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!
They called Huawei a national security threat.
They called TikTok a national security threat.
They called the Asian Infrastructure Investment Bank a national security threat.
They called a Chinese balloon a national security threat.
At some point the category loses its meaning.
Not because China has no interests or poses no competition.
But because "national security threat" has become the specific vocabulary American power uses when it wants to eliminate competition without making an economic argument it can win.
One of the most significant things about Gemini 4 Carbon is that it is showing that Google is back in the race of frontier models, rapid releases and rapid improvement.
Jensen几天前在德国指点江山的视频还历历在目,时至今日已经仿佛是条落水狗一般,让人唏嘘。
当年Jensen语出惊人的说出“川主席的英明领导是美国最大的优势”一语,可谓是独领风骚,让我以为Jensen其实全都懂,事到如今发现他并不是全都懂。
人类这个生物,最难的就是“激流勇退”,这也是为什么George Washington 一直被人热爱与铭记。