← Back to Model Hub/SIDE-BY-SIDE REVIEW
SHARE THIS:

GPT-5 Pro vs GLM 5.2

Detailed technical comparison between GPT-5 Pro (OpenAI) and GLM 5.2 (Zhipu AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-5 Pro: 5 WinsvsGLM 5.2: 1 Win
Context Leader

GLM 5.2

1,048,576 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

GLM 5.2

$0.80 / MTok
OpenAIactive

GPT-5 Pro

GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...

View GPT-5 Pro Full Specs →
Zhipu AIactive

GLM 5.2

GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...

View GLM 5.2 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-5 ProGLM 5.2
ProviderOpenAIZhipu AI
Context Window400,000 tokens1,048,576 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablebeta
API AvailableYesYes
Released Date2025-10-062026-06-16

API Pricing Comparison

Input Price per Million Tokens

GPT-5 Pro

$15.00

GLM 5.2

$0.80

Output Price per Million Tokens

GPT-5 Pro

$120.00

GLM 5.2

$2.50

💡 Cost Ratio: GLM 5.2 is 18.8x cheaper per input token than GPT-5 Pro.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Open Live Sandbox Playground →

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
93.0%vs89.5%+3.5% GPT-5 Pro
GPT-5 Pro 🏆
GLM 5.2
HumanEvalPython coding & logic synthesis
94.2%vs91.2%+3.0% GPT-5 Pro
GPT-5 Pro 🏆
GLM 5.2
MATHComplex mathematical problem solving
81.4%vs80.5%+0.9% GPT-5 Pro
GPT-5 Pro 🏆
GLM 5.2
GPQAGraduate-level expert reasoning
56.4%vs53.5%+2.9% GPT-5 Pro
GPT-5 Pro 🏆
GLM 5.2
HellaSwagCommonsense reasoning and inference
88.6%vs89.8%+1.2% GLM 5.2
GPT-5 Pro
GLM 5.2 🏆
MT-BenchMulti-turn conversation flow quality
9.5%vs9.3%+0.2% GPT-5 Pro
GPT-5 Pro 🏆
GLM 5.2

GPT-5 Pro Quirks & Gotchas

No developer gotchas reported.

GLM 5.2 Quirks & Gotchas

No developer gotchas reported.

Explore Other Popular Comparisons

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs Nano Banana 2 (Gemini 3.1 Flash Image)

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs GLM 4.7 Flash

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs Nemotron 3 Ultra

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs GPT-5.2-Codex

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs DeepSeek V3.1

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

GPT-5 Pro vs Mistral Medium 3.1

Compare context windows, live API token prices, and benchmark scores.