Model Comparator

Compare up to four models using the same criteria.

GPT-4o (March 2025, chatgpt-4o-latest)
OpenAI
gpt-oss-20b (High)
OpenAI

Differences only

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

Model Comparator
Metrics	GPT-4o (March 2025, chatgpt-4o-latest) OpenAI	gpt-oss-20b (High) OpenAI
Intelligence	9	9
Coding	—	20.7
Math	25.7	Best: 89.3
Agentic	—	1.2
Speed	—	220 t/s
TTFT	—	0.72 s
Input · $ / 1M tokens	—	$0.070
Output · $ / 1M tokens	—	$0.18
Context window	128K	Best: 131K
Reasoning	No	Yes
Open weights	No	Yes
Cost / task	—	$0.0125

Intelligence

GPT-4o (March 2025, chatgpt-4o-latest): 9
gpt-oss-20b (High): 9

Coding

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): 20.7

Math

GPT-4o (March 2025, chatgpt-4o-latest): 25.7
gpt-oss-20b (High): Best: 89.3

Agentic

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): 1.2

Speed

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): 220 t/s

TTFT

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): 0.72 s

Input · $ / 1M tokens

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): $0.070

Output · $ / 1M tokens

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): $0.18

Context window

GPT-4o (March 2025, chatgpt-4o-latest): 128K
gpt-oss-20b (High): Best: 131K

Reasoning

GPT-4o (March 2025, chatgpt-4o-latest): No
gpt-oss-20b (High): Yes

Open weights

GPT-4o (March 2025, chatgpt-4o-latest): No
gpt-oss-20b (High): Yes

Cost / task

GPT-4o (March 2025, chatgpt-4o-latest): —
gpt-oss-20b (High): $0.0125

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-oss-20b (High)9 · $0.0125

Not plotted for lack of data on these axes: GPT-4o (March 2025, chatgpt-4o-latest).