When was GLM-5.2 released?

Z.ai released GLM-5.2 on 16 Jun 2026. It is available through the Opper gateway.

Does GLM-5.2 support zero data retention?

Yes. GLM-5.2 is available with zero data retention on DeepInfra, evroc, Inceptron, Melious, Mistral, Novita, Perplexity, Sference, TensorX through the Opper gateway. Other routes carry zero data retention with abuse monitoring; see each route's window in the data-handling section.

Where is GLM-5.2 hosted?

GLM-5.2 runs on both EU and US hosting routes through the Opper gateway. Pick the route that matches your residency requirement.

Is GLM-5.2 trained on prompts and outputs?

Training behaviour varies by route. See the per-route data-handling section for each provider's training posture.

Is a GDPR DPA available for GLM-5.2?

Yes. A GDPR Data Processing Agreement is available on at least one route serving GLM-5.2. Contact hello@opper.ai to receive it.

GLM-5.2

by Z.ai

Released 70 days after GLM 5.1 · All Z.ai releases

GLM-5.2 is Z.ai's flagship GLM-5 series model, a 744-billion-parameter mixture-of-experts system with 40 billion active parameters, built for agentic engineering and long-horizon coding, with open weights published on Hugging Face. Its standout capability is a 1M-token context window, a roughly fivefold jump over the GLM-5.1 generation's 200K, letting it reason across entire repositories, long plan-then-execute traces, and book-length inputs in a single pass. The model introduces IndexShare, a sparse-attention design that reuses one indexer across every four attention layers, which Z.ai reports cuts per-token compute by 2.9 times at full 1M context while preserving long-range recall. Selectable thinking-effort levels, High and Max, let developers trade reasoning depth against latency, and Z.ai's own benchmarks put it at 62.1 on SWE-bench Pro, up from 58.4 for GLM-5.1. Released under an MIT license, GLM-5.2 suits developers building coding agents, repository-scale tools, and reasoning-intensive applications who want frontier capability with downloadable, self-hostable weights.

Call GLM-5.2 on Opper with the OpenAI SDK. Sign up without a credit card. Get started

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Key info

Input

Output

Features

Context window

Max output

131K

Input price

$1.19 /1M

Output price

$4.17 /1M

Released

16 Jun 2026

EU residency available
US residency available
Zero data retention on pay-as-you-go
GDPR DPA available

Available routes

GLM-5.2 runs on 18 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
Alibaba Cloud	Multi		No	$1.19	$4.17	Input price
Baidu Qianfan	Multi	—Not established	—	$1.40	$4.40	$0.26
BytePlus	Multi		No	$1.40	$4.40	$0.26
DeepInfra	US		No	$0.75	$2.40	$0.14
DigitalOcean	US		No	$0.70	$2.20	$0.10
evroc	EU		No	$1.43	$5.70	Input price
GreenPT	EU		—	$1.25	$5.02	$0.31
Inceptron	EU		No	$1.01	$3.18	$0.19
Melious	EU		No	$1.14	$4.56	$0.29
Mistral	EU		No	$1.40	$4.40	$0.14
Morph	US		No	$1.10	$4.10	Input price
Nebius	Multi		No	$1.40	$4.40	Input price
Novita	US		No	$1.40	$4.40	$0.26
Perplexity	US		No	$1.40	$4.40	$0.14
Scaleway	EU		No	$2.05	$6.27	Input price
Sference	EU		No	$1.20	$4.20	$0.26
TensorX	EU		No	$1.50	$4.50	$0.38
Z.ai	Multi		No	$1.40	$4.40	$0.26

Uptime and availability

GLM-5.2 runs on 6 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.

100%effective uptime, last 30 days

Averaged across these routes on their own, a single provider reached 99.65% over the same window.

Daily status through the gateway, which serves each request from whichever route is healthy.

6 monitored providers serve GLM-5.2.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 12 further routes for this model are not on the board yet and are not counted above. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting GLM-5.2 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Alibaba Cloud — Multi-region

Zero data retention with abuse monitoring: prompts and outputs are kept for abuse monitoring only, for a window the provider does not state, and are not used for training. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention: With abuse monitoring, window not stated.
Training: No training on customer data.
Logging: Abuse monitoring
Abuse monitoring: On by default, holds flagged content
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: SCCs

Baidu Qianfan — China🇨🇳

Zero data retention posture is not established for this route. Training posture pending review. GLOBAL; unknown.

Zero data retention: Not established.
GDPR DPA: No DPA
Transfer mechanism: unknown

BytePlus — Multi-region

Zero data retention with abuse monitoring: prompts and outputs are kept for up to 180 days for abuse monitoring only, and are not used for training. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention: With abuse monitoring, 180-day window.
Training: No training on customer data.
Logging: Abuse monitoring (180-day retention)
Abuse monitoring: On by default, holds flagged content, 180 days, stored in Malaysia, a person can view samples
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: SCCs

DeepInfra — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; unknown; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
GDPR DPA: DPA available
Transfer mechanism: unknown

DigitalOcean — United States🇺🇸

Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. US; dpf sccs; DPA available.

Zero data retention: With abuse monitoring, flagged content held.
Training: No training on customer data.
Logging: None
Abuse monitoring: Always on, holds flagged content, stored in United States
Caching: Content cached for replay
Subprocessor access: No subprocessor reads content
GDPR DPA: DPA available
Transfer mechanism: dpf sccs

evroc — Sweden🇸🇪

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Subprocessor access: No subprocessor reads content
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

GreenPT — EU🇪🇺

Zero data retention posture is not established for this route. Training posture pending review. EU; DPA available.

Zero data retention: Not established.
Logging: None
Caching: Content cached for replay
Subprocessor access: Subprocessors may read content
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Inceptron — Sweden🇸🇪

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, keeps nothing
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Melious — Germany🇩🇪

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Subprocessor access: Subprocessors may read content
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Mistral — France🇫🇷

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Morph — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for up to 30 days for abuse monitoring only, and are not used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: With abuse monitoring, 30-day window.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Abuse monitoring: On by default, holds flagged content, a person can view samples
GDPR DPA: DPA available
Transfer mechanism: SCCs

Nebius — Multi-region

Content is retained: provider logging. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention: Retained: provider logging.
Training: No training on customer data.
Logging: Other
Abuse monitoring: No classifier
GDPR DPA: DPA available
Transfer mechanism: SCCs

Novita — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, keeps nothing
GDPR DPA: DPA available
Transfer mechanism: SCCs

Perplexity — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, keeps nothing
GDPR DPA: DPA available
Transfer mechanism: SCCs

Scaleway — France🇫🇷

Zero data retention with abuse monitoring: prompts and outputs are kept for up to 14 days for abuse monitoring only, and are not used for training. No training on customer data. EU; DPA available.

Zero data retention: With abuse monitoring, 14-day window.
Training: No training on customer data.
Logging: Abuse monitoring (14-day retention)
Abuse monitoring: No classifier
Caching: Content cached for replay
Subprocessor access: No subprocessor reads content
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Sference — EU🇪🇺

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EEA; SCCs; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Caching: Content cached for replay
Subprocessor access: No subprocessor reads content
GDPR DPA: DPA available
Transfer mechanism: SCCs

TensorX — European Union🇪🇺

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

Z.ai — Singapore🇸🇬

Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. GLOBAL; unknown; DPA available.

Zero data retention: With abuse monitoring, flagged content held.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, holds flagged content
Caching: Content cached for replay
Subprocessor access: Subprocessors may read content
GDPR DPA: DPA available
Transfer mechanism: unknown

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#77 of 664 LLMs

TierStrong

Intelligence Index33.7

Coding Index68.8

Reasoning & knowledge

GPQA Diamond

90%

Humanity's Last Exam

41%

Long-context reasoning

78%

Coding

SciCode

51%

Agentic & tool use

Terminal-Bench Hard

51%

τ²-Bench Telecom

99%

Math & instruction following

IFBench

73%

See full leaderboard →Benchmarks via Artificial Analysis · View on AA

Get started

Call GLM-5.2 through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

GLM-5.2 is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

1import OpenAI from "openai";
2
3const client = new OpenAI({
4  apiKey: process.env.OPPER_API_KEY,
5  baseURL: "https://api.opper.ai/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "glm-5.2",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);