Claude Fable 5.2 (Max) 以 +30.4% 净提升登顶 Arena Agent 榜首
Arena 宣布 Claude Fable 5.2 (Max) 在 Agent Arena 登顶，净提升 +30.4%，约为第二名 Opus-5.5（+19.5%）的 1.6 倍，数据来自 4.7k 真实智能体会话。
Arena 用 4.7k 真实智能体会话给出排名与成本对比，可据此看 Fable 5.2 在 Agent 场景的位置。
Arena.ai· @arena · X·2026-11-12 01:23· 32 分钟前AI 评分74
AI 导读
Arena 宣布 Claude Fable 5.2 (Max) 登顶 Agent Arena，净提升 +30.4%，约为第二名 Opus-5.5（+19.5%）的 1.6 倍，数据来自 4.7k 真实智能体会话。
正文 · 原文
Big news: Claude Fable 5.2 (Max) by @AnthropicAI takes #1 in Agent Arena with an unprecedented lead: +30.4% net improvement, about 1.6x the #2 model Opus-5.5, across 4.7k real-world agentic sessions from our global community. It's also #1 in Code, Chat and Work.
A major leap over Claude Fable 5.1 (Max)
- Rank: #5 → #1, Net improvement: +14.8% → +30.4%
- Median cost per task: $7.7 → $7.3 (6% lower). The API pricing $10/$50 → $8/$40 per million input/output tokens (20% lower)
vs. The Frontiers
- #1 Claude Fable 5.1 (Max): +30.4% | $7.3/task
- #2 Claude Opus 5.5 (Max):+19.5%) | $5.5/task
- #3 Gemini 4 Carbon (High):+17.0%) | $1.5/task
- #6 GPT-6-Astra (Max): +14.5% | $6.0/task
Breaking down performance across signals:
Fable 5.2 improves over 5.1 across all four reported signals, with particularly large gains in user satisfaction and steerability.
- #1 Praise vs. Complaint , +73%, biggest jump vs +41% the next model.
- #1 Steerability: +33%
- #1 Confirmed Success: +22%
- #3 Bash Reliability: +14%
#1 across all major categories
- #1 Code: +34%
- #1 Work: +31%
- #1 Chat: +27%
- Versus Fable 5.1: Code #6 → #1 (+19.8 %), Work #4 → #1 (+15.8 %), Chat #6 → #1 (+12.0%).
Huge congrats to the @AnthropicAI team on this incredible release!
在 X 查看被引用的帖子Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.
They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.
来源：Arena.ai · x.com
事件后续 · 7
- 同事件Anthropic Fable 5.2 在 Remote Labor Index 上以 41.3% 领跑真实自由职业任务The Decoder：AI News · 1 天前
- 同事件Simon Willison 更新 llm-anthropic 0.31 支持 Anthropic 新模型 Fable 5.2 与 Mythos 5.2Simon Willison 博客 · 2 天前
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- 同事件Claude Fable 5.2 上线 Devin Desktop 和 Devin CLICognition · 2 天前
- 同事件Anthropic 用 1000 个 Claude Fable 5.2 智能体在沙箱内复现费马大定理形式化证明Anthropic：Claude.dev 开发者博客 · 2 天前
- 同事件Anthropic 发布 Claude Fable 5.2 与 Claude Mythos 5.2Anthropic：Newsroom · 2 天前
来源：RadarAI · aihot.news