Released 63 days after GLM-5.2 · All Z.ai releases
GLM-5.3 is Z.ai's flagship coding and agentic model, post-trained on the GLM-5.2 base (753B MoE): 1M-token context, 128K output, text-only, reasoning always on with a low/high/max effort ladder.
GLM-5.3 runs on 9 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output |
|---|---|---|---|---|---|
| US | Zero data retention | No | $1.20 | $4.00 | |
| US | Not by default | No | $1.40 | $4.40 | |
| EU | Zero data retention | No | $1.16 | $4.65 | |
| Multi | Zero data retention | No (opt-in) | $1.40 | $4.40 | |
| US | Not by default | No | $1.25 | $4.40 | |
| US | Zero data retention | No | $1.40 | $4.40 | |
| EU | Zero data retention | No | $1.20 | $4.20 | |
| EU | Zero data retention | No | $1.75 | $4.50 | |
| US | Zero data retention | No | $1.19 | $4.40 |
GLM-5.3 runs on 2 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 7 further routes for this model are not on the board yet and are not counted above. See uptime for every provider Opper monitors.
Each route hosting GLM-5.3 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; unknown; DPA available.
Zero data retention is not on by default — a moderation hold applies. No training on customer data. US; dpf sccs; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EU; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training by default; opt-in possible. GLOBAL; SCCs; DPA available.
Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. US; SCCs; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; SCCs; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EEA; SCCs; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EU; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; SCCs; DPA available.
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Call GLM-5.3 through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "deepinfra/zai-org/GLM-5.3",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
