{ "collectedAt": "2026-09-13", "scopeNote": "第一轮专项搜集：Anthropic Claude 订阅（Pro $20 / Max 5x $100 / Max 20x $200）内跑 Claude Fable 5.1 的可用性、订阅内消耗权重、API 标价，以及 2026-09-01 之后任何绝对 token 池实测。口径：全 token（输入+缓存读+缓存写+输出）一视同仁；月默认=4周；饱和使用。Fable 5 历史权重（Reddit 6.50×/4.25×）与 50% 周额度上限见 claude-quotas-round5 / quotas-web-2026-09；本轮不覆盖旧文件，只追加 5.1 新证据。矛盾来源全部保留，不自行择一。不许编数。", "priorContext": { "claudeAdoptionRound6": "data/research/claude-adoption-round6-2026-09-06.json — 现行 Max20x=157亿/月、Max5x=78.5亿/月（9/14 永久口径）；Fable 5 派生用 6.5×(20x)/4.25×(5x) 且限周额度 50%", "claudeQuotasRound5": "data/research/claude-quotas-round5-2026-09.json — 历史证据池（zenn skipbit、Reddit 权重等）", "scoresAaRound3": "data/research/scores-aa-round3-2026-09-09.json — Fable 5.1 已在 AA 榜出现，X 轴尚无额度" }, "items": [ { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1", "claim": "官方：Claude Fable 5.1 于 2026-09-01 发布；对个人/组织在 Pro、Max、Team、Enterprise 可用；API id 为 claude-fable-5-1；标价 $10/MTok input、$50/MTok output，缓存读降至 $0.25/MTok（比 Fable 5 便宜 75%）", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": null, "evidenceType": "official_doc", "source": "https://www.anthropic.com/claude/fable", "sourceDate": "2026-09-01", "quote": "Claude Fable 5.1 is available to Pro, Max, Team, and Enterprise users. ... Claude Fable 5.1 is priced at $10 per million input tokens and $50 per million output tokens. Cache reads now cost $0.25 per million tokens, 75% less than Fable 5 ... To get started, use claude-fable-5-1 via the Claude API.", "confidence": "high", "note": "产品页同时确认可用性与 API 标价。缓存读降价明确写在按 token 计费场景；订阅计量是否跟降见 ClaudeDevs 帖与 paddo 分析。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1 / claude-fable-5", "claim": "官方 Help Center：Fable 5 与 Fable 5.1 在套餐上规则相同。Max / Team premium / seat-based Enterprise premium：两者均为套餐标准组成部分，最多可用周额度的 50% 跑 Fable 系列（从同一周池扣减，且比其他模型更快）。Pro / Team standard：两者均不计入套餐周额度，从第一条起走 usage credits；7 月 Fable 5 一次性 credit 不适用于 5.1。Claude Code：Fable 5 需 ≥2.1.170，Fable 5.1 需 ≥2.1.255。模型选择器可选 Fable 5 或 Fable 5.1（5 未被取代下线）", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "50% 是同一周池内的 Fable 系列封顶份额，不是额外半池；官方 FAQ 明确不会因为 Fable 而超过总周上限。", "evidenceType": "official_doc", "source": "https://support.claude.com/en/articles/15424964-claude-fable-models-on-your-plan", "sourceDate": "2026-09-02", "quote": "Fable 5 and Fable 5.1 work the same way on your plan. ... You can use up to 50% of your weekly usage limits on Fable models at no extra cost. They draw from your plan's regular weekly usage limits and use them faster than other Claude models. ... Pro plans and standard seats ... aren't included in your plan's usage limits. ... In Claude on the web, Claude Desktop, and Claude Mobile, select \"Fable 5\" or \"Fable 5.1\" from the model picker. In Claude Code, Fable 5 requires version 2.1.170 or later and Fable 5.1 requires version 2.1.255 or later. ... Claude Fable 5.1 was never part of it [the July 19 promo].", "confidence": "high", "note": "这是订阅内可用性与 50% 限额的金标准官方口径。官方仍只写 'faster than other Claude models'，未公布相对 Opus 的精确倍数；也未区分 5 与 5.1 的订阅权重差。" }, { "planId": "claude_pro", "priceUsd": 20, "model": "claude-fable-5-1", "claim": "官方：Pro（及 Team standard）可见并可选用 Fable 5.1，但不计入套餐周额度；从第一条起扣 usage credits；无 Fable 5.1 一次性赠送 credit", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "Pro 上 Fable 5.1 的订阅内可用 token = 0（计划内）；额外用量按 API 标价从 usage credits 扣。", "evidenceType": "official_doc", "source": "https://support.claude.com/en/articles/15424964-claude-fable-models-on-your-plan", "sourceDate": "2026-09-02", "quote": "On Pro plans and standard seats on Team plans: Fable 5 and Fable 5.1 aren't included in your plan's usage limits. You can use them with usage credits ... That credit applied to the Fable 5 change only, and there's no equivalent credit for Fable 5.1.", "confidence": "high", "note": "Notebookcheck 2026-09-02 同证：付费用户都能在选择器看到 Fable 5.1，但 Pro 额外付费。https://www.notebookcheck.net/Claude-Fable-5-1-is-not-included-in-your-Pro-subscription.1385320.0.html" }, { "planId": "anthropic_fable51_api", "priceUsd": null, "model": "claude-fable-5-1", "claim": "官方定价页：Claude Fable 5.1 = $10/MTok base input、$12.50 5m cache write、$20 1h cache write、$0.25 cache hits/refreshes、$50 output；Batch 半价 $5/$25。脚注：Fable 5.1 / Mythos 5.1 缓存命中为 base input 的 0.025×，其他模型仍为 0.1×。Fable 5 仍为 $10/$1 cached/$50", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "与 Fable 5 相比：input/output/cache write 同价；唯独 cache read $1 → $0.25（4× 更便宜）。", "evidenceType": "official_table", "source": "https://platform.claude.com/docs/en/about-claude/pricing", "sourceDate": "2026-09-13", "quote": "Claude Fable 5.1 | $10 / MTok | $12.50 / MTok | $20 / MTok | $0.25 / MTok1 | $50 / MTok ... Claude Fable 5 | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok ... *1 Cache hits and refreshes on Claude Fable 5.1 and Claude Mythos 5.1 are priced at 0.025x the base input price. All other models use the standard 0.1x multiplier.*", "confidence": "high", "note": "2026-09-13 现场核对官方定价表。模型总览同证：https://platform.claude.com/docs/en/models/fable-5-1/overview 。发布说明：https://docs.anthropic.com/en/release-notes/overview （2026-09-01）。" }, { "planId": "anthropic_fable51_api", "priceUsd": null, "model": "claude-fable-5-1", "claim": "官方 What's new：Fable 5.1 与 Fable 5 同价，唯缓存读不同；并标明 Fable 5 为 legacy、仍可用，建议迁移到 5.1", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": null, "evidenceType": "official_doc", "source": "https://platform.claude.com/docs/en/models/fable-5-1/whats-new-fable-5-1", "sourceDate": "2026-09-01", "quote": "Claude Fable 5.1 and Claude Mythos 5.1 are priced the same as Claude Fable 5, except for cache reads ... Cache reads (hits and refreshes) cost 0.025 times the base input price on these models, compared with 0.1 on other Claude models. ... Long agentic sessions that re-read a cached prefix pay a quarter of the Claude Fable 5 rate.", "confidence": "high", "note": "Fable 5 overview 标注 Status=Active (legacy)，Retirement not sooner than June 9, 2027：https://platform.claude.com/docs/en/models/fable-5/overview 。5.1 未取代下线 5，两者并存。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1 (Claude Code)", "claim": "官方 @ClaudeDevs：Fable 5.1 上线 Claude Code / Claude Platform；API 缓存读降价；但「In Claude Code, cache reads count at a reduced rate toward subscription usage, which remains unchanged」——即订阅计量里缓存读权重未随 API $0.25 下调", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "对 X 轴含义：API 账单变便宜 ≠ 订阅周池消耗变慢。社区反映 5.1 更烧订阅额度，与此句一致。", "evidenceType": "official_announcement", "source": "https://x.com/ClaudeDevs/status/2094851235694497836", "sourceDate": "2026-09-01", "quote": "To lower costs, we've kept pricing the same as Fable 5 while lowering the price of cache reads on usage-based billing. Cache reads on Fable 5.1 are $0.25/MTok, down from $1/MTok on Fable 5. ... In Claude Code, cache reads count at a reduced rate toward subscription usage, which remains unchanged. Long sessions billed at API rates can net out 25%-45% cheaper.", "confidence": "high", "note": "同线程宣布 Fable 5.1 上线 Claude Code：https://x.com/ClaudeDevs/status/2094851229734277228 。同日重置全体 5h+周额度：https://x.com/ClaudeDevs/status/2094856679250919746 。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1", "claim": "GitHub issue 受控对比：同一生产负载、Max 20x，Fable 5.1 上线后约 22 小时周额度从 0% 到 88%；Fable 专用桶先打满（16:22 weekly 79%/Fable 99% → 16:45 weekly 81%/Fable 100% → 18:31 weekly 88%）。JSONL 同会话内 Fable 5 vs 5.1：output tokens/turn 783 → 1596（2.04×）；全机 2.07×；Opus 5 平均 637。客户端 2.1.257 把 fable 别名静默切到 5.1", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "有 /api/oauth/usage 百分比与 JSONL output/turn，无全量 total tokens×% 反推周池绝对值。作者明确未发表 per-account total token 归因。", "evidenceType": "ccusage_with_pct", "source": "https://github.com/anthropics/claude-code/issues/91623", "sourceDate": "2026-09-02", "quote": "On 2026-09-02 my Max 20x plan went from a zeroed counter to 88% of the weekly limit in about 22 hours. ... Fable 5.1 emits about twice the output per turn that Fable 5 did. ... claude-fable-5 | 6,613 | 783 ... claude-fable-5-1 | 1,222 | 1,596 ... 2.04x. Across every session on this machine, 2.07x. Opus 5 averages 637. ... Method: every assistant turn in ~/.claude/projects/**/*.jsonl, read from message.usage, deduplicated on (sessionId, message.id).", "confidence": "high", "note": "金标准级相对消耗证据（同机同负载 JSONL + OAuth usage 百分比）。证明：① Max 上仍有独立 Fable weekly_scoped 桶；② 5.1 每 turn 输出约 2× Fable 5、约 2.5× Opus 5；③ 未给出订阅内「额度权重倍数」的新标定，不能直接替换 Reddit 对 Fable 5 的 6.50×/4.25×。第二账号出现 Fable 100% 而 weekly 仅 57–62% 的错位，作者怀疑与 #74972 同类计量异常。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1", "claim": "独立博客（转述 r/ClaudeAI megathread + 自有 10 天 Claude Code 日志）：订阅侧 50% Fable 上限对 5.1 不变；API 侧缓存降价使作者工作负载约便宜 43%；但 Max 不按 token 计费，5.1 更饿——AA max effort 输出 140M vs Fable 5 的 83M（1.7×）；作者日志 1207 vs 990 output/turn（+22%）；megathread 有「2 小时吃掉 Max-20 周 Fable 额度 40%」「5h 窗 20/30 分钟打满」；最谨慎双账号测试称「可能只剩昨天 1/3 到 1/4 的真实 Fable-minutes」", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "相对 burn rate / 输出量对比，非周池绝对 token。", "evidenceType": "community_measurement", "source": "https://paddo.dev/blog/fable-5-1-two-meters/", "sourceDate": "2026-09-03", "quote": "A Max plan is not billed by token. ... No multiplier is published. The 50% weekly Fable cap from the July settlement is unchanged for 5.1. And 5.1 uses more. Artificial Analysis ran both models at max effort: Fable 5.1 spent 140 million output tokens on its index where Fable 5 spent 83 million, 1.7 times as many ... My logs say ... 1,207 output tokens per turn on 5.1 against 990 on Fable 5, 22% more ... Fable 5.1 appears to use substantially more tokens, which are discounted for API but not session, meaning you might have 1/3 to 1/4 the real Fable-minutes that you did yesterday.", "confidence": "medium", "note": "把「API 更便宜 / 订阅更饿」两把尺子拆开，与 ClaudeDevs「subscription usage ... remains unchanged」互证。Reddit 原帖被网络策略拦截，本条以 paddo 引文为准；megathread URL 见同文。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1", "claim": "Reddit r/ClaudeAI：用户故意打满实验——重置后约 8 小时内用 Fable 5.1 烧光整个 Max 20x；统计 881 Fable 5.1 turns、~1.32M Fable output、~698k reasoning、118,626,370 Fable 5.1 cached tokens（总 cached 164,190,733）；effort 分布含大量 Max/High", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "给出了单次打满窗口的部分 token 构成，但未与 /usage % 同框反推周池绝对值；且是故意高压多线程实验，不能当常态饱和口径。", "evidenceType": "community_measurement", "source": "https://www.reddit.com/r/ClaudeAI/comments/1w4zyr5/1st_impressions_i_burned_an_entire_claude_max_20x", "sourceDate": "2026-09-02", "quote": "(1st impressions) I burned an entire Claude Max 20x on Fable 5.1 in 8 hours ... 881 Fable 5.1 turns ... ~1.32M Fable output tokens, ~698k reasoning ... 118,626,370 Fable 5.1 cached tokens ... Fable effort usage: 452 Max, 288 High, 101 XHigh, and 40 Medium turns", "confidence": "medium", "note": "证明 Max 20x 在高 effort 多 subagent 下可在单日内耗尽；cached≈1.19 亿仅为该实验窗口，远低于周池量级，不能外推全周硬顶。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1", "claim": "Reddit：Day-one 使用后约 30% Fable usage 在一天内耗尽（代码库测试 + 不愿让其 spawn Opus agents）", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "口述 Fable 桶百分比，无绝对 token。", "evidenceType": "community_report", "source": "https://www.reddit.com/r/ClaudeAI/comments/1w5ai3j/fable_51_is_insane_and_it_burned_usage_which_is/", "sourceDate": "2026-09-02", "quote": "Problem: 30% of my Fable usage gone in a day, mainly because I want to test it in the codebase, but also because I ain't fucking letting it spawn Opus 5 agents.", "confidence": "low", "note": "单一口述；方向与 GitHub #91623 / paddo 一致。" }, { "planId": "claude_max_5x", "priceUsd": 100, "model": "claude-fable-5-1", "claim": "V2EX：Max 5x 用户称「5x 根本没法玩 Fable」；用 Fable 5.1 开 7 个 agent 扫隐藏 bug，各 agent 未跑完即因额度不够中断。另有用户称 Pro 只能走额外 usage", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "无绝对 token 或精确 %；定性说明 5x 上 Fable 5.1 很快触顶。", "evidenceType": "community_report", "source": "https://www.v2ex.com/t/1238813", "sourceDate": "2026-09-02", "quote": "5x 根本没法玩 Fable 。。... 不够，Fable 特别烧 token ，目前的思路只能是让 Fable 出文档或方案，写代码的活不能放 Fable 干，我本身想测试下 Fable5.1 能不能给扫出来点隐藏 bug ，一个任务开了 7 个 agent ，每个 agent 都没执行完就因为额度不够中断了，基本白干", "confidence": "low", "note": "同帖确认 2026-09-01 前后有额度异常提前重置现象；@ClaudeDevs 同日宣布全体重置可解释部分观察。" }, { "planId": "claude_max_5x", "priceUsd": 100, "model": "claude-fable-5-1", "claim": "V2EX 另一帖回复：用户用 Fable 5.1 不到一小时，Max 5x 的五小时窗口就被用完", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "5h 窗口述，无周 %、无绝对 token。", "evidenceType": "community_report", "source": "https://www.v2ex.com/t/1239058", "sourceDate": "2026-09-02", "quote": "怎么做到这么耐用的。我用它不到一小时，5x 的五小时窗口就被用完了", "confidence": "low", "note": "与 Reddit megathread「15–20 分钟打满 5h 窗」同方向；effort/subagent 配置未披露。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5 (historical weight; NOT remeasured for 5.1)", "claim": "历史社区逆向（Fable 5，2026-08-24）：订阅内 Fable 相对 Opus 权重约 6.50×（Max 20x）/ 4.25×（Max 5x），远高于 API 标价 2×；满 Fable 时 x20 的 Fable 封顶约 108.6 M fable-TV/周。本轮未找到针对 Fable 5.1 的同方法复测", "weeklyTokens": 108600000, "monthlyTokens": 434400000, "tokenCountingNote": "fable-TV 单位（作者定义，≈Opus-input-equivalent），非 raw ccusage total；monthly=×4。仅作 Fable 5 历史锚点，不得直接标为 Fable 5.1 采用值。", "evidenceType": "community_measurement", "source": "https://www.reddit.com/r/ClaudeAI/comments/1vx0k69/lifting_the_curtain_the_max_x5_and_max_x20_usage/", "sourceDate": "2026-08-24", "quote": "Fable weight (× Opus) Max x20 6.50 ... Fable cap (M fable-TV) 108.6", "confidence": "medium", "note": "已归档于 data/research/quotas-web-2026-09.json。现行 build_adopted.py 对 claude-fable-5 仍用 6.5×/4.25× + 50% 周帽。对本轮问题：Fable 5.1 是否同权重 = notFound（无新标定）；方向证据显示 5.1 每 turn 更重，若计量公式未改，有效 Fable-minutes 会进一步下降。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "all-models / Claude Max weekly reset", "claim": "官方：2026-09-01 Fable 5.1 上线当日重置全体用户 5h+周额度；2026-09-04 @lydiahallie（Claude Code）再次重置所有 Claude Max 计划的周额度（Max-only），理由是 Fable 5.1 发布后的长周末", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "重置清零计数器，不改变池子大小；会干扰 9 月初任何打满反推。", "evidenceType": "official_announcement", "source": "https://x.com/lydiahallie/status/2095967323412930677", "sourceDate": "2026-09-04", "quote": "We've just reset weekly limits for everyone on a Claude Max plan. With Fable 5.1 out and a long weekend ahead for many of you, we wanted to keep you building.", "confidence": "high", "note": "9/1 全体重置：https://x.com/ClaudeDevs/status/2094856679250919746 。归档页：https://claude-resets.com/ 。9/14 起永久 +25% 基线相对夏季 +50% boost 净降约 17%，见既有 round5/round6。" }, { "planId": "claude_max_20x", "priceUsd": 200, "model": "claude-fable-5-1 (effort UI multiplier confusion)", "claim": "Reddit 讨论：Fable 5.1 上 Max effort 显示约 3.5× usage multiplier，社区解释为相对模型默认 effort 的倍率标签——5.1 默认 Medium（claude.ai/Cowork）时 Medium→Max≈3.5×，而 Fable 5 默认 High 时 High→Max≈1.5×；实际 Max effort 的绝对 token 成本两边相近，标签不可直接当订阅权重", "weeklyTokens": null, "monthlyTokens": null, "tokenCountingNote": "effort UI 倍率 ≠ 模型相对 Opus 的订阅权重。官方：Claude Code 默认 High，claude.ai/Cowork 默认 Medium。", "evidenceType": "community_report", "source": "https://www.reddit.com/r/ClaudeAI/comments/1w4k7yd/just_know_this_about_fable_51_max", "sourceDate": "2026-09-01", "quote": "The main takeaway from this thread is that the 3.5x usage multiplier on Max is confusing ... Fable 5.1 defaults to Medium. Going from Medium to Max is a 3.5x jump. Fable 5.0 defaults to High. Going from High to Max is a 1.5x jump. The actual token cost for Max is the same on both models; the label is just inconsistent and confusing.", "confidence": "low", "note": "自动摘要转述；原文 Reddit 抓取被拦。与官方 announcement「Fable 5.1 defaults to High effort in Claude Code, and to Medium in Claude Cowork and on Claude.ai」一致方向。" } ], "notFound": [ { "query": "Fable 5.1 订阅内相对 Opus / Fable 5 的精确权重倍数（面板/% 同框标定，类似 Reddit 1vx0k69 对 Fable 5 的 6.50×/4.25×）", "result": "notFound", "note": "官方只写 faster than other Claude models；GitHub #91623 给出 output/turn≈2× Fable 5，但不是额度权重标定。现有 adopted 的 6.5×/4.25× 仍仅为 Fable 5 历史值。" }, { "query": "2026-09-01 之后 Claude Max/Pro 周池绝对 token 打满反推（ccusage/JSONL total 与 /usage % 同框）", "result": "notFound", "note": "搜过 GitHub claude-code issues、zenn.dev、V2EX、Reddit、X。#91623 有 % 与 output/turn，无 total×% 反推。9/1 与 9/4 官方重置进一步干扰。夏季 skipbit 47.2 亿/周等仍见 round5，日期在 8 月。" }, { "query": "Fable 5.1 是否已完全取代 Fable 5（下线/强制迁移）", "result": "found_negative", "note": "官方仍列 Fable 5 为 Active (legacy)，Help Center 选择器写 Fable 5 或 Fable 5.1；未发现强制下线公告。Claude Code fable 别名默认解析到 5.1（#91623）。" }, { "query": "site:qiita.com OR site:news.ycombinator.com Fable 5.1 subscription weight OR weekly tokens absolute", "result": "notFound", "note": "本轮未从 Qiita/HN 拿到面板级绝对 token 或新权重标定。" }, { "query": "LinuxDo Fable 5.1 Max 额度/权重实测（非中转商广告）", "result": "notFound", "note": "检索命中多为第三方 API 中转促销帖，无可用面板反推。" }, { "query": "Discord 截图转述：Fable 5.1 /usage 与 raw token 同框", "result": "notFound", "note": "公开网未找到可核验的 Discord 截图证据链。" } ], "summaryForAdoption": { "availability": "Fable 5.1 已在 Claude 订阅提供：Max/premium 计划内最多 50% 周额度；Pro/standard 仅 usage credits。Claude Code ≥2.1.255。Fable 5 仍可用（legacy）。", "apiPrice": "claude-fable-5-1: $10 in / $0.25 cached / $50 out（write 5m $12.50 / 1h $20）。input/out 与 Fable 5 同；cached 从 $1 降到 $0.25。", "subscriptionWeight": "官方未公布 5.1 新倍数。Fable 5 历史 Reddit 6.50×(20x)/4.25×(5x) 未被本轮复测取代。5.1 方向证据：每 turn 输出约 2× Fable 5（GitHub high），订阅缓存计量未跟 API 降价（ClaudeDevs high），社区称 Fable-minutes 可能只剩 1/3–1/4（medium/low）。50% 周帽对 5+5.1 合计仍适用（official high）。", "absolutePoolAfterSep1": "notFound — 无新的 total×% 金标准；9/1、9/4 重置干扰。", "adoptionImplication": "若要为 X 轴新增 (claude_max_*, claude-fable-5-1) 点：可用性与 50% 帽可采；API 标价可采；订阅权重倍数尚不足以把 6.5/4.25 直接改标为 5.1，需裁定是否沿用 Fable 5 权重、或等待新标定、或仅用 output/turn≈2× 作保守方向修正。" } }