Claude Opus 4.8 vs GPT-6 Sol

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

Claude Opus 4.8
Anthropic
41.8
Intelligence Index
View Claude Opus 4.8
Higher intelligence
GPT-6 Sol
OpenAI
47.5
Intelligence Index
View GPT-6 Sol

Capability profile

Artificial Analysis indices (0–100). Missing dimensions show as 0.

Head to head

Claude Opus 4.8
GPT-6 Sol
Intelligence
41.8
47.5
Coding
74.3
Math
Context window
1,000,000
1,050,000
Output price
$25/1M
$10/1M
Input price
$5/1M
$2/1M
Speed (t/s)
0
116
Knowledge cutoff
2026-01
2026-04-20
Open weights
No
No
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