Compare/GPT-4.1 mini vs DeepSeek V3.1 (Non-reasoning)

GPT-4.1 minivsDeepSeek V3.1 (Non-reasoning)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

OpenAI

GPT-4.1 mini

Input
$0.4/M
Output
$1.6/M
Speed
83 tok/s
TTFT
0.63s
DeepSeek

DeepSeek V3.1 (Non-reasoning)

Input
$0.56/M
Output
$1.68/M
Speed
TTFT

Winner by Category

Cheaper
GPT-4.1 mini
Faster (tok/s)
GPT-4.1 mini
Lower Latency
DeepSeek V3.1 (Non-reasoning)
Benchmarks (3-9)
DeepSeek V3.1 (Non-reasoning)

Pricing Comparison

MetricGPT-4.1 miniDeepSeek V3.1 (Non-reasoning)
Input ($/M tokens)$0.4$0.56
Output ($/M tokens)$1.6$1.68
Cost for 1M input + 100K output tokens:
GPT-4.1 mini$0.56
DeepSeek V3.1 (Non-reasoning)$0.73

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-4.1 mini
83 tok/s
DeepSeek V3.1 (Non-reasoning)
Time to First Token (seconds) — lower is better
GPT-4.1 mini
0.63s
DeepSeek V3.1 (Non-reasoning)

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
22.928.1
Coding Index
18.528.4
Math Index
46.349.7
GPQA Diamond
66.4%73.5%
MMLU-Pro
78.1%83.3%
LiveCodeBench
48.3%57.7%
AIME 2025
46.3%49.7%
MATH-500
92.5%
Humanity's Last Exam
4.6%6.3%
SciCode
40.4%36.7%
IFBench
38.3%37.8%
TerminalBench
7.6%24.2%
GPT-4.1 mini3 wins
9 winsDeepSeek V3.1 (Non-reasoning)

Frequently Asked Questions

Which is cheaper, GPT-4.1 mini or DeepSeek V3.1 (Non-reasoning)?

GPT-4.1 mini is cheaper overall. Its blended price (3:1 input/output ratio) is $0.70/M tokens vs $0.84/M for DeepSeek V3.1 (Non-reasoning).

Which model performs better on benchmarks?

DeepSeek V3.1 (Non-reasoning) wins 9 out of 12 benchmarks compared to 3 for GPT-4.1 mini. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-4.1 mini generates tokens faster at 83 tok/s vs 0 tok/s. However, DeepSeek V3.1 (Non-reasoning) has lower time-to-first-token (0.00s vs 0.63s).

When should I use GPT-4.1 mini vs DeepSeek V3.1 (Non-reasoning)?

Choose based on your priorities: GPT-4.1 mini for lower cost, DeepSeek V3.1 (Non-reasoning) for stronger benchmark performance, and GPT-4.1 mini for faster generation. For latency-sensitive apps, check the TTFT comparison above.