Anthropic Claude Fable 5：价格翻倍，性能仅提升5.7%

2026-06-13 01:10·20天前·Matthias Bastian

AI 摘要

Claude Fable 5 在 Artificial Analysis Intelligence Index 中取得 64.9 分，在十项基准测试中有五项创下纪录。相比 Opus 4.8，性能提升仅 5.7%，但 token 价格翻倍。安全过滤与回退路由功能进一步推高了成本。

原文 · 未翻译

Anthropic's Claude Fable 5 costs twice as much for 5.7 percent more performance

Claude Fable 5 tops the Artificial Analysis Intelligence Index and sets new highs across several benchmarks. But the gain over its predecessor might be slim, while costs more than double.

Anthropic's new flagship model, Claude Fable 5, scores 64.9 points in the Artificial Analysis Intelligence Index, claiming first place. The gap to the best non-Anthropic model, GPT-5.5, is about five points. Anthropic now holds the top two spots on the leaderboard.

That crown comes at a cost. Fable 5 runs $10 and $50 per million input and output tokens, double Opus 4.8's $5 and $25. A full index run hits $9,940, versus $4,970 for Opus 4.8 at max reasoning. That premium buys a 5.7 percent performance gain. Opus 4.8 and 4.7 already followed the same pattern versus Opus 4.6, with steep price bumps for small gains. Anthropic itself called 4.8's improvement over 4.7 "modest but tangible."

Companies need to weigh carefully which use cases actually justify paying double for about five percent more performance. Benchmark skeptics will note that no test suite fully captures real-world ability. The AA Index at least aggregates ten evaluations, giving it a broader base than any single benchmark.

Depending on the region, the monthly bill for heavy enterprise use could cover the cost for experienced developers. The Artificial Analysis data makes clear that economics is becoming a key factor, as our subscriber special on "Tokeneconomics" explores in depth.

Top scores across most benchmarks

The raw benchmark numbers are nonetheless notable. Fable 5 sets records in five of the ten Intelligence Index benchmarks. On AA-Omniscience, the knowledge and hallucination benchmark, the model hits 40 points, seven more than the previous leader Gemini 3.1 Pro Preview. That lead comes mainly from higher accuracy, not a lower hallucination rate. On hallucinations, the model lands squarely in the middle of the pack.

Artificial Analysis notes a strong link between AA-Omniscience accuracy and model size among open-weight models. That hints Fable 5 may be larger than any previous public Anthropic model.

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Anthropic Claude Fable 5：价格翻倍，性能仅提升5.7%

2026-06-13 01:10·20天前·Matthias Bastian

阅读原文· the-decoder.com

AI 摘要

原文 · 保持原样，未翻译

Anthropic's Claude Fable 5 costs twice as much for 5.7 percent more performance

Claude Fable 5 tops the Artificial Analysis Intelligence Index and sets new highs across several benchmarks. But the gain over its predecessor might be slim, while costs more than double.