# Claude Fable 5 release · 2026-06-09 · snapshot 2026-10-26

Creator: Anthropic · 1 effort levels

| Effort level | Input modalities | Intelligence | Total cost | E2E | On the frontier today | ID |
|---|---|---|---|---|---|---|
| Claude Fable 5 (Max, Opus 4.8 Fallback) | Text, Image | 49.60 | $11161 | 98.0s | no | `claude-fable-5` |

## Launch day (2026-06-09)

- Reached the frontier: 1 of 1
- Impact (intelligence × log-cost hypervolume gained): 1.98
- Rank: #18 of 46 releases this past year


> Metrics snapshot: 2026-10-26T09:34:16Z. Intelligence index version: unknown. Release timeline, frontier age, release impact and shakeup cards are reconstructions using one selected snapshot's metrics, not a record of what was known at release. Scores, benchmark cost and derived value may change when the index methodology changes. Source documentation advertises v4.3.2; API correspondence is unverified.