Model Comparator

Compare up to four models using the same criteria.

Claude 4 Opus (Reasoning)
Anthropic
Claude 4.5 Sonnet (Non-reasoning)
Anthropic

Differences only

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

Model Comparator
Metrics	Claude 4 Opus (Reasoning) Anthropic	Claude 4.5 Sonnet (Non-reasoning) Anthropic
Intelligence	20.6	Best: 20.7
Coding	—	52.1
Math	Best: 73.3	37
Agentic	—	15.8
Speed	—	39.3 t/s
TTFT	—	1.02 s
Input · $ / 1M tokens	$15×5 relative to the lowest price among the compared models	Best: $3
Output · $ / 1M tokens	$75×5 relative to the lowest price among the compared models	Best: $15
Context window	1M	1M
Reasoning	Yes	No
Open weights	No	No

Intelligence

Claude 4 Opus (Reasoning): 20.6
Claude 4.5 Sonnet (Non-reasoning): Best: 20.7

Coding

Claude 4 Opus (Reasoning): —
Claude 4.5 Sonnet (Non-reasoning): 52.1

Math

Claude 4 Opus (Reasoning): Best: 73.3
Claude 4.5 Sonnet (Non-reasoning): 37

Agentic

Claude 4 Opus (Reasoning): —
Claude 4.5 Sonnet (Non-reasoning): 15.8

Speed

Claude 4 Opus (Reasoning): —
Claude 4.5 Sonnet (Non-reasoning): 39.3 t/s

TTFT

Claude 4 Opus (Reasoning): —
Claude 4.5 Sonnet (Non-reasoning): 1.02 s

Input · $ / 1M tokens

Claude 4 Opus (Reasoning): $15×5 relative to the lowest price among the compared models
Claude 4.5 Sonnet (Non-reasoning): Best: $3

Output · $ / 1M tokens

Claude 4 Opus (Reasoning): $75×5 relative to the lowest price among the compared models
Claude 4.5 Sonnet (Non-reasoning): Best: $15

Context window

Claude 4 Opus (Reasoning): 1M
Claude 4.5 Sonnet (Non-reasoning): 1M

Reasoning

Claude 4 Opus (Reasoning): Yes
Claude 4.5 Sonnet (Non-reasoning): No

Open weights

Claude 4 Opus (Reasoning): No
Claude 4.5 Sonnet (Non-reasoning): No

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 4 Opus (Reasoning)20.6 · $30
Claude 4.5 Sonnet (Non-reasoning)20.7 · $6