Z.ai: GLM 5.2

Z.ai: GLM 5.2

z-ai · Released Jun 16, 2026 Professional New Best for Agents
Intelligence #9 / 579
82.0 Our Score
Speed #115 / 275
110.8 tokens / sec
Input #472 / 579
$1.40 per 1M tokens
Output #458 / 579
$4.40 per 1M tokens
Context #17 / 579
1M tokens

Analysis Summary

Z.ai's GLM 5.2 sits at the frontier of intelligence and agentic capability, with benchmark scores that place it alongside the top models in the field. Its 1M token context window, tool use, and function calling make it a technically complete package for complex, multi-step workflows. The agentic index is particularly strong, reflecting reliable performance on autonomous task execution.

For businesses, GLM 5.2 is well-suited to coding assistance, long-document analysis, and agentic pipelines where multi-step reasoning is required. The lack of vision support limits its use in multimodal workflows, but for text-based tasks it competes directly with models from Anthropic and Google. Pricing is moderate, sitting between budget and premium tiers.

Teams evaluating frontier-grade agentic models should consider GLM 5.2 seriously on capability grounds, though adoption may require additional integration work compared to more established API ecosystems. Apply a -4 point regional penalty for limited enterprise availability.

Assessed June 17, 2026

Editorial notes

GLM 5.2 from Z.ai delivers world-class reasoning, a 1M token context window, strong agentic performance, and full tool and function calling support at competitive pricing.

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence7.6Technical8.6Value7.3Content8.3
Intelligence 7.6/10
Technical 8.6/10
Content 8.3/10
Value 7.3/10

How Z.ai: GLM 5.2 compares

Z.ai: GLM 5.2 ranks #7 of 380 AI models we track for overall intelligence, #13 of 317 for coding, #5 of 292 for agentic tasks. Its 1M-token context window is larger than 97% of the models we list. At $1.40 per million input tokens it is cheaper than 18% of comparable models.

About Z.ai: 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,..

Capabilities

Tool Use Function Calling

Performance Indices

Source: Artificial Analysis

50.7 Intelligence Index
50.7 Coding Index
74.9 Agentic Index

This model was released recently. Independent benchmark evaluations are typically completed within days of release, so these figures are preliminary and are likely to be updated as testing is finalised.

Benchmark Scores

Intelligence

GPQA Diamond 89.5% Graduate-level scientific reasoning
HLE 40.1% Humanity's Last Exam
SciCode 50.5% Scientific computing

Technical

TerminalBench Hard 50.8% Agentic terminal tasks
τ²-Bench 99.1% Conversational agent benchmark

Content

IFBench 73.3% Instruction following
LCR 71.3% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Z.ai: GLM 5.2 stack up?

Compare side-by-side with other professional models.

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Model Information

OpenRouter ID z-ai/glm-5.2
Providerz-ai
Release Date June 16, 2026
Context Length1,048,576 tokens
Max Completion262,144 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $1.40 $0.001400
Output $4.40 $0.004400

Live Performance

Live endpoint metrics, refreshed every 30 minutes.

97.4%
Avg Uptime
1,172ms
Best Latency (TTFT)
48 tok/s
Best Throughput
9/9
Active Endpoints
Available via: Cloudflare, Z.AI, Friendli, Novita, DeepInfra, Parasail, AtlasCloud, StreamLake +1 more

Leaderboard Categories

Frequently asked questions about Z.ai: GLM 5.2

How much does Z.ai: GLM 5.2 cost?

Z.ai: GLM 5.2 costs $1.40 per million input tokens and $4.40 per million output tokens.

What is the context window of Z.ai: GLM 5.2?

Z.ai: GLM 5.2 has a context window of 1,048,576 tokens (1M).

Is Z.ai: GLM 5.2 good for coding?

On our coding benchmark index, Z.ai: GLM 5.2 ranks #13 of 317 models, placing it in the top quartile of the field for code generation and debugging.

What can Z.ai: GLM 5.2 do?

Z.ai: GLM 5.2 supports tool use and function calling.

Who created Z.ai: GLM 5.2?

Z.ai: GLM 5.2 is developed by Z.ai and was released on June 16, 2026.