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Favicon for z-ai

Z.ai: GLM 5.2

z-ai/glm-5.2

Model weights
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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, and complex multi-step automation.

Reasoning efforts high and xhigh are supported; xhigh maps to max reasoning. It is particularly strong at coding and tool use across long-running tasks, able to maintain engineering context and follow standards consistently through a full development workflow, from requirements to multi-platform deployment, in a single task.

Modalities

In / Out Price

$0.50 / $3.15per 1M

Context

1M

Released

Jun 16, 2026

Compare

About Z.ai: GLM 5.2

OpenRouter makes Z.ai: GLM 5.2 available through a unified, OpenAI-compatible API using the model ID z-ai/glm-5.2. Requests can be routed across 26 providers, including Sail Research, Ambient, Decart, DigitalOcean, StreamLake, NovitaAI, GMICloud, DeepInfra and 18 more, with automatic failover when an endpoint is unavailable.

Z.ai: GLM 5.2 accepts text and returns text. It has a 1,048,576-token context window and a maximum output of 131,072 tokens.

On OpenRouter, Z.ai: GLM 5.2 costs $0.50/M input tokens and $3.15/M output tokens, with separate rates for Cache Read at $0.115/M tokens. Effective pricing can be lower when prompt caching applies. It was released on June 16, 2026.

More models from Z.ai

  • GLM 5.3
  • GLM 5.1
  • GLM 5V Turbo

Frequently asked questions

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, and complex multi-step automation. Reasoning efforts high and xhigh are supported; xhigh maps to max reasoning.

GLM 5.2 costs $0.50/M input tokens and $3.15/M output tokens, with separate rates for Cache Read at $0.115/M tokens.

GLM 5.2 has a 1,048,576 token context window. It supports up to 131,072 completion tokens.

Yes. GLM 5.2 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

GLM 5.2 is served by 26 providers on OpenRouter: Sail Research, Ambient, Decart, DigitalOcean, StreamLake, NovitaAI, GMICloud, DeepInfra and 18 more. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

GLM 5.2 was released on June 16, 2026.

ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQ

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), or Exacto (highest tool-calling accuracy).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

$0.50$3.15$0.1151.21s19 tps
99.53%
43% off
$1.20$0.684$4.00$2.28$0.20$0.1141.54s54 tps
99.51%
$0.70$2.20$0.1050.78s99 tps
99.28%
48% off
$1.40$0.7336$4.40$2.306$0.26$0.13621.62s45 tps
99.85%
47% off
$1.40$0.7406$4.40$2.328$0.26$0.13752.57s37 tps
99.93%
47% off
$1.40$0.742$4.40$2.332$0.26$0.13781.59s42 tps
99.42%
$0.75$2.40$0.141.25s51 tps
98.86%
$0.76$2.42$0.140.57s138 tps
99.80%
45% off
$1.40$0.77$4.40$2.42$0.26$0.1431.68s41 tps
--
$0.966$3.036$0.19321.33s47 tps
99.50%
$1.10$4.10$0.221.76s34 tps
98.33%
15% off
$1.40$1.19$4.40$3.74$0.26$0.2212.01s40 tps
99.96%
$1.26$3.00$0.222.56s27 tps
99.87%
$1.26$3.96$0.2343.49s46 tps
98.20%
10% off
$1.40$1.26$4.40$3.96$0.26$0.2341.82s51 tps
97.71%
$1.40$4.40$0.265.85s22 tps
99.07%
$1.40$4.40$0.141.25s48 tps
97.84%
$1.40$4.40$0.264.62s48 tps
98.94%
$1.40$4.40$0.260.57s98 tps
99.80%
$1.40$4.40$0.260.88s121 tps
99.87%
$1.40$4.40$0.261.64s45 tps
98.98%
$1.40$4.40$0.260.85s49 tps
94.13%
$1.40$4.40$0.261.21s50 tps
99.89%
$1.40$4.40$0.260.83s54 tps
99.81%
$1.40$4.40$0.141.76s52 tps
99.72%
$2.10$6.60$0.210.83s137 tps
98.87%
$2.10$6.60$0.211.15s81 tps
99.88%
$2.10$6.60$0.211.69s66 tps
99.72%
$2.31$7.26$0.4621.67s35 tps
99.91%
$0.75$2.90$0.170.80s97 tps
96.10%
$0.60$2.00$0.153.07s25 tps
86.29%

Throughput

138tok/s

P50, best across providers

Latency

0.57s

P50, best provider

AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Wafer Fast
92.2%73.3%
Venice
84.8%77.9%
Baidu Qianfan
85.9%76.8%
Z.ai
86.0%75.9%
Ambient
84.0%77.8%
Wafer
--75.3%
+26 more providers
Uptime (3d)

100.00%

Availability (3d)

99.81%

Availability over the last 3 days

Last 72 hours
Availability 99.81%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.70%
Without Routing
87.84%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

1.
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