V4.1 Flasho4 Mini
Input price / 1M$0.14$1.10
Output price / 1M$0.42$4.40
Blended price (3:1)$0.21$1.93
Cached input / 1M$0.0042$0.28
Context window1M200K
Max output131K100K
Intelligence index39.5
Coding index
Providers26
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-102025-04-16
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FAQ

Which is cheaper, DeepSeek V4.1 Flash or o4 Mini?

DeepSeek V4.1 Flash is 9.2× cheaper than o4 Mini on a typical 3:1 input/output mix.

DeepSeek V4.1 Flash vs o4 Mini: which has a bigger context window?

DeepSeek V4.1 Flash: 1,048,576 tokens. o4 Mini: 200,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: DeepSeek V4.1 Flash ≈ $490.00, o4 Mini ≈ $4,400.

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