{
  "site": "Agentic Weekly",
  "dataset": "Agentic Weekly model facts",
  "as_of": "2026-10-26",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "attribution": "Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0",
  "page": "https://theagenticweekly.com/models",
  "evidence_labels": {
    "Reported": "Read from the cited vendor page on the as-of date; not run by us.",
    "Tested": "We ran it ourselves; scope is stated in tested_note. No model is Tested yet."
  },
  "model": {
    "slug": "glm-5-3",
    "name": "GLM-5.3",
    "vendor": "Z.ai",
    "family": "GLM",
    "category": "llm",
    "status": "generally-available",
    "groups": [
      "open-weights",
      "coding",
      "agents"
    ],
    "short_answer": "GLM-5.3 is a Z.ai language model released Aug 14, 2026; Z.ai's newest language model in our dataset is GLM-5.3-Flash. Open weights (GLM-5.3 License (MIT-style plus a MaaS condition)). Z.ai's open-weights coding and agent model, released Aug 14, 2026, with weights on Hugging Face under a permissive license that adds a security-review condition for very large API businesses. Verified against vendor sources on Oct 26, 2026.",
    "summary": "Z.ai's open-weights coding and agent model, released Aug 14, 2026, with weights on Hugging Face under a permissive license that adds a security-review condition for very large API businesses.",
    "release_date": "2026-08-14",
    "latest_update": null,
    "api_id": "glm-5.3",
    "context_tokens": 1048576,
    "max_output_tokens": null,
    "input_modalities": null,
    "output_modalities": [
      "text"
    ],
    "parameters": null,
    "license": "GLM-5.3 License (MIT-style plus a MaaS condition)",
    "open_weights": true,
    "pricing": {
      "currency": "USD",
      "unit": "per 1M tokens",
      "input": 1.4,
      "output": 4.4,
      "cachedInput": 0.26,
      "text": "$1.4 in / $4.4 out per 1M tokens"
    },
    "evidence": "Reported",
    "tested_note": null,
    "last_verified": "2026-10-26",
    "is_stale": false,
    "facts": {
      "release_date": {
        "value": "2026-08-14",
        "source_url": "https://z.ai/blog/glm-5.3",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Announcement date. Z.ai said weights would follow about two weeks later; the Hugging Face repository was created Aug 25, 2026."
      },
      "api_id": {
        "value": "glm-5.3",
        "source_url": "https://docs.z.ai/guides/llm/glm-5.3",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "context_tokens": {
        "value": 1048576,
        "source_url": "https://docs.z.ai/guides/llm/glm-5.3",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "output_modalities": {
        "value": [
          "text"
        ],
        "source_url": "https://docs.z.ai/guides/llm/glm-5.3",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "license": {
        "value": {
          "type": "open-weights-restricted",
          "name": "GLM-5.3 License (MIT-style plus a MaaS condition)",
          "openWeights": true
        },
        "source_url": "https://huggingface.co/zai-org/GLM-5.3/blob/main/LICENSE",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Model-as-a-service operators above US$10B revenue in 12 months must pass a Z.ai security review."
      },
      "pricing": {
        "value": {
          "currency": "USD",
          "unit": "per 1M tokens",
          "input": 1.4,
          "output": 4.4,
          "cachedInput": 0.26
        },
        "source_url": "https://docs.z.ai/guides/overview/pricing",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      }
    },
    "vendor_claims": [
      "Vendor claim (Z.ai): \"the most capable open-weights model for coding\", based on Z.ai's own in-house benchmark. We did not verify this."
    ],
    "notes": [],
    "not_verified": [],
    "sources": [
      {
        "label": "Z.ai release blog",
        "url": "https://z.ai/blog/glm-5.3"
      },
      {
        "label": "Z.ai docs",
        "url": "https://docs.z.ai/guides/llm/glm-5.3"
      },
      {
        "label": "Z.ai pricing",
        "url": "https://docs.z.ai/guides/overview/pricing"
      },
      {
        "label": "Hugging Face",
        "url": "https://huggingface.co/zai-org/GLM-5.3"
      },
      {
        "label": "GLM-5.3 LICENSE (Hugging Face)",
        "url": "https://huggingface.co/zai-org/GLM-5.3/blob/main/LICENSE"
      }
    ],
    "url": "https://theagenticweekly.com/models/glm-5-3",
    "markdown": "https://theagenticweekly.com/models/glm-5-3.md",
    "api": "https://theagenticweekly.com/api/models/glm-5-3"
  }
}