Claude Opus 5 vs GPT-6 Sol

Which is the better AI model in 2026? Here's how they compare.

Claude Opus 5
Anthropic
44.2
Intelligence Index
View Claude Opus 5
GPT-6 Sol
OpenAI
44.2
Intelligence Index
View GPT-6 Sol

Domain intelligence profile

Artificial Analysis Intelligence Index by domain (0–100). Missing dimensions show as 0.

Head to head

Claude Opus 5
GPT-6 Sol
Intelligence
44.2
44.2
Engineering
51.3
48.9
Legal
50.9
46.3
Finance
49.7
47.5
Healthcare
47.1
45.1
Economics
50.4
47.7
Strategy & Ops
53.7
52.1
Context window
1,000,000
1,050,000
Output price
$25/1M
$10/1M
Input price
$5/1M
$2/1M
Speed (t/s)
50
127
Knowledge cutoff
2026-05
2026-04-20
Open weights
No
No
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