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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Claude 模型系列性能基准报告 · Opus 4.6 — Fable 5 / Mythos 5</title>
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<!-- ==================== MASTHEAD ==================== -->
<header class="masthead">
<div class="wrap">
<div class="kicker">
<span>MODEL EVALUATION REPORT <span class="dot">●</span> ANTHROPIC CLAUDE FAMILY</span>
<span>2026-06-10 · 第 1 版</span>
</div>
<h1>Claude 旗舰模型性能基准:<br>从 Opus 4.6 到 <em>Fable 5 / Mythos 5</em></h1>
<p class="standfirst">基于 Anthropic 官方公告与第三方独立评测的公开数据,系统梳理 2026 年 2 月至 6 月间五代旗舰模型(Opus 4.6 / 4.7 / 4.8、Mythos Preview、Fable 5 / Mythos 5)在软件工程、知识推理、计算机操作与专业领域基准上的表现轨迹。</p>
<div class="meta-strip">
<div><div class="lbl">覆盖周期</div><div class="val">2026.02 — 2026.06</div></div>
<div><div class="lbl">模型数量</div><div class="val">5 代旗舰 + 2 竞品参照</div></div>
<div><div class="lbl">基准项目</div><div class="val">18 项公开基准</div></div>
<div><div class="lbl">数据性质</div><div class="val">厂商报告 + 第三方复测</div></div>
</div>
</div>
</header>
<main class="wrap">
<!-- ==================== 01 摘要 ==================== -->
<section id="summary">
<div class="sec-head"><span class="sec-num">01</span><h2>核心结论</h2><div class="sec-rule"></div></div>
<p class="lede">2026 年上半年,Anthropic 以约 6—10 周的节奏连续迭代旗舰模型。增益集中在<strong>未饱和的高难度基准</strong>上(SWE-bench Pro、HLE、FrontierCode),而接近饱和的基准(GPQA Diamond、SWE-bench Verified)增幅趋缓甚至统计持平。6 月 9 日发布的 Fable 5 将原本仅限安全研究的 Mythos 级能力开放为通用模型,在绝大多数已测基准上达到 SOTA。<sup class="ref">[01][04]</sup></p>
<div class="stats">
<div class="stat"><div class="n">80.3<small>%</small></div><div class="d">Fable 5 / Mythos 5 在 SWE-bench Pro 上的得分——较 Opus 4.8(69.2%)提升 11.1 个百分点,领先 GPT-5.5(58.6%)21.7 个百分点。<sup class="ref">[04]</sup></div></div>
<div class="stat"><div class="n">29.3<small>%</small></div><div class="d">FrontierCode Diamond(Cognition 出品,考察可维护的智能体编码)。Opus 4.8 为 13.4%,GPT-5.5 为 5.7%——差距超过 2 倍。<sup class="ref">[04]</sup></div></div>
<div class="stat"><div class="n"><5<small>%</small></div><div class="d">Fable 5 安全护栏触发率:网络安全、生物化学与蒸馏类请求会回退至 Opus 4.8 作答,平均影响不足 5% 的会话。<sup class="ref">[01]</sup></div></div>
</div>
<div class="callout">
<strong>关于 Mythos 系列的定位:</strong>Mythos Preview 于 2026 年 4 月 7 日由 Anthropic 安全研究部门(red.anthropic.com)披露,定向用于网络安全研究(Project Glasswing),与约 50 家合作方累计发现逾一万个高危/严重级漏洞。<strong>Mythos 5 与 Fable 5 为同一底层模型</strong>:前者面向少数网络防御机构与生物研究者、部分领域护栏解除;后者为加装安全护栏后的通用公开版本。<sup class="ref">[01][02][03]</sup>
</div>
</section>
<!-- ==================== 02 发布时间线 ==================== -->
<section id="timeline">
<div class="sec-head"><span class="sec-num">02</span><h2>发布时间线</h2><div class="sec-rule"></div></div>
<div class="timeline">
<div class="tl-grid">
<div class="tl-item">
<div class="tl-date">2026-02-05</div>
<div class="tl-name">Opus 4.6</div>
<div class="tl-desc">引入自适应思考、1M 上下文(beta)、128K 输出。SWE-bench Verified 80.8%。<sup class="ref">[08]</sup></div>
</div>
<div class="tl-item restricted">
<div class="tl-date">2026-04-07</div>
<div class="tl-name">Mythos Preview</div>
<div class="tl-desc">非公开。定向网络安全研究,红队披露。SWE-bench Pro 77.8%。<sup class="ref">[02]</sup></div>
</div>
<div class="tl-item">
<div class="tl-date">2026-04-16</div>
<div class="tl-name">Opus 4.7</div>
<div class="tl-desc">高难度软件工程显著提升;高分辨率视觉;Anthropic 公开承认其落后于未发布的 Mythos。<sup class="ref">[06][07]</sup></div>
</div>
<div class="tl-item">
<div class="tl-date">2026-05-28</div>
<div class="tl-name">Opus 4.8</div>
<div class="tl-desc">长程自主执行与诚实性升级,价格不变($5/$25)。SWE-bench Pro +4.9pp。<sup class="ref">[05]</sup></div>
</div>
<div class="tl-item accent">
<div class="tl-date">2026-06-09</div>
<div class="tl-name">Fable 5 / Mythos 5</div>
<div class="tl-desc">Mythos 级能力公开化。几乎所有已测基准 SOTA;定价 $10/$50。<sup class="ref">[01]</sup></div>
</div>
</div>
</div>
</section>
<!-- ==================== 03 模型概览 ==================== -->
<section id="lineup">
<div class="sec-head"><span class="sec-num">03</span><h2>模型规格与定位</h2><div class="sec-rule"></div></div>
<p class="lede">下表汇总各模型的 API 标识、上下文规格与官方定价。Opus 三代价格保持一致;Fable 5 定价为 Opus 系的 2 倍,但据 Anthropic 称低于 Mythos Preview 期价格的一半。<sup class="ref">[01]</sup></p>
<div class="cards">
<div class="card feature">
<div class="card-top"><h4>Claude Fable 5</h4><span class="tag frontier">Frontier · GA</span></div>
<div class="mid">claude-fable-5</div>
<p>当前最强公开可用模型。Mythos 级底座 + 通用安全护栏,长程分析任务核心基准首次突破 90%(较 Opus 提升 10 分),推理 token 用量约为 Opus 的 1/3。Stripe 实测:5,000 万行 Ruby 代码库的全库迁移由逾两个月压缩至一天。</p>
<dl>
<dt>上下文</dt><dd>1M tokens</dd>
<dt>最大输出</dt><dd>128K tokens</dd>
<dt>定价</dt><dd>$10 / $50 每百万 tokens(输入/输出)</dd>
<dt>发布</dt><dd>2026-06-09</dd>
</dl>
</div>
<div class="card">
<div class="card-top"><h4>Claude Mythos 5</h4><span class="tag restricted">Restricted</span></div>
<div class="mid">不提供公开 API</div>
<p>与 Fable 5 同一底层模型,在网络安全与生物领域解除部分护栏。仅向 Project Glasswing 网络防御合作方与少数生物研究者开放;流量执行 30 天留存要求且不用于训练。对齐评估显示其失准行为水平"低,且与 Opus 4.8 相当"。</p>
<dl>
<dt>访问方式</dt><dd>定向审批</dd>
<dt>外部红队</dt><dd>1,000+ 小时无通用越狱</dd>
<dt>披露</dt><dd>2026-06-09(Preview:2026-04-07)</dd>
</dl>
</div>
<div class="card">
<div class="card-top"><h4>Claude Opus 4.8</h4><span class="tag ga">GA</span></div>
<div class="mid">claude-opus-4-8</div>
<p>Opus 线现役主力。长程自主智能体执行的前 SOTA,写作更清晰直接;另提供 Fast Mode($10/$50)。与 4.7 同一 API 表面,无新增破坏性变更。</p>
<dl>
<dt>上下文 / 输出</dt><dd>1M / 128K</dd>
<dt>定价</dt><dd>$5 / $25</dd>
<dt>发布</dt><dd>2026-05-28</dd>
</dl>
</div>
<div class="card">
<div class="card-top"><h4>Claude Opus 4.7 / 4.6</h4><span class="tag ga">GA(上代)</span></div>
<div class="mid">claude-opus-4-7 · claude-opus-4-6</div>
<p>4.7(4 月):高难度软件工程大幅跃升(SWE-bench Pro +10.9pp)、2576px 高分辨率视觉、xhigh 努力档。4.6(2 月):自适应思考与 1M 上下文的奠基版本。两者均仍在服务中。</p>
<dl>
<dt>上下文 / 输出</dt><dd>1M / 128K</dd>
<dt>定价</dt><dd>$5 / $25(两代相同)</dd>
<dt>发布</dt><dd>2026-04-16 · 2026-02-05</dd>
</dl>
</div>
</div>
<div class="legend">
<span><i style="background:var(--clay)"></i>Fable 5 / Mythos 5</span>
<span><i style="background:var(--oxblood)"></i>Mythos Preview</span>
<span><i style="background:var(--opus-48)"></i>Opus 4.8</span>
<span><i style="background:var(--opus-47)"></i>Opus 4.7</span>
<span><i style="background:var(--opus-46)"></i>Opus 4.6</span>
<span><i style="background:var(--rival)"></i>竞品(GPT-5.5 / Gemini 3.1 Pro)</span>
</div>
</section>
<!-- ==================== 04 软件工程 ==================== -->
<section id="coding">
<div class="sec-head"><span class="sec-num">04</span><h2>软件工程基准</h2><div class="sec-rule"></div></div>
<p class="lede">增益的分布揭示了改进方向:SWE-bench Verified 已接近饱和(4.7→4.8 仅 +1.0pp),而难度更高、多语言的 SWE-bench Pro 与考察代码可维护性的 FrontierCode Diamond 仍有大幅空间——这正是 4.7、4.8 与 Fable 5 拉开差距的地方。<sup class="ref">[05]</sup></p>
<div class="bench">
<div class="bench-head"><div class="bench-title">SWE-bench Pro <span>多语言 · 高难度真实仓库修复</span></div></div>
<p class="bench-note">本周期内区分度最高的编码基准。Opus 三代呈阶梯式提升(53.4 → 64.3 → 69.2),Mythos/Fable 系再抬升一个台阶。</p>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:80.3"></div></div><div class="bar-val">80.3%</div></div>
<div class="bar-row"><div class="bar-label">Mythos Preview</div><div class="bar-track"><div class="bar-fill mp" style="--w:77.8"></div></div><div class="bar-val">77.8%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:69.2"></div></div><div class="bar-val">69.2%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:64.3"></div></div><div class="bar-val">64.3%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5 <small>OpenAI</small></div><div class="bar-track"><div class="bar-fill rv" style="--w:58.6"></div></div><div class="bar-val">58.6%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro <small>Google</small></div><div class="bar-track"><div class="bar-fill rv" style="--w:54.2"></div></div><div class="bar-val">54.2%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.6</div><div class="bar-track"><div class="bar-fill o46" style="--w:53.4"></div></div><div class="bar-val">53.4%</div></div>
</div>
<div class="bench-src">来源:Anthropic 官方发布数据,经 Vellum / W&B / llm-stats 转述 [04][05][09]</div>
</div>
<div class="bench-grid">
<div class="bench">
<div class="bench-head"><div class="bench-title">SWE-bench Verified <span>接近饱和</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:88.6"></div></div><div class="bar-val">88.6%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:87.6"></div></div><div class="bar-val">87.6%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.6</div><div class="bar-track"><div class="bar-fill o46" style="--w:80.8"></div></div><div class="bar-val">80.8%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:80.6"></div></div><div class="bar-val">80.6%</div></div>
</div>
<div class="bench-src">来源:[05][09]。Fable 5 该项官方未披露</div>
</div>
<div class="bench">
<div class="bench-head"><div class="bench-title">FrontierCode Diamond <span>Cognition · 可维护性</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:29.3"></div></div><div class="bar-val">29.3%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:13.4"></div></div><div class="bar-val">13.4%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:5.7"></div></div><div class="bar-val">5.7%</div></div>
</div>
<div class="bench-src">来源:[01][04]。考察高质量、可维护的智能体编码,远未饱和</div>
</div>
</div>
<div class="bench">
<div class="bench-head"><div class="bench-title">Terminal-Bench 2.1 <span>终端环境智能体任务</span></div></div>
<p class="bench-note">⚠ 该基准对评测脚手架(harness)高度敏感,不同来源数字不可直接混比。下图采用 Anthropic 发布口径 [04];第三方 Terminus-2 harness 复测中 Opus 4.8 为 74.6%、GPT-5.5 为 78.2%,排序有所不同 [05]。</p>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:88.0"></div></div><div class="bar-val">88.0%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:83.4"></div></div><div class="bar-val">83.4%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:82.7"></div></div><div class="bar-val">82.7%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:70.7"></div></div><div class="bar-val">70.7%</div></div>
</div>
<div class="bench-src">来源:[04]。Opus 4.7 / 4.6 在较早的 Terminal-Bench 2.0 上分别为 69.4% / 65.4%,版本不同未并入本图 [06]</div>
</div>
</section>
<!-- ==================== 05 知识与推理 ==================== -->
<section id="reasoning">
<div class="sec-head"><span class="sec-num">05</span><h2>知识、推理与经济价值任务</h2><div class="sec-rule"></div></div>
<p class="lede">Humanity's Last Exam(HLE)覆盖数千道前沿学术难题,是当前区分度最好的知识推理基准之一;GDPval-AA 以 Elo 形式衡量模型完成真实经济价值工作的能力。注意:GPQA Diamond 上 Opus 4.7、4.8 与 Gemini 3.1 Pro 三者统计持平,该基准已基本饱和。<sup class="ref">[05]</sup></p>
<div class="bench">
<div class="bench-head"><div class="bench-title">Humanity's Last Exam <span>带工具</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Mythos Preview</div><div class="bar-track"><div class="bar-fill mp" style="--w:64.7"></div></div><div class="bar-val">64.7%</div></div>
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:64.5"></div></div><div class="bar-val">64.5%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:57.9"></div></div><div class="bar-val">57.9%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:54.7"></div></div><div class="bar-val">54.7%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:52.2"></div></div><div class="bar-val">52.2%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:51.4"></div></div><div class="bar-val">51.4%</div></div>
</div>
<div class="bench-src">来源:[04][05]。无工具口径:Fable 5 59.0% · Mythos Preview 56.8% · Opus 4.8 49.8% · Gemini 44.4% · GPT-5.5 41.4%</div>
</div>
<div class="bench-grid">
<div class="bench">
<div class="bench-head"><div class="bench-title">GDPval-AA <span>Elo · 经济价值工作</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:96.6"></div></div><div class="bar-val">1932</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:94.5"></div></div><div class="bar-val">1890</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:88.5"></div></div><div class="bar-val">1769</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:87.7"></div></div><div class="bar-val">1753</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:65.7"></div></div><div class="bar-val">1314</div></div>
</div>
<div class="bench-src">来源:[04][05]。条形按 Elo/2000 归一化绘制</div>
</div>
<div class="bench">
<div class="bench-head"><div class="bench-title">GPQA Diamond <span>研究生级科学 · 已饱和</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:94.3"></div></div><div class="bar-val">94.3%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:94.2"></div></div><div class="bar-val">94.2%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:93.6"></div></div><div class="bar-val">93.6%</div></div>
</div>
<div class="bench-src">来源:[05]。三者差异在统计噪声范围内,应视为持平</div>
</div>
</div>
</section>
<!-- ==================== 06 智能体与计算机操作 ==================== -->
<section id="agentic">
<div class="sec-head"><span class="sec-num">06</span><h2>计算机操作与垂直智能体</h2><div class="sec-rule"></div></div>
<div class="bench">
<div class="bench-head"><div class="bench-title">OSWorld-Verified <span>图形界面计算机操作</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Mythos Preview</div><div class="bar-track"><div class="bar-fill mp" style="--w:85.4"></div></div><div class="bar-val">85.4%</div></div>
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:85.0"></div></div><div class="bar-val">85.0%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:83.4"></div></div><div class="bar-val">83.4%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:82.8"></div></div><div class="bar-val">82.8%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:78.7"></div></div><div class="bar-val">78.7%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:76.2"></div></div><div class="bar-val">76.2%</div></div>
</div>
<div class="bench-src">来源:[04][05]。Opus 4.6 在早期 OSWorld 口径下为 72.7% [08]</div>
</div>
<div class="bench-grid">
<div class="bench">
<div class="bench-head"><div class="bench-title">Finance Agent v2 <span>金融智能体</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Gemini 3.5 Flash</div><div class="bar-track"><div class="bar-fill rv" style="--w:57.9"></div></div><div class="bar-val">57.9%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:53.9"></div></div><div class="bar-val">53.9%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:51.8"></div></div><div class="bar-val">51.8%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.7</div><div class="bar-track"><div class="bar-fill o47" style="--w:51.5"></div></div><div class="bar-val">51.5%</div></div>
</div>
<div class="bench-src">来源:[05]。Fable 5 该项未披露;另据 [01],Fable 5 在 Hebbia 金融基准上为全模型最高分</div>
</div>
<div class="bench">
<div class="bench-head"><div class="bench-title">Legal Agent Benchmark <span>法律智能体 · 极难</span></div></div>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:13.3"></div></div><div class="bar-val">13.3%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:10.4"></div></div><div class="bar-val">10.4%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:2.1"></div></div><div class="bar-val">2.1%</div></div>
<div class="bar-row"><div class="bar-label">Gemini 3.1 Pro</div><div class="bar-track"><div class="bar-fill rv" style="--w:0.001"></div></div><div class="bar-val">0.0%</div></div>
</div>
<div class="bench-src">来源:[04]。绝对分数低,反映该基准难度而非模型缺陷</div>
</div>
</div>
</section>
<!-- ==================== 07 专业领域 ==================== -->
<section id="domains">
<div class="sec-head"><span class="sec-num">07</span><h2>专业领域:安全、生物与视觉</h2><div class="sec-rule"></div></div>
<p class="lede">这组基准最能体现 Mythos 系列的差异化:网络安全(ExploitBench)与生物科研(BioMysteryBench)是 Mythos 训练定位的直接产物——也正是 Fable 5 加装分类器护栏的原因。<sup class="ref">[02][04]</sup></p>
<div class="bench">
<div class="bench-head"><div class="bench-title">ExploitBench <span>多步网络安全任务</span></div></div>
<p class="bench-note">Fable 5 / Mythos 5 相对 Opus 4.8 接近翻倍。注意:Fable 5 公开版中,触发安全分类器的网络安全请求会回退至 Opus 4.8 作答。</p>
<div class="bars">
<div class="bar-row"><div class="bar-label">Fable 5 / Mythos 5</div><div class="bar-track"><div class="bar-fill f5" style="--w:78.0"></div></div><div class="bar-val">78.0%</div></div>
<div class="bar-row"><div class="bar-label">Mythos Preview</div><div class="bar-track"><div class="bar-fill mp" style="--w:69.0"></div></div><div class="bar-val">69.0%</div></div>
<div class="bar-row"><div class="bar-label">Opus 4.8</div><div class="bar-track"><div class="bar-fill o48" style="--w:40.0"></div></div><div class="bar-val">40.0%</div></div>
<div class="bar-row"><div class="bar-label">GPT-5.5</div><div class="bar-track"><div class="bar-fill rv" style="--w:34.0"></div></div><div class="bar-val">34.0%</div></div>
</div>
<div class="bench-src">来源:[04]</div>
</div>
<table>
<caption>专业领域基准明细(%,加粗为该行最高)</caption>
<thead><tr><th>基准</th><th>Fable 5 / Mythos 5</th><th>Mythos Preview</th><th>Opus 4.8</th><th>GPT-5.5</th><th>Gemini 3.1 Pro</th></tr></thead>
<tbody>
<tr class="hl"><td>BioMysteryBench Hard<span class="sub">生物科研推理 · 高难</span></td><td class="best">46.1</td><td>29.6</td><td>40.0</td><td>—</td><td>—</td></tr>
<tr><td>BioMysteryBench Human-Solved</td><td class="best">83.9</td><td>82.6</td><td>80.4</td><td>—</td><td>—</td></tr>
<tr class="hl"><td>HealthBench Professional<span class="sub">专业医疗问答</span></td><td class="best">66.0</td><td>64.7</td><td>56.9</td><td>51.8</td><td>—</td></tr>
<tr><td>GDP.pdf<span class="sub">复杂文档视觉理解</span></td><td class="best">29.8</td><td>—</td><td>22.5</td><td>24.9</td><td>16.7</td></tr>
<tr><td>Blueprint-Bench 2<span class="sub">图纸空间推理</span></td><td class="best">38.6</td><td>—</td><td>14.5</td><td>36.2</td><td>26.5</td></tr>
<tr><td>AutomationBench<span class="sub">自动化流程</span></td><td class="best">17.4</td><td>—</td><td>15.5</td><td>12.9</td><td>9.6</td></tr>
</tbody>
</table>
<div class="bench-src" style="border:none;padding-left:0">来源:[04]。"—" 表示该来源未披露对应数字</div>
<div class="callout warn">
<strong>实验性结果(非标准基准,谨慎采信):</strong>药物设计——内部蛋白质专家报告设计流程约 10 倍加速,14 个蛋白靶点中 9 个产出强候选药物分子;分子生物学盲评中,科学家约 80% 的情况下更偏好 Mythos 的假设(对照 Opus 级模型)。这些为 Anthropic 自报的内部评估,缺乏外部复现。<sup class="ref">[01]</sup>
</div>
</section>
<!-- ==================== 08 价格 ==================== -->
<section id="pricing">
<div class="sec-head"><span class="sec-num">08</span><h2>定价与性价比</h2><div class="sec-rule"></div></div>
<table>
<caption>API 定价(美元 / 百万 tokens)· 数据截至 2026-06-10</caption>
<thead><tr><th>模型</th><th>API 标识</th><th>输入</th><th>输出</th><th>上下文</th><th>最大输出</th><th>发布日期</th></tr></thead>
<tbody>
<tr class="hl"><td>Claude Fable 5</td><td>claude-fable-5</td><td>$10.00</td><td>$50.00</td><td>1M</td><td>128K</td><td>2026-06-09</td></tr>
<tr><td>Claude Mythos 5</td><td>—(定向访问)</td><td colspan="2">$10.00 / $50.00</td><td>—</td><td>—</td><td>2026-06-09</td></tr>
<tr><td>Claude Opus 4.8</td><td>claude-opus-4-8</td><td>$5.00</td><td>$25.00</td><td>1M</td><td>128K</td><td>2026-05-28</td></tr>
<tr><td>Claude Opus 4.8 Fast Mode</td><td>—(/fast 切换)</td><td>$10.00</td><td>$50.00</td><td>1M</td><td>128K</td><td>2026-05-28</td></tr>
<tr><td>Claude Opus 4.7</td><td>claude-opus-4-7</td><td>$5.00</td><td>$25.00</td><td>1M</td><td>128K</td><td>2026-04-16</td></tr>
<tr><td>Claude Opus 4.6</td><td>claude-opus-4-6</td><td>$5.00</td><td>$25.00</td><td>1M</td><td>128K</td><td>2026-02-05</td></tr>
</tbody>
</table>
<p class="bench-src" style="padding-left:0">注:Opus 系 1M 上下文为标准定价,无长上下文加价。Fable 5 于 2026-06-09 至 06-22 期间在 Pro / Max / Team / Enterprise 订阅中免费提供,之后转为消耗用量额度 [01]。Token 效率方面,Anthropic 称 Fable 5 以约 1/3 的推理 token 达成结果,部分抵消其 2 倍单价。</p>
</section>
<!-- ==================== 09 方法论 ==================== -->
<section id="methodology">
<div class="sec-head"><span class="sec-num">09</span><h2>方法论说明与数据局限</h2><div class="sec-rule"></div></div>
<div class="callout">
<strong>阅读本报告前请注意以下四点:</strong><br>
① <strong>厂商自报偏差</strong>——多数数字源自 Anthropic 发布材料,竞品分数为 Anthropic 选取的对照口径;GPT-5.5 与 Gemini 3.1 Pro 官方报告的数字可能因脚手架与采样设置不同而更高。
② <strong>脚手架敏感性</strong>——Terminal-Bench 等智能体基准在不同 harness 下分差可达 8 个百分点以上(本文已分别标注口径)。
③ <strong>饱和基准的排名无意义</strong>——GPQA Diamond、SWE-bench Verified 上 1 个百分点以内的差异应视为统计持平。
④ <strong>Fable 5 部分项目缺数</strong>——其 SWE-bench Verified、GPQA、AIME、MMMU 分数截至本报告日期未公开披露,空缺处已以"—"标明,不做推断。
</div>
</section>
<!-- ==================== 10 来源 ==================== -->
<section id="sources" class="sources">
<div class="sec-head"><span class="sec-num">10</span><h2>资料来源</h2><div class="sec-rule"></div></div>
<ol>
<li><div><a href="https://www.anthropic.com/news/claude-fable-5-mythos-5">Claude Fable 5 and Claude Mythos 5 — Anthropic 官方公告</a><div class="s-meta">anthropic.com · 2026-06-09 · 一手来源:定价、安全护栏、企业实测</div></div></li>
<li><div><a href="https://red.anthropic.com/2026/mythos-preview/">Claude Mythos Preview — Anthropic 红队披露</a><div class="s-meta">red.anthropic.com · 2026-04-07 · 一手来源:Mythos 定位与 Project Glasswing</div></div></li>
<li><div><a href="https://www.anthropic.com/claude/mythos">Claude Mythos 产品页 — Anthropic</a><div class="s-meta">anthropic.com · 一手来源</div></div></li>
<li><div><a href="https://wandb.ai/byyoung3/ml-news/reports/Claude-Fable-5-Benchmark-Scores--VmlldzoxNzE3NTE3MQ">Claude Fable 5 Benchmark Scores — Weights & Biases ML News</a><div class="s-meta">wandb.ai · 2026-06 · 二手汇编:Fable 5 / Mythos 全套基准表</div></div></li>
<li><div><a href="https://www.vellum.ai/blog/claude-opus-4-8-benchmarks-explained">Claude Opus 4.8 Benchmarks Explained — Vellum</a><div class="s-meta">vellum.ai · 2026-05 · 二手分析:Opus 4.8 全套基准与 Terminus-2 复测</div></div></li>
<li><div><a href="https://www.anthropic.com/news/claude-opus-4-7">Introducing Claude Opus 4.7 — Anthropic 官方公告</a><div class="s-meta">anthropic.com · 2026-04-16 · 一手来源</div></div></li>
<li><div><a href="https://www.axios.com/2026/04/16/anthropic-claude-opus-model-mythos">Anthropic releases Claude Opus 4.7, concedes it trails unreleased Mythos — Axios</a><div class="s-meta">axios.com · 2026-04-16 · 独立报道</div></div></li>
<li><div><a href="https://www.datacamp.com/blog/claude-opus-4-6">Claude Opus 4.6: Features, Benchmarks, Tests — DataCamp</a><div class="s-meta">datacamp.com · 2026-02 · 二手分析:Opus 4.6 基线数据</div></div></li>
<li><div><a href="https://www.vellum.ai/blog/claude-opus-4-7-benchmarks-explained">Claude Opus 4.7 Benchmarks Explained — Vellum</a><div class="s-meta">vellum.ai · 2026-04 · 二手分析:4.7 vs 4.6 对比</div></div></li>
<li><div><a href="https://venturebeat.com/technology/anthropic-brings-mythos-to-the-masses-with-claude-fable-5-its-most-powerful-generally-available-model-ever">Anthropic brings Mythos to the masses with Claude Fable 5 — VentureBeat</a><div class="s-meta">venturebeat.com · 2026-06-09 · 独立报道</div></div></li>
<li><div><a href="https://the-decoder.com/anthropic-releases-claude-fable-5-and-mythos-5-with-major-gains-in-coding-and-science/">Anthropic releases Claude Fable 5 and Mythos 5 — The Decoder</a><div class="s-meta">the-decoder.com · 2026-06-09 · 独立报道</div></div></li>
</ol>
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