Compare models
Pick two to four models. No markup on model usage: you pay the provider's list price.
| Attribute |   Claude Fable 5.1 | Claude Opus 5.5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Model id | anthropic/claude-fable-5-1 | anthropic/claude-opus-5-5 |
| Status | Available via Safeguard | Available via Safeguard |
| Input / 1M tokens | $10 | $4 |
| Output / 1M tokens | $50 | $20 |
| Price notes | Base price, full 1M context at standard rate. Cache hits $0.25/1M. Batch 50% off. US-only inference 1.1x. | Base price, full 1M context at standard rate. Cache hits $0.20/1M. Batch 50% off. US-only inference 1.1x. |
| Context | 1M | 1M |
| Parameters | Not published | Not published |
| Max output | 128,000 tokens | 128,000 tokens |
| Modality | Text and image | Text and image |
| Weights | Closed | Closed |
| Zero data retention | Not offered | Available |
| Prompts go to | Anthropic (global routing by default) | Anthropic (global routing by default) |
| Retention | Not used for model training without express permission. Claude Fable 5.1 is a Covered Model that requires 30-day data retention and is not available under ZDR unless Anthropic expressly authorizes it | Not used for model training without express permission, per Anthropic's API retention doc, conversation content is not retained by default except for Covered Models that require 30-day retention, flagged content and legal holds can be kept longer |
| Region | Global by default, US-only inference via inference_geo at 1.1x pricing (Claude 4.6 and later) | Global by default, US-only inference via inference_geo at 1.1x pricing (Claude 4.6 and later) |
| Price checked | 2026-10-08 | 2026-10-08 |
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