Claude Opus 5.5 vs Gemini 4 Argon
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
Claude Opus 5.5
Gemini 4 Argon
Intelligence
57.6
52.6
Coding
—
—
Math
—
—
Context window
1,000,000
1,048,576
Output price
$20/1M
$10/1M
Input price
$4/1M
$2/1M
Speed (t/s)
96
0
Knowledge cutoff
2026-06
2026-03
Open weights
No
No
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