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DeepSeek-V4-Flash vs GPT-4.1 mini

Side-by-side API economics and benchmarks. Per-1M input and output rates, context window, and verified metrics.

Tale of the tape

Head-to-head specs pulled from each model profile.

Metric DeepSeek-V4-Flash GPT-4.1 mini
Input cost / 1M $0.14 $0.40
Output cost / 1M $0.28 $1.60
Context window 1,000,000 tokens 1,047,576 tokens
MMLU score

Cost verdict

Enter monthly input and output volumes to see total cost savings.

DeepSeek-V4-Flash

Input: 1M × $0.14 = $0.14
Output: 1M × $0.28 = $0.28
Total
$0.42

GPT-4.1 mini

Input: 1M × $0.40 = $0.40
Output: 1M × $1.60 = $1.60
Total
$2.00

Total cost savings

$1.58

DeepSeek-V4-Flash saves $1.58 per month vs the other model at this volume.

Model routing savings

Uses this page's verified rates. GPT-4.1 mini is the premium route (higher combined per-1M cost); DeepSeek-V4-Flash handles routine traffic.

Premium model

GPT-4.1 mini

$0.40 in · $1.60 out / 1M

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Economical model

DeepSeek-V4-Flash

$0.14 in · $0.28 out / 1M

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All premium

GPT-4.1 mini

$100.00

100% of input and output on the premium route

Routed stack

80%DeepSeek-V4-Flash

GPT-4.1 mini

$36.80

Routine slice
$16.80
Premium slice
$20.00

Monthly savings

$63.20

63.2% lower

Rates pulled from this page's model database entries (gpt-4-1-mini, deepseek-v4-flash) — same per-1M input/output figures as Tale of the tape. Production routing needs quality gates and monitoring.

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