Price Per TokenPrice Per Token
OpenAI
OpenAI
vs
Z-ai

GPT-5 Mini vs GLM 4.5

A detailed comparison of pricing, benchmarks, and capabilities

OpenClaw

Best LLMs for OpenClaw Vote for which model works best with OpenClaw

101 out of our 303 tracked models have had a price change in February.

Get our weekly newsletter on pricing changes, new releases, and tools.

Key Takeaways

GPT-5 Mini wins:

  • Cheaper input tokens
  • Larger context window
  • Faster response time
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
  • Supports vision

GLM 4.5 wins:

  • Cheaper output tokens
Price Advantage
GPT-5 Mini
Benchmark Advantage
GPT-5 Mini
Context Window
GPT-5 Mini
Speed
GPT-5 Mini

Pricing Comparison

Price Comparison

MetricGPT-5 MiniGLM 4.5Winner
Input (per 1M tokens)$0.25$0.35 GPT-5 Mini
Output (per 1M tokens)$2.00$1.55 GLM 4.5
Cache Read (per 1M)$25000.00$175000.00 GPT-5 Mini
Using a 3:1 input/output ratio, GLM 4.5 is 5% cheaper overall.

GPT-5 Mini Providers

OpenAI $0.25 (Cheapest)
Azure $0.25 (Cheapest)

GLM 4.5 Providers

Chutes $0.35 (Cheapest)
WandB $0.55
Z.AI $0.60
Nebius $0.60
Novita $0.60

Benchmark Comparison

6
Benchmarks Compared
0
GPT-5 Mini Wins
0
GLM 4.5 Wins

Benchmark Scores

BenchmarkGPT-5 MiniGLM 4.5Winner
Intelligence Index
Overall intelligence score
41.0--
Coding Index
Code generation & understanding
35.3--
Math Index
Mathematical reasoning
90.7--
MMLU Pro
Academic knowledge
83.7--
GPQA
Graduate-level science
82.8--
LiveCodeBench
Competitive programming
83.8--
GPT-5 Mini significantly outperforms in coding benchmarks.

Cost vs Quality

X-axis:
Y-axis:
Loading chart...
GPT-5 Mini
Other models

Context & Performance

Context Window

GPT-5 Mini
400,000
tokens
Max output: 128,000 tokens
GLM 4.5
131,072
tokens
Max output: 65,536 tokens
GPT-5 Mini has a 67% larger context window.

Speed Performance

MetricGPT-5 MiniGLM 4.5Winner
Tokens/second67.8 tok/sN/A
Time to First Token113.70sN/A

Capabilities

Feature Comparison

FeatureGPT-5 MiniGLM 4.5
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGPT-5 MiniGLM 4.5
LicenseProprietaryProprietary
AuthorOpenAIZ-ai
ReleasedAug 2025Jul 2025

GPT-5 Mini Modalities

Input
textimagefile
Output
text

GLM 4.5 Modalities

Input
text
Output
text

Related Comparisons

Compare GPT-5 Mini with:

Compare GLM 4.5 with:

Frequently Asked Questions

GPT-5 Mini has cheaper input pricing at $0.25/M tokens. GLM 4.5 has cheaper output pricing at $1.55/M tokens.
GPT-5 Mini scores higher on coding benchmarks with a score of 35.3, compared to GLM 4.5's score of N/A.
GPT-5 Mini has a 400,000 token context window, while GLM 4.5 has a 131,072 token context window.
GPT-5 Mini supports vision. GLM 4.5 does not support vision.