Claude Opus 5.5 vs Claude Fable 5.1
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Claude Opus 5.5
B
Claude Fable 5.1
- ProviderAnthropicAnthropic
- Rank#1Higher rank#7
- TierSS
- Score94.5Higher score91.1
- Price$4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plansAPI $10 input / $50 output per 1M tokens; Claude Pro and Max via usage credits, Team and Enterprise
- TaglineAnthropic's current Opus model (September 2026), which Anthropic says performs at the level of Claude Fable 5.1 on most work at a lower price than Opus 5.Anthropic's Fable 5 point release, tied at the top of the Artificial Analysis Intelligence Index.
| Attribute | Claude Opus 5.5 | Claude Fable 5.1 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Rank | #1Higher rank | #7 |
| Tier | S | S |
| Score | 94.5Higher score | 91.1 |
| Price | $4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plans | API $10 input / $50 output per 1M tokens; Claude Pro and Max via usage credits, Team and Enterprise |
| Tagline | Anthropic's current Opus model (September 2026), which Anthropic says performs at the level of Claude Fable 5.1 on most work at a lower price than Opus 5. | Anthropic's Fable 5 point release, tied at the top of the Artificial Analysis Intelligence Index. |