Model Comparator

Compare up to four models using the same criteria.

GPT-5.5 (Low)
OpenAI
Claude Sonnet 4.6 (Non-reasoning, High)
Anthropic

Differences only

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

Model Comparator
Metrics	GPT-5.5 (Low) OpenAI	Claude Sonnet 4.6 (Non-reasoning, High) Anthropic
Intelligence	Best: 30.7	30.1
Coding	60.9	Best: 63
Agentic	—	31.8
Speed	Best: 72 t/s	43.1 t/s
TTFT	1.76 s	Best: 1 s
Input · $ / 1M tokens	$5×1.7 relative to the lowest price among the compared models	Best: $3
Output · $ / 1M tokens	$30×2 relative to the lowest price among the compared models	Best: $15
Context window	1M	1M
Reasoning	Yes	No
Open weights	No	No

Intelligence

GPT-5.5 (Low): Best: 30.7
Claude Sonnet 4.6 (Non-reasoning, High): 30.1

Coding

GPT-5.5 (Low): 60.9
Claude Sonnet 4.6 (Non-reasoning, High): Best: 63

Agentic

GPT-5.5 (Low): —
Claude Sonnet 4.6 (Non-reasoning, High): 31.8

Speed

GPT-5.5 (Low): Best: 72 t/s
Claude Sonnet 4.6 (Non-reasoning, High): 43.1 t/s

TTFT

GPT-5.5 (Low): 1.76 s
Claude Sonnet 4.6 (Non-reasoning, High): Best: 1 s

Input · $ / 1M tokens

GPT-5.5 (Low): $5×1.7 relative to the lowest price among the compared models
Claude Sonnet 4.6 (Non-reasoning, High): Best: $3

Output · $ / 1M tokens

GPT-5.5 (Low): $30×2 relative to the lowest price among the compared models
Claude Sonnet 4.6 (Non-reasoning, High): Best: $15

Context window

GPT-5.5 (Low): 1M
Claude Sonnet 4.6 (Non-reasoning, High): 1M

Reasoning

GPT-5.5 (Low): Yes
Claude Sonnet 4.6 (Non-reasoning, High): No

Open weights

GPT-5.5 (Low): No
Claude Sonnet 4.6 (Non-reasoning, High): 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.

GPT-5.5 (Low)30.7 · $11.25
Claude Sonnet 4.6 (Non-reasoning, High)30.1 · $6