Compare/Qwen3 14B (Reasoning) vs GLM-5.1 (Reasoning)

Qwen3 14B (Reasoning)vsGLM-5.1 (Reasoning)

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

Alibaba

Qwen3 14B (Reasoning)

Input
$0.35/M
Output
$4.2/M
Speed
62 tok/s
TTFT
1.10s
Z AI

GLM-5.1 (Reasoning)

Input
$1.4/M
Output
$4.4/M
Speed
72 tok/s
TTFT
0.83s

Winner by Category

Cheaper
Qwen3 14B (Reasoning)
Faster (tok/s)
GLM-5.1 (Reasoning)
Lower Latency
GLM-5.1 (Reasoning)
Benchmarks (5-7)
GLM-5.1 (Reasoning)

Pricing Comparison

MetricQwen3 14B (Reasoning)GLM-5.1 (Reasoning)
Input ($/M tokens)$0.35$1.4
Output ($/M tokens)$4.2$4.4
Cost for 1M input + 100K output tokens:
Qwen3 14B (Reasoning)$0.77
GLM-5.1 (Reasoning)$1.84

Speed Comparison

Output Speed (tokens/s) — higher is better
Qwen3 14B (Reasoning)
62 tok/s
GLM-5.1 (Reasoning)
72 tok/s
Time to First Token (seconds) — lower is better
Qwen3 14B (Reasoning)
1.10s
GLM-5.1 (Reasoning)
0.83s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
10.440.2
Coding Index
13.855.8
Math Index
55.7
GPQA Diamond
60.4%86.8%
MMLU-Pro
77.4%
LiveCodeBench
52.3%
AIME 2025
55.7%
MATH-500
96.1%
Humanity's Last Exam
4.3%28.0%
SciCode
31.6%43.8%
IFBench
40.5%76.3%
TerminalBench
3.8%43.2%
Qwen3 14B (Reasoning)5 wins
7 winsGLM-5.1 (Reasoning)

Frequently Asked Questions

Which is cheaper, Qwen3 14B (Reasoning) or GLM-5.1 (Reasoning)?

Qwen3 14B (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.31/M tokens vs $2.15/M for GLM-5.1 (Reasoning).

Which model performs better on benchmarks?

GLM-5.1 (Reasoning) wins 7 out of 12 benchmarks compared to 5 for Qwen3 14B (Reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GLM-5.1 (Reasoning) generates tokens faster at 72 tok/s vs 62 tok/s. However, GLM-5.1 (Reasoning) has lower time-to-first-token (0.83s vs 1.10s).

When should I use Qwen3 14B (Reasoning) vs GLM-5.1 (Reasoning)?

Choose based on your priorities: Qwen3 14B (Reasoning) for lower cost, GLM-5.1 (Reasoning) for stronger benchmark performance, and GLM-5.1 (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.