Claude Opus 5 vs GPT-6 Astra
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
GPT-6 Astra
Intelligence
50.8
52.7
Coding
78
76.9
Math
—
—
Context window
1,000,000
1,050,000
Output price
$25/1M
$50/1M
Input price
$5/1M
$10/1M
Speed (t/s)
0
61
Knowledge cutoff
2026-05
2026-04-30
Open weights
No
No
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