Compare/GLM-5 (Reasoning) vs Gemini 3 Flash Preview (Reasoning)

GLM-5 (Reasoning)vsGemini 3 Flash Preview (Reasoning)

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

Z AI

GLM-5 (Reasoning)

Input
$1/M
Output
$3.2/M
Speed
60 tok/s
TTFT
0.96s
Google

Gemini 3 Flash Preview (Reasoning)

Input
$0.5/M
Output
$3/M
Speed
180 tok/s
TTFT
6.33s

Winner by Category

Cheaper
Gemini 3 Flash Preview (Reasoning)
Faster (tok/s)
Gemini 3 Flash Preview (Reasoning)
Lower Latency
GLM-5 (Reasoning)
Benchmarks (3-8)
Gemini 3 Flash Preview (Reasoning)

Pricing Comparison

MetricGLM-5 (Reasoning)Gemini 3 Flash Preview (Reasoning)
Input ($/M tokens)$1$0.5
Output ($/M tokens)$3.2$3
Cost for 1M input + 100K output tokens:
GLM-5 (Reasoning)$1.32
Gemini 3 Flash Preview (Reasoning)$0.80

Speed Comparison

Output Speed (tokens/s) — higher is better
GLM-5 (Reasoning)
60 tok/s
Gemini 3 Flash Preview (Reasoning)
180 tok/s
Time to First Token (seconds) — lower is better
GLM-5 (Reasoning)
0.96s
Gemini 3 Flash Preview (Reasoning)
6.33s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
49.846.4
Coding Index
44.242.6
Math Index
97.0
GPQA Diamond
82.0%89.8%
MMLU-Pro
89.0%
LiveCodeBench
90.8%
AIME 2025
97.0%
MATH-500
Humanity's Last Exam
27.2%34.7%
SciCode
46.2%50.6%
IFBench
72.3%78.0%
TerminalBench
43.2%38.6%
GLM-5 (Reasoning)3 wins
8 winsGemini 3 Flash Preview (Reasoning)

Frequently Asked Questions

Which is cheaper, GLM-5 (Reasoning) or Gemini 3 Flash Preview (Reasoning)?

Gemini 3 Flash Preview (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.13/M tokens vs $1.55/M for GLM-5 (Reasoning).

Which model performs better on benchmarks?

Gemini 3 Flash Preview (Reasoning) wins 8 out of 12 benchmarks compared to 3 for GLM-5 (Reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Gemini 3 Flash Preview (Reasoning) generates tokens faster at 180 tok/s vs 60 tok/s. GLM-5 (Reasoning) also has lower time-to-first-token (0.96s vs 6.33s).

When should I use GLM-5 (Reasoning) vs Gemini 3 Flash Preview (Reasoning)?

Choose based on your priorities: Gemini 3 Flash Preview (Reasoning) for lower cost, Gemini 3 Flash Preview (Reasoning) for stronger benchmark performance, and Gemini 3 Flash Preview (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.