Model Comparator

Compare up to four models using the same criteria.

GPT-5.3 Codex (Xhigh)
OpenAI
Claude Opus 4.6 (batch)
Anthropic

Differences only

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

Model Comparator
Metrics	GPT-5.3 Codex (Xhigh) OpenAI	Claude Opus 4.6 (batch) Anthropic
Intelligence	Best: 32.5	31.9
Speed	98.5 t/s	—
TTFT	71.5 s	—
Input · $ / 1M tokens	$1.75	—
Output · $ / 1M tokens	$14	—
Context window	400K	Best: 1M
Reasoning	Yes	Yes
Open weights	No	—

Intelligence

GPT-5.3 Codex (Xhigh): Best: 32.5
Claude Opus 4.6 (batch): 31.9

Speed

GPT-5.3 Codex (Xhigh): 98.5 t/s
Claude Opus 4.6 (batch): —

TTFT

GPT-5.3 Codex (Xhigh): 71.5 s
Claude Opus 4.6 (batch): —

Input · $ / 1M tokens

GPT-5.3 Codex (Xhigh): $1.75
Claude Opus 4.6 (batch): —

Output · $ / 1M tokens

GPT-5.3 Codex (Xhigh): $14
Claude Opus 4.6 (batch): —

Context window

GPT-5.3 Codex (Xhigh): 400K
Claude Opus 4.6 (batch): Best: 1M

Reasoning

GPT-5.3 Codex (Xhigh): Yes
Claude Opus 4.6 (batch): Yes

Open weights

GPT-5.3 Codex (Xhigh): No
Claude Opus 4.6 (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.

GPT-5.3 Codex (Xhigh)32.5 · $4.81

Not plotted for lack of data on these axes: Claude Opus 4.6 (batch).