| Claude Opus 4.1anthropic | Anthropic: Claude Fable 5.1 (batch)anthropic | |
|---|---|---|
| Input price | $15 / 1M | $5 / 1M |
| Output price | $75 / 1M | $25 / 1M |
| Context window | 200K tokens | 1M tokens |
| Lifecycle | retired | active |
| Deprecation deadline | — | — |
On input tokens, Claude Opus 4.1 is 200% more expensive than Anthropic: Claude Fable 5.1 (batch).
01 Recent changes: Claude Opus 4.1
| Detected | Change | Status |
|---|---|---|
| 2026-11-06 20:12 UTC | Lifecycle state changed from active to retired | confirmed |
02 Recent changes: Anthropic: Claude Fable 5.1 (batch)
No changes recorded.