GPT-5.6 Terra vs Grok 4.6
Which is the better AI model in 2026? Here's how they compare.
Capability profile
Artificial Analysis indices (0–100). Missing dimensions show as 0.
Head to head
GPT-5.6 Terra
Grok 4.6
Intelligence
42.1
44.3
Coding
76.7
76.8
Math
—
—
Context window
1,050,000
500,000
Output price
$12/1M
$6/1M
Input price
$2/1M
$2/1M
Speed (t/s)
98
81
Knowledge cutoff
2026-02-16
2026-02-01
Open weights
No
No
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