{
  "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": "gemini-4-argon",
    "name": "Gemini 4 Argon",
    "vendor": "Google",
    "family": "Gemini",
    "category": "llm",
    "status": "generally-available",
    "groups": [
      "frontier",
      "reasoning",
      "agents",
      "coding"
    ],
    "short_answer": "Gemini 4 Argon is Google's latest language model in our dataset, released Oct 13, 2026. Proprietary, API access only. Google's newest Gemini model: a multimodal frontier model that Google claims is #1 on the Vals Index, and that sits at #1 on the LMArena Text Arena snapshot we cite. Verified against vendor sources on Oct 26, 2026.",
    "summary": "Google's newest Gemini model: a multimodal frontier model that Google claims is #1 on the Vals Index, and that sits at #1 on the LMArena Text Arena snapshot we cite.",
    "release_date": "2026-10-13",
    "latest_update": null,
    "api_id": "gemini-4-argon",
    "context_tokens": 1048576,
    "max_output_tokens": 65536,
    "input_modalities": [
      "text",
      "image",
      "video",
      "audio",
      "pdf"
    ],
    "output_modalities": [
      "text"
    ],
    "parameters": null,
    "license": "Proprietary (API)",
    "open_weights": false,
    "pricing": {
      "currency": "USD",
      "unit": "per 1M tokens",
      "input": 2,
      "output": 10,
      "cachedInput": 0.1,
      "later": {
        "effective": "2026-12-01",
        "input": 4,
        "output": 20,
        "cachedInput": 0.2
      },
      "text": "$2 in / $10 out per 1M tokens; from Dec 1, 2026: $4 / $20"
    },
    "evidence": "Reported",
    "tested_note": null,
    "last_verified": "2026-10-26",
    "is_stale": false,
    "facts": {
      "release_date": {
        "value": "2026-10-13",
        "source_url": "https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "General availability date: Google's Gemini API changelog and launch post are dated Oct 13, 2026. Google announced Argon on Sep 30, 2026 but limited it to trusted cyber defenders (Fairwind Program) until the Oct 13 rollout, so some trackers list Sep 30."
      },
      "api_id": {
        "value": "gemini-4-argon",
        "source_url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "context_tokens": {
        "value": 1048576,
        "source_url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Unified input + output token limit."
      },
      "max_output_tokens": {
        "value": 65536,
        "source_url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Default; Google lists up to 1,048,576 with long decode."
      },
      "input_modalities": {
        "value": [
          "text",
          "image",
          "video",
          "audio",
          "pdf"
        ],
        "source_url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "output_modalities": {
        "value": [
          "text"
        ],
        "source_url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "license": {
        "value": {
          "type": "proprietary",
          "name": "Proprietary (API)",
          "openWeights": false
        },
        "source_url": "https://ai.google.dev/gemini-api/docs/pricing",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "pricing": {
        "value": {
          "currency": "USD",
          "unit": "per 1M tokens",
          "input": 2,
          "output": 10,
          "cachedInput": 0.1,
          "later": {
            "effective": "2026-12-01",
            "input": 4,
            "output": 20,
            "cachedInput": 0.2
          }
        },
        "source_url": "https://ai.google.dev/gemini-api/docs/pricing",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Launch pricing runs through Nov 30, 2026, then $4 / $20. Not on the free tier."
      }
    },
    "vendor_claims": [
      "Vendor claim (Google): #1 on the Vals Index. We did not verify this.",
      "Neutral signal: #1 on LMArena Text Arena in the Oct 8, 2026 snapshot (score marked preliminary)."
    ],
    "notes": [],
    "not_verified": [],
    "sources": [
      {
        "label": "Gemini API model page",
        "url": "https://ai.google.dev/gemini-api/docs/models/gemini-4-argon"
      },
      {
        "label": "Gemini API pricing",
        "url": "https://ai.google.dev/gemini-api/docs/pricing"
      },
      {
        "label": "Gemini API changelog",
        "url": "https://ai.google.dev/gemini-api/docs/changelog"
      },
      {
        "label": "Google launch blog",
        "url": "https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/"
      },
      {
        "label": "LMArena Text Arena",
        "url": "https://arena.ai/leaderboard/text"
      },
      {
        "label": "Google announcement (Sep 30, limited access)",
        "url": "https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-4-argon/"
      }
    ],
    "url": "https://theagenticweekly.com/models/gemini-4-argon",
    "markdown": "https://theagenticweekly.com/models/gemini-4-argon.md",
    "api": "https://theagenticweekly.com/api/models/gemini-4-argon"
  }
}