Model Comparator

Compare up to four models using the same criteria.

Claude Haiku 5.5 (Medium)
Anthropic
GPT-5 Codex (High)
OpenAI

Differences only

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

Model Comparator
Metrics	Claude Haiku 5.5 (Medium) Anthropic	GPT-5 Codex (High) OpenAI
Intelligence	24.6	Best: 24.9
Math	—	98.7
Speed	153 t/s	Best: 169 t/s
TTFT	13.8 s	Best: 12.2 s
Input · $ / 1M tokens	Best: $0.10	$1.25×12.5 relative to the lowest price among the compared models
Output · $ / 1M tokens	Best: $0.50	$10×20 relative to the lowest price among the compared models
Context window	1M	1M
Reasoning	Yes	Yes
Open weights	No	No
Cost / task	$0.0918	—

Intelligence

Claude Haiku 5.5 (Medium): 24.6
GPT-5 Codex (High): Best: 24.9

Math

Claude Haiku 5.5 (Medium): —
GPT-5 Codex (High): 98.7

Speed

Claude Haiku 5.5 (Medium): 153 t/s
GPT-5 Codex (High): Best: 169 t/s

TTFT

Claude Haiku 5.5 (Medium): 13.8 s
GPT-5 Codex (High): Best: 12.2 s

Input · $ / 1M tokens

Claude Haiku 5.5 (Medium): Best: $0.10
GPT-5 Codex (High): $1.25×12.5 relative to the lowest price among the compared models

Output · $ / 1M tokens

Claude Haiku 5.5 (Medium): Best: $0.50
GPT-5 Codex (High): $10×20 relative to the lowest price among the compared models

Context window

Claude Haiku 5.5 (Medium): 1M
GPT-5 Codex (High): 1M

Reasoning

Claude Haiku 5.5 (Medium): Yes
GPT-5 Codex (High): Yes

Open weights

Claude Haiku 5.5 (Medium): No
GPT-5 Codex (High): No

Cost / task

Claude Haiku 5.5 (Medium): $0.0918
GPT-5 Codex (High): —

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 Haiku 5.5 (Medium)24.6 · $0.20
GPT-5 Codex (High)24.9 · $3.44