GLM-5.3-Flash API model, prices & limits

Developer: Z.ai · API model

Catalog information only; CreditsPlan does not run inference with this model.

API models and prices · 1

Usage-based billing: text rates are usually per million tokens; other units and tiers are stated per entry. Compare only the same currency, unit and billing conditions. Unverified cache pricing does not mean free.

GLM-5.3-Flash

Model developer: Z.ai · API distributor: Z.ai, OpenRouter

ID kind: Fixed model

Tool calling: Unknown · Structured output: Unknown · Reasoning: Unknown

stealth/ox-alpha → Z.ai · Official model identity disclosed
Ox Alpha was officially revealed as GLM-5.3-Flash. The historical Alpha ID has no active endpoints.
Identity source · 2026-10-18T03:14:44.805Z

Last verified: 2026-10-18T03:14:44.805Z · Official source 1 · Official source 2 · Official source 3 · Official source 4

Model developer: Z.ai · Service provider: Z.ai

Model family: — · Currency: USD

Rates per million tokens
Price dimension	Current rate
Input	USD 0.15
Output	USD 0.5
Cached read	USD 0.03

Documented API context: 1,048,576 tokens

Maximum output: 131,072 tokens

缓存存储当前限时免费，结束时间及后续标准价未公布

· Last verified: Unverified

Service channels / prices and conditions 1

Confirmed token quotes use USD / 1M tokens. Other billing units remain available at the source. Each channel retains its own price verification status; catalog retrieval dates are not price verification dates.

OpenRouter Aggregator

Region: international · Usage-based API · Published channel reference rates; purchase and invocation not tested · USD

Input $0.048 / 1M tokens · Output $0.2 / 1M tokens · Cached read $0.006 · Cached write Not disclosed

z-ai/glm-5.3-flash · stealth/ox-alpha / Ox Alpha

Reference rates from the current OpenRouter model catalog. Actual billing depends on the selected provider and routing; credit purchase fees are separate. Authenticated inference was not tested.

Cache billed separately

Channel context / maximum output: 1,048,576 / 943,718 tokens

API: https://openrouter.ai/api/v1 · openai_compatible · api_key

Tools: Supported · Image input: Supported

Channel price verified · 2026-10-18T03:13:45.317Z

OpenRouter official channel catalog reference · Catalog retrieved: 2026-10-18T03:14:44.805Z

Official documentation · Data source

Input means uncached tokens; cache read and write are added separately. Context tiers require the context size of each request, not monthly totals. Estimates exclude reasoning, audio and unconfirmed charges; top-ups are account funding, not additional token consumption.

服务渠道 / 价格与条件 1

中英文报价均使用美元 / 百万 tokens。各渠道分别保留来源和价格核验状态；目录抓取时间不等于价格核验时间。

OpenRouter 聚合服务

地区：international · 按量 API · 官方渠道参考价；购买与调用未实测 · USD

输入 $0.048 / 1M tokens · 输出 $0.2 / 1M tokens · 缓存读 $0.006 · 缓存写未公布

z-ai/glm-5.3-flash · stealth/ox-alpha / Ox Alpha

OpenRouter 当前模型目录参考价，按所选上游服务商及路由条件收费，充值手续费另计；未执行鉴权调用。

缓存可能另计

此渠道上下文 / 最大输出：1,048,576 / 943,718 tokens

API: https://openrouter.ai/api/v1 · openai_compatible · api_key

工具调用: 支持 · 图像输入: 支持

渠道报价已核验 · 2026-10-18T03:13:45.317Z

OpenRouter 官方渠道目录参考 · 目录抓取时间：2026-10-18T03:14:44.805Z

官方文档 · 数据来源

输入仅指未缓存 Tokens，缓存读写分别计入；上下文阶梯使用单次请求上下文，不是月累计用量。估算不含推理、音频和未确认的附加费用；充值属于账户资金，不重复算作 Token 消费。