Compare/GPT-4.1 mini vs Gemini 3.1 Flash-Lite Preview

GPT-4.1 minivsGemini 3.1 Flash-Lite Preview

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
Google

Gemini 3.1 Flash-Lite Preview

Input
$0.25/M
Output
$1.5/M
Speed
219 tok/s
TTFT
7.37s

Winner by Category

Cheaper
Gemini 3.1 Flash-Lite Preview
Faster (tok/s)
Gemini 3.1 Flash-Lite Preview
Lower Latency
GPT-4.1 mini
Benchmarks (5-7)
Gemini 3.1 Flash-Lite Preview

Pricing Comparison

MetricGPT-4.1 miniGemini 3.1 Flash-Lite Preview
Input ($/M tokens)$0.4$0.25
Output ($/M tokens)$1.6$1.5
Cost for 1M input + 100K output tokens:
GPT-4.1 mini$0.56
Gemini 3.1 Flash-Lite Preview$0.40

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-4.1 mini
83 tok/s
Gemini 3.1 Flash-Lite Preview
219 tok/s
Time to First Token (seconds) — lower is better
GPT-4.1 mini
0.63s
Gemini 3.1 Flash-Lite Preview
7.37s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
22.933.5
Coding Index
18.530.1
Math Index
46.3
GPQA Diamond
66.4%82.2%
MMLU-Pro
78.1%
LiveCodeBench
48.3%
AIME 2025
46.3%
MATH-500
92.5%
Humanity's Last Exam
4.6%16.2%
SciCode
40.4%41.9%
IFBench
38.3%77.2%
TerminalBench
7.6%24.2%
GPT-4.1 mini5 wins
7 winsGemini 3.1 Flash-Lite Preview

Frequently Asked Questions

Which is cheaper, GPT-4.1 mini or Gemini 3.1 Flash-Lite Preview?

Gemini 3.1 Flash-Lite Preview is cheaper overall. Its blended price (3:1 input/output ratio) is $0.56/M tokens vs $0.70/M for GPT-4.1 mini.

Which model performs better on benchmarks?

Gemini 3.1 Flash-Lite Preview wins 7 out of 12 benchmarks compared to 5 for GPT-4.1 mini. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Gemini 3.1 Flash-Lite Preview generates tokens faster at 219 tok/s vs 83 tok/s. GPT-4.1 mini also has lower time-to-first-token (0.63s vs 7.37s).

When should I use GPT-4.1 mini vs Gemini 3.1 Flash-Lite Preview?

Choose based on your priorities: Gemini 3.1 Flash-Lite Preview for lower cost, Gemini 3.1 Flash-Lite Preview for stronger benchmark performance, and Gemini 3.1 Flash-Lite Preview for faster generation. For latency-sensitive apps, check the TTFT comparison above.