Model Comparator

Compare up to four models using the same criteria.

Grok 4.6 (Medium)
SpaceXSI
Claude Opus 4.8 (batch)
Anthropic

Differences only

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

Model Comparator
Metrics	Grok 4.6 (Medium) SpaceXSI	Claude Opus 4.8 (batch) Anthropic
Intelligence	Best: 42.8	41.8
Coding	Best: 74.4	74.3
Agentic	Best: 50.6	41.9
Speed	64.1 t/s	—
TTFT	32.2 s	—
Input · $ / 1M tokens	Best: $2	$2.50×1.3 relative to the lowest price among the compared models
Output · $ / 1M tokens	Best: $6	$12.50×2.1 relative to the lowest price among the compared models
Context window	1M	1M
Reasoning	Yes	Yes
Open weights	No	—
Cost / task	$1.14	—

Intelligence

Grok 4.6 (Medium): Best: 42.8
Claude Opus 4.8 (batch): 41.8

Coding

Grok 4.6 (Medium): Best: 74.4
Claude Opus 4.8 (batch): 74.3

Agentic

Grok 4.6 (Medium): Best: 50.6
Claude Opus 4.8 (batch): 41.9

Speed

Grok 4.6 (Medium): 64.1 t/s
Claude Opus 4.8 (batch): —

TTFT

Grok 4.6 (Medium): 32.2 s
Claude Opus 4.8 (batch): —

Input · $ / 1M tokens

Grok 4.6 (Medium): Best: $2
Claude Opus 4.8 (batch): $2.50×1.3 relative to the lowest price among the compared models

Output · $ / 1M tokens

Grok 4.6 (Medium): Best: $6
Claude Opus 4.8 (batch): $12.50×2.1 relative to the lowest price among the compared models

Context window

Grok 4.6 (Medium): 1M
Claude Opus 4.8 (batch): 1M

Reasoning

Grok 4.6 (Medium): Yes
Claude Opus 4.8 (batch): Yes

Open weights

Grok 4.6 (Medium): No
Claude Opus 4.8 (batch): —

Cost / task

Grok 4.6 (Medium): $1.14
Claude Opus 4.8 (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.

Grok 4.6 (Medium)42.8 · $3
Claude Opus 4.8 (batch)41.8 · $5