{
  "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": "claude-sonnet-5",
    "name": "Claude Sonnet 5",
    "vendor": "Anthropic",
    "family": "Claude",
    "category": "llm",
    "status": "generally-available",
    "groups": [
      "frontier",
      "coding",
      "agents"
    ],
    "short_answer": "Claude Sonnet 5 is an Anthropic language model released Jun 30, 2026; Anthropic's newest language model in our dataset is Claude Haiku 5.5. Proprietary, API access only. Anthropic's Claude Sonnet generation launched Jun 30, 2026 at $2 / $10 per million tokens, a price Anthropic made standard on Aug 10, 2026. Verified against vendor sources on Oct 26, 2026.",
    "summary": "Anthropic's Claude Sonnet generation launched Jun 30, 2026 at $2 / $10 per million tokens, a price Anthropic made standard on Aug 10, 2026.",
    "release_date": "2026-06-30",
    "latest_update": null,
    "api_id": "claude-sonnet-5",
    "context_tokens": 1000000,
    "max_output_tokens": 128000,
    "input_modalities": null,
    "output_modalities": null,
    "parameters": null,
    "license": "Proprietary (API)",
    "open_weights": false,
    "pricing": {
      "currency": "USD",
      "unit": "per 1M tokens",
      "input": 2,
      "output": 10,
      "text": "$2 in / $10 out per 1M tokens"
    },
    "evidence": "Reported",
    "tested_note": null,
    "last_verified": "2026-10-26",
    "is_stale": false,
    "facts": {
      "release_date": {
        "value": "2026-06-30",
        "source_url": "https://platform.claude.com/docs/en/release-notes/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported",
        "note": "Date of the launch entry in the Claude Platform release notes (API availability)."
      },
      "api_id": {
        "value": "claude-sonnet-5",
        "source_url": "https://platform.claude.com/docs/en/release-notes/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "context_tokens": {
        "value": 1000000,
        "source_url": "https://platform.claude.com/docs/en/release-notes/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "max_output_tokens": {
        "value": 128000,
        "source_url": "https://platform.claude.com/docs/en/release-notes/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "license": {
        "value": {
          "type": "proprietary",
          "name": "Proprietary (API)",
          "openWeights": false
        },
        "source_url": "https://platform.claude.com/docs/en/about-claude/models/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "pricing": {
        "value": {
          "currency": "USD",
          "unit": "per 1M tokens",
          "input": 2,
          "output": 10
        },
        "source_url": "https://platform.claude.com/docs/en/release-notes/overview",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      }
    },
    "vendor_claims": [],
    "notes": [],
    "not_verified": [
      "Priority Tier is not available on Claude Sonnet 5 per the release notes."
    ],
    "sources": [
      {
        "label": "Claude Platform release notes",
        "url": "https://platform.claude.com/docs/en/release-notes/overview"
      },
      {
        "label": "Anthropic models overview",
        "url": "https://platform.claude.com/docs/en/about-claude/models/overview"
      }
    ],
    "url": "https://theagenticweekly.com/models/claude-sonnet-5",
    "markdown": "https://theagenticweekly.com/models/claude-sonnet-5.md",
    "api": "https://theagenticweekly.com/api/models/claude-sonnet-5"
  }
}