{
 "dataset": "llm-free-tier-observed",
 "version": "2026-10-03",
 "publisher": "株式会社インフラワン (InfraOne Inc.)",
 "url": "https://infraone.jp/data/llm-free-tier/",
 "license": "CC BY 4.0",
 "window_days": 60,
 "note": "当社の観測。当社の業務の呼び出し (無料枠・1事業者1鍵) の記録から集計し、追加の問い合わせはしていない。失敗の件数には、上限に当たっている間の当社の再確認も含む (件数は当社の呼び出し方に左右される)。2026-10-01 以前は、上限に当たると当社の側で数時間〜24時間止めていたので、その間の観測は無い。",
 "note_en": "Observed by InfraOne from its own production calls (free tiers, one key per provider); no extra requests were made. Failure counts include our own re-checks while limited, so they depend on our call pattern. Until 2026-10-01 our side paused a provider for hours after a limit, so there are no observations during those pauses.",
 "method": {
  "sources": [
   "application error log (status and response body; bodies truncated to 180 chars before 2026-10-02)",
   "scrubbed full response bodies (from 2026-10-02)",
   "successful call log (timestamp, provider, model)"
  ],
  "classification": "response body patterns (classify() in engine/freetier.py)",
  "reset_check": "for each documented reset after a daily-limit error, whether our first call within 6 hours after the reset succeeded",
  "replicate": "call the provider's free tier from one project/account, log every non-2xx response body and every success timestamp with the model name, and compute the same aggregates over the same window",
  "excluded_providers": {
   "mistral": "商用規約 6.1 が性能の情報を Mistral の機密情報に含めるため公開しない (https://legal.mistral.ai/terms/commercial-terms-of-service)",
   "nvidia": "試用の規約で評価専用のため公開しない",
   "claude": "CLI の契約枠 (無料枠の API ではない)",
   "codex": "CLI の契約枠 (無料枠の API ではない)",
   "cerebras": "無料枠なし",
   "chatgpt": "前払いの残高 0 で無効"
  }
 },
 "providers": {
  "cloudflare": {
   "name": "Cloudflare Workers AI (無料枠)",
   "name_en": "Cloudflare Workers AI (free allocation)",
   "documented": [
    {
     "claim": "1日 10,000 ニューロンまで無料",
     "claim_en": "10,000 Neurons per day at no charge",
     "url": "https://developers.cloudflare.com/workers-ai/platform/pricing/",
     "checked": "2026-10-02",
     "page_updated": "2026-10-01"
    },
    {
     "claim": "上限は毎日 00:00 UTC に戻る",
     "claim_en": "All limits reset daily at 00:00 UTC",
     "url": "https://developers.cloudflare.com/workers-ai/platform/pricing/",
     "checked": "2026-10-02",
     "page_updated": "2026-10-01"
    }
   ],
   "reset": {
    "kind": "utc_midnight"
   },
   "observed_notes": [],
   "observed": {
    "period": [
     "2026-09-22",
     "2026-10-03"
    ],
    "successful_calls": 497,
    "failed_calls": 4025,
    "failure_rate": 0.89,
    "models_succeeded": {
     "@cf/meta/llama-3.3-70b-instruct-fp8-fast": 259,
     "@cf/openai/gpt-oss-120b": 124,
     "@cf/mistralai/mistral-small-3.1-24b-instruct": 91,
     "@cf/qwen/qwen3.8-27b": 23
    },
    "kinds": {
     "quota_day": {
      "label": "1日の無料の割り当てを使い切った",
      "count": 4022,
      "days_with_event": 11,
      "by_hour_utc": [
       211,
       81,
       126,
       71,
       62,
       77,
       76,
       62,
       86,
       58,
       73,
       87,
       220,
       241,
       206,
       218,
       265,
       269,
       287,
       278,
       241,
       259,
       252,
       216
      ],
      "body_templates": [
       {
        "text": "{\"errors\":[{\"message\":\"AiError: AiError: you have used up your daily free allocation of 10,000 neuro",
        "n": 4022
       }
      ],
      "details": {},
      "reset_check": {
       "resets": 11,
       "first_call_after_reset_succeeded": 4,
       "first_call_after_reset_still_limited": 6,
       "no_call_within_6h_or_other_error": 1,
       "minutes_to_first_success_after_reset": {
        "n": 6,
        "median": 28.6,
        "max": 82.9,
        "values": [
         29,
         9,
         3,
         13,
         40,
         83
        ],
        "caveat": "戻り時刻の15分以内に当社の呼び出しがあった日だけ。当社の呼び出しの間隔 (数分) を含む"
       }
      }
     },
     "other": {
      "label": "その他",
      "count": 1,
      "days_with_event": 1,
      "by_hour_utc": [
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       1,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0
      ],
      "body_templates": [
       {
        "text": "error code: 502",
        "n": 1
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 1,
       "median": 9.8,
       "p90": 9.8,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "timeout": {
      "label": "応答の時間切れ",
      "count": 2,
      "days_with_event": 1,
      "by_hour_utc": [
       0,
       2,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0
      ],
      "body_templates": [
       {
        "text": "The read operation timed out",
        "n": 2
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 2,
       "median": 0.0,
       "p90": 0.0,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     }
    }
   }
  },
  "gemini": {
   "name": "Google Gemini API (無料枠)",
   "name_en": "Google Gemini API (free tier)",
   "documented": [
    {
     "claim": "上限はプロジェクトごと (API キーごとではない)",
     "claim_en": "Rate limits are applied per project, not per API key",
     "url": "https://ai.google.dev/gemini-api/docs/rate-limits",
     "checked": "2026-10-02",
     "page_updated": "2026-09-02"
    },
    {
     "claim": "1日の回数 (RPD) は太平洋時間の0時に戻る",
     "claim_en": "Requests per day (RPD) quotas reset at midnight Pacific time",
     "url": "https://ai.google.dev/gemini-api/docs/rate-limits",
     "checked": "2026-10-02",
     "page_updated": "2026-09-02"
    },
    {
     "claim": "無料枠の数値はページに載っておらず、AI Studio で確かめるよう案内している",
     "claim_en": "The page does not list free-tier numbers; it points to AI Studio for active limits",
     "url": "https://ai.google.dev/gemini-api/docs/rate-limits",
     "checked": "2026-10-02",
     "page_updated": "2026-09-02"
    }
   ],
   "reset": {
    "kind": "pacific_midnight"
   },
   "observed_notes": [
    {
     "claim": "日の上限の 429 の本文が示した上限名は GenerateRequestsPerDayPerProjectPerModel-FreeTier、値は 20 (1プロジェクト・1モデルあたり1日20回)。文書のページには無料枠の数値が無い",
     "claim_en": "The daily-limit 429 body named the quota GenerateRequestsPerDayPerProjectPerModel-FreeTier with value 20 (20 requests per day per project per model). The documentation page lists no free-tier numbers",
     "observed": "2026-10-02",
     "n": 1,
     "note": "2026-10-02 からは本文を全文で残すので、以後の観測で件数が増える"
    }
   ],
   "observed": {
    "period": [
     "2026-08-22",
     "2026-10-03"
    ],
    "successful_calls": 1597,
    "failed_calls": 2994,
    "failure_rate": 0.652,
    "models_succeeded": {
     "gemini-3.7-flash": 950,
     "gemini-3.5-flash": 647
    },
    "kinds": {
     "overloaded": {
      "label": "事業者の混雑 (503)",
      "count": 365,
      "days_with_event": 41,
      "by_hour_utc": [
       15,
       12,
       6,
       11,
       7,
       6,
       13,
       20,
       23,
       23,
       16,
       20,
       23,
       28,
       13,
       24,
       5,
       22,
       27,
       14,
       9,
       12,
       10,
       6
      ],
      "body_templates": [
       {
        "text": "{ \"error\": { \"code\": 503, \"message\": \"This model is currently experiencing high demand. Spikes in de",
        "n": 364
       },
       {
        "text": "{ \"error\": { \"code\": 503, \"message\": \"The service is currently unavailable.\", \"status\": \"UNAVAILABLE",
        "n": 1
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 365,
       "median": 1.5,
       "p90": 9.1,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "timeout": {
      "label": "応答の時間切れ",
      "count": 94,
      "days_with_event": 17,
      "by_hour_utc": [
       2,
       0,
       1,
       0,
       2,
       4,
       7,
       8,
       0,
       6,
       1,
       8,
       9,
       0,
       4,
       9,
       8,
       5,
       14,
       2,
       1,
       2,
       1,
       0
      ],
      "body_templates": [
       {
        "text": "The read operation timed out",
        "n": 94
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 94,
       "median": 3.5,
       "p90": 12.0,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "other": {
      "label": "その他",
      "count": 7,
      "days_with_event": 2,
      "by_hour_utc": [
       1,
       2,
       0,
       0,
       0,
       0,
       0,
       1,
       0,
       1,
       0,
       0,
       1,
       0,
       0,
       1,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0
      ],
      "body_templates": [
       {
        "text": "<urlopen error EOF occurred in violation of protocol (_ssl.c:2406)>",
        "n": 6
       },
       {
        "text": "{ \"error\": { \"code\": 500, \"message\": \"Internal error encountered.\", \"status\": \"INTERNAL\" } }",
        "n": 1
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 7,
       "median": 0.7,
       "p90": 1.9,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "quota_day": {
      "label": "上限 (本文の冒頭だけでは分・日の区別が付かない。回復までの時間で日の上限と判断)",
      "count": 2528,
      "days_with_event": 18,
      "by_hour_utc": [
       62,
       76,
       137,
       150,
       106,
       97,
       123,
       33,
       39,
       41,
       89,
       142,
       80,
       99,
       116,
       93,
       105,
       205,
       236,
       219,
       75,
       70,
       81,
       54
      ],
      "body_templates": [
       {
        "text": "{ \"error\": { \"code\": 429, \"message\": \"You exceeded your current quota, please check your plan and bi",
        "n": 2528
       }
      ],
      "details": {
       "quota_ids": [
        "GenerateRequestsPerDayPerProjectPerModel-FreeTier"
       ],
       "quota_values": [
        20
       ],
       "retry_delay_s_samples": {
        "median": 34018.0,
        "n": 5
       },
       "models": [
        "gemini-3.5-flash",
        "gemini-3.7-flash"
       ]
      },
      "reset_check": {
       "resets": 17,
       "first_call_after_reset_succeeded": 12,
       "first_call_after_reset_still_limited": 0,
       "no_call_within_6h_or_other_error": 5,
       "minutes_to_first_success_after_reset": {
        "n": 7,
        "median": 1.6,
        "max": 8.4,
        "values": [
         8,
         3,
         0,
         5,
         1,
         2,
         0
        ],
        "caveat": "戻り時刻の15分以内に当社の呼び出しがあった日だけ。当社の呼び出しの間隔 (数分) を含む"
       }
      }
     }
    }
   }
  },
  "qwen": {
   "name": "Alibaba Cloud Model Studio (Qwen、国際版・シンガポール)",
   "name_en": "Alibaba Cloud Model Studio (Qwen, international / Singapore)",
   "documented": [
    {
     "claim": "無料枠はモデルごとに通常 100万 tokens、有効期間 90日 (モデル間で共有しない)",
     "claim_en": "Free quota is typically 1,000,000 tokens per model, valid for 90 days, not shared across models",
     "url": "https://www.alibabacloud.com/help/en/model-studio/new-free-quota",
     "checked": "2026-10-02",
     "page_updated": "2026-09-22"
    },
    {
     "claim": "「無料枠のみ」を有効にすると、使い切った時に AllocationQuota.FreeTierOnly を返して止まる (既定は無効で従量課金に移る)",
     "claim_en": "With 'Free Quota Only' enabled, exhausted quota returns AllocationQuota.FreeTierOnly (disabled by default: usage converts to pay-as-you-go)",
     "url": "https://www.alibabacloud.com/help/en/model-studio/new-free-quota",
     "checked": "2026-10-02",
     "page_updated": "2026-09-22"
    }
   ],
   "reset": {
    "kind": "none"
   },
   "observed_notes": [],
   "observed": {
    "period": [
     "2026-08-13",
     "2026-10-03"
    ],
    "successful_calls": 3787,
    "failed_calls": 56,
    "failure_rate": 0.015,
    "models_succeeded": {
     "qwen-plus": 1669,
     "qwen-max": 1074,
     "qwen-plus-2025-07-28": 805,
     "qwen3.5-plus-2026-02-15": 146,
     "qwen3-max": 59,
     "qwen3.7-plus": 34
    },
    "kinds": {
     "timeout": {
      "label": "応答の時間切れ",
      "count": 10,
      "days_with_event": 2,
      "by_hour_utc": [
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       4,
       0,
       0,
       1,
       1,
       2,
       1,
       1,
       0,
       0,
       0,
       0
      ],
      "body_templates": [
       {
        "text": "<urlopen error timed out>",
        "n": 6
       },
       {
        "text": "The read operation timed out",
        "n": 4
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 10,
       "median": 2.1,
       "p90": 4.3,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "other": {
      "label": "その他",
      "count": 7,
      "days_with_event": 3,
      "by_hour_utc": [
       0,
       0,
       4,
       0,
       0,
       0,
       0,
       0,
       0,
       1,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       0,
       1,
       0,
       1,
       0,
       0,
       0
      ],
      "body_templates": [
       {
        "text": "{\"error\":{\"message\":\"Model is not supported in current workspace service site\",\"id\":\"<id>\",\"type\":\"M",
        "n": 5
       },
       {
        "text": "local endpoint returned no text (local-openai, length)",
        "n": 1
       },
       {
        "text": "<urlopen error [SSL: <id>] EOF occurred in violation of protocol (_ssl.c:1000)>",
        "n": 1
       }
      ],
      "details": {},
      "hours_to_next_success": {
       "n": 7,
       "median": 14.9,
       "p90": 30.1,
       "caveat": "当社の次の呼び出しまでの時間を含む (上限そのものの回復時間ではない)"
      }
     },
     "quota_total": {
      "label": "無料枠の総量を使い切った (Free Quota Only で停止)",
      "count": 39,
      "days_with_event": 7,
      "by_hour_utc": [
       0,
       4,
       1,
       2,
       1,
       3,
       0,
       3,
       1,
       1,
       1,
       3,
       1,
       3,
       1,
       1,
       2,
       2,
       0,
       4,
       0,
       1,
       1,
       3
      ],
      "body_templates": [
       {
        "text": "{\"error\":{\"message\":\"Free quota exhausted. To continue accessing the model on a paid basis, please a",
        "n": 39
       }
      ],
      "details": {}
     }
    }
   }
  }
 }
}