Compare/MiniCPM5-1B (Reasoning) vs GPT-5.5 (low)

MiniCPM5-1B (Reasoning)vsGPT-5.5 (low)

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

OpenBMB

MiniCPM5-1B (Reasoning)

Input
$0/M
Output
$0/M
Speed
TTFT
OpenAI

GPT-5.5 (low)

Input
$5/M
Output
$30/M
Speed
51 tok/s
TTFT
2.02s

Winner by Category

Cheaper
MiniCPM5-1B (Reasoning)
Faster (tok/s)
GPT-5.5 (low)
Lower Latency
MiniCPM5-1B (Reasoning)
Benchmarks (0-7)
GPT-5.5 (low)

Pricing Comparison

MetricMiniCPM5-1B (Reasoning)GPT-5.5 (low)
Input ($/M tokens)$0$5
Output ($/M tokens)$0$30
Cost for 1M input + 100K output tokens:
MiniCPM5-1B (Reasoning)$0.00
GPT-5.5 (low)$8.00

Speed Comparison

Output Speed (tokens/s) — higher is better
MiniCPM5-1B (Reasoning)
GPT-5.5 (low)
51 tok/s
Time to First Token (seconds) — lower is better
MiniCPM5-1B (Reasoning)
GPT-5.5 (low)
2.02s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
18.250.8
Coding Index
1.552.1
Math Index
GPQA Diamond
27.8%91.0%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
6.5%31.0%
SciCode
4.4%51.6%
IFBench
49.3%64.4%
TerminalBench
0.0%52.3%
MiniCPM5-1B (Reasoning)0 wins
7 winsGPT-5.5 (low)

Frequently Asked Questions

Which is cheaper, MiniCPM5-1B (Reasoning) or GPT-5.5 (low)?

MiniCPM5-1B (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $11.25/M for GPT-5.5 (low).

Which model performs better on benchmarks?

GPT-5.5 (low) wins 7 out of 12 benchmarks compared to 0 for MiniCPM5-1B (Reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5.5 (low) generates tokens faster at 51 tok/s vs 0 tok/s. MiniCPM5-1B (Reasoning) also has lower time-to-first-token (0.00s vs 2.02s).

When should I use MiniCPM5-1B (Reasoning) vs GPT-5.5 (low)?

Choose based on your priorities: MiniCPM5-1B (Reasoning) for lower cost, GPT-5.5 (low) for stronger benchmark performance, and GPT-5.5 (low) for faster generation. For latency-sensitive apps, check the TTFT comparison above.