Model Comparator

Compare up to four models using the same criteria.

Claude Opus 5.5 (Low, Default Fallback)
Anthropic
Claude Opus 4.8 (batch)
Anthropic

Differences only

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

Model Comparator
Metrics	Claude Opus 5.5 (Low, Default Fallback) Anthropic	Claude Opus 4.8 (batch) Anthropic
Intelligence	Best: 42.3	41.8
Coding	—	74.3
Agentic	—	41.9
Speed	77.2 t/s	—
TTFT	10.5 s	—
Input · $ / 1M tokens	$4	—
Output · $ / 1M tokens	$20	—
Context window	1M	1M
Reasoning	Yes	Yes
Open weights	No	—
Cost / task	$0.551	—

Intelligence

Claude Opus 5.5 (Low, Default Fallback): Best: 42.3
Claude Opus 4.8 (batch): 41.8

Coding

Claude Opus 5.5 (Low, Default Fallback): —
Claude Opus 4.8 (batch): 74.3

Agentic

Claude Opus 5.5 (Low, Default Fallback): —
Claude Opus 4.8 (batch): 41.9

Speed

Claude Opus 5.5 (Low, Default Fallback): 77.2 t/s
Claude Opus 4.8 (batch): —

TTFT

Claude Opus 5.5 (Low, Default Fallback): 10.5 s
Claude Opus 4.8 (batch): —

Input · $ / 1M tokens

Claude Opus 5.5 (Low, Default Fallback): $4
Claude Opus 4.8 (batch): —

Output · $ / 1M tokens

Claude Opus 5.5 (Low, Default Fallback): $20
Claude Opus 4.8 (batch): —

Context window

Claude Opus 5.5 (Low, Default Fallback): 1M
Claude Opus 4.8 (batch): 1M

Reasoning

Claude Opus 5.5 (Low, Default Fallback): Yes
Claude Opus 4.8 (batch): Yes

Open weights

Claude Opus 5.5 (Low, Default Fallback): No
Claude Opus 4.8 (batch): —

Cost / task

Claude Opus 5.5 (Low, Default Fallback): $0.551
Claude Opus 4.8 (batch): —

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.

Claude Opus 5.5 (Low, Default Fallback)42.3 · $0.551

Not plotted for lack of data on these axes: Claude Opus 4.8 (batch).