# Z.ai — GLM-5.3-Flash > AI lab announcements, news reports and podcasts. forck.live follows what companies announce about their own products. Press may corroborate an official story; it never leads and never appears as an item of its own. A missing date stays missing. A title is the publisher's words — where a company does not publish in English, an English rendering is listed separately as `Title in English` and named as this site's translation, never as theirs. This file is the record of one model version: what the model registry states about it, Z.ai's launch post, the first-party posts this record holds about it, the outlets that reported on those posts, and other companies' announcements that it runs on their platforms. A model ranks nothing here and nothing is composed: each date names whose it is, and a field nothing states is `not stated` rather than missing. - This model's page: https://forck.live/models/glm-5-3-flash - Z.ai's page: https://forck.live/company/z-ai - Every model: https://forck.live/models - Catalogue: https://forck.live/llms.txt ## Model - Name: GLM-5.3-Flash - Company: Z.ai (z.ai) - Launch post: Introducing GLM-Legal — https://forck.live/items/19959-introducing-glm-legal - Announced: 2026-10-12T16:10:47+00:00 - Launch source: https://x.com/Zai_org/status/2109678174468534511 - Launch chosen by: the earliest dated release post naming it - Released (per models.dev): 2026-08-26 - Listed (per OpenRouter): 2026-08-26 - Open weights: yes - Posts about it: 1 - Outlets named under its posts: 2 - Variant of: GLM-5.3 — https://forck.live/models/glm-5-3 - OpenRouter id: z-ai/glm-5.3-flash — https://openrouter.ai/z-ai/glm-5.3-flash ## Posts about it _Z.ai's own posts whose title names GLM-5.3-Flash, and its launch post, in the record's order: dated newest first, undated last. The record reads the newest 50 first-party posts mentioning the model, every company's together, so a model mentioned more often than that lists the newest of them._ Every entry is one first-party announcement, and carries the same eight fields in this order before any others: Company · Announced · Category · Coverage · Announcement · Group · Source · Record `Source` is the company's own page the announcement was traced to and `Record` is this site's page for it. Both are safe to cite. `Coverage` is a number of outlets, or `not counted` — which means this record reached no count of its own, never that nobody wrote about it. `Category` is this tracker's own analysis, and is authoritative wherever it is stated. `not stated` means either that nothing has analysed the post yet or that the analysis placed it outside this taxonomy; neither is a verdict about the announcement. `Announcement` is whether the post is news of something the company did, rather than a how-to, a customer story, a changelog listing or a staffing note. `Group` is which of this record's groups the entry falls in, carried on the entry itself so it holds where the groups are headings and where they are not. One of: `models`, `covered`, `announcements`, `routine`. Anything after `Record` is held detail that only some announcements carry. ### Z.ai — Introducing GLM-Legal - Company: Z.ai (z.ai) - Announced: 2026-10-12T16:10:47+00:00 - Category: new-model - Coverage: not counted - Announcement: yes - Group: models - Source: https://x.com/Zai_org/status/2109678174468534511 - Record: https://forck.live/items/19959-introducing-glm-legal Z.ai introduced GLM-Legal, a model built on GLM-5.3-Flash that it says matches frontier models on mainstream legal benchmarks. The model is designed for real legal workflows including contract review, evidence analysis, and compliance. Z.ai is offering API access by application and also provides a product called AutoClaw. ## Who reported on it _Outlets this record can name and link, under the first-party post each one covered. Their number is `Outlets named under its posts` above, and the rows are not totalled again. A post's own `Coverage` can be higher: it counts outlets the signal saw that this record cannot name and link._ ### On: Introducing GLM-Legal Record: https://forck.live/items/19959-introducing-glm-legal - MarkTechPost — Z.ai GLM-Legal Beats Claude Fable 5 and Kimi K3 on Harvey LAB (2026-10-13T08:19:54+00:00): https://www.marktechpost.com/2026/10/13/zai-glm-legal-harvey-lab-legal-ai-model/ - Unite.AI — Z.ai Unveils GLM-Legal, an Agentic Model for Legal Workflows (2026-10-12T16:37:10+00:00): https://www.unite.ai/z-ai-unveils-glm-legal-an-agentic-model-for-legal-workflows/ ## Where it runs _Other companies' own announcements naming GLM-5.3-Flash and Z.ai — each is that company's post, not Z.ai's._ ### Perplexity — GLM 5.3 Flash - Company: Perplexity (perplexity.ai) - Announced: 2026-09-02T22:22:29+00:00 - Category: api-release - Coverage: not counted - Announcement: yes - Group: announcements - Source: https://docs.perplexity.ai/docs/resources/changelog#september-2026 - Record: https://forck.live/items/8066-glm-5-3-flash - Subject: Sonar Perplexity added the model perplexity/glm-5.3-flash to its Agent API and Router API, priced at $0.15 per million uncached-input tokens, $0.03 per million cached-input tokens, and $0.50 per million output tokens. --- Record: https://forck.live/models/glm-5-3-flash Catalogue: https://forck.live/llms.txt Current issue: https://forck.live/feed.md