Model Comparator

Compare up to four models using the same criteria.

2 models compared

✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.

Intelligence

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: 56
Claude Fable 5.1 (Max, Default Fallback)
53.4

Coding

Claude Opus 5.5 (Xhigh, Default Fallback)
—
Claude Fable 5.1 (Max, Default Fallback)
81.6

Agentic

Claude Opus 5.5 (Xhigh, Default Fallback)
—
Claude Fable 5.1 (Max, Default Fallback)
57.9

Cyber Index

Claude Opus 5.5 (Xhigh, Default Fallback)
—
Claude Fable 5.1 (Max, Default Fallback)
25.0%

Speed

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: 75.7 t/s
Claude Fable 5.1 (Max, Default Fallback)
71.1 t/s

TTFT

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: 145 s
Claude Fable 5.1 (Max, Default Fallback)
262 s

Input · $ / 1M tokens

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: $4
Claude Fable 5.1 (Max, Default Fallback)
$10×2.5 relative to the lowest price among the compared models

Output · $ / 1M tokens

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: $20
Claude Fable 5.1 (Max, Default Fallback)
$50×2.5 relative to the lowest price among the compared models

Context window

Claude Opus 5.5 (Xhigh, Default Fallback)
1M
Claude Fable 5.1 (Max, Default Fallback)
1M

Reasoning

Claude Opus 5.5 (Xhigh, Default Fallback)
Yes
Claude Fable 5.1 (Max, Default Fallback)
Yes

Open weights

Claude Opus 5.5 (Xhigh, Default Fallback)
No
Claude Fable 5.1 (Max, Default Fallback)
No

Cost / task

Claude Opus 5.5 (Xhigh, Default Fallback)
Best: $3.46
Claude Fable 5.1 (Max, Default Fallback)
$7.63×2.2 relative to the lowest price among the compared models

Each reasoning level remains a separate configuration.

Score and cost

Each line joins the reasoning levels of a compared model; the large point marks the configuration in the table. The top-right corner holds the best score for the lowest cost. Select another point to compare that level.

Intelligence Indexmost efficient ↗Cost per task
  • Claude Opus 5.5 (Xhigh, Default Fallback)56 · $3.46
  • Claude Fable 5.1 (Max, Default Fallback)53.4 · $7.63

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