Claude Fable 5: benchmark results
Anthropic Claude Fable 5, the generally available Claude 5-family frontier model for high-end reasoning, coding, and agentic tasks. Provider: Anthropic. Released 2026-06-09. Access: API.
Unified ELO 1773 ± 1, rank #8 of 1392 rated models, from 269 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| ActiveVision (Agents) | 50.6 | Accuracy (%) | 100 |
| Appwrite Arena (Without Skills) | 97.7 | Overall Score (%) | 100 |
| BrowseComp (Fable/Mythos Multi-Agent) | 93.3 | Score (%) | 100 |
| CAIS Risk Index | 27.3 | Risk Index (self-reported) | 100 |
| Chatbot Arena (Text - Creative Writing) | 1504 | Arena Score | 100 |
| Chatbot Arena (Text - French) | 1527 | Arena Score | 100 |
| Chatbot Arena (Text - Japanese) | 1526 | Arena Score | 100 |
| Chatbot Arena (Text - Russian) | 1521 | Arena Score | 100 |
| Chatbot Arena (Text - Spanish) | 1518 | Arena Score | 100 |
| Chatbot Arena (Text) | 1507 | Elo | 100 |
| Chatbot Arena (Vision - Diagram) | 1362 | Arena Score | 100 |
| Chatbot Arena (Vision - English) | 1309 | Arena Score | 100 |
Interactive version: theaggregate.ai/model?slug=claude-fable-5 · How It Works · Data refreshed daily, snapshot 2026-09-05.