Claude Fable 5 vs GPT-6 Sol

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

Higher intelligence
Claude Fable 5
Anthropic
49.6
Intelligence Index
View Claude Fable 5
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 Fable 5
GPT-6 Sol
Intelligence
49.6
47.5
Coding
76.5
Math
Context window
1,000,000
1,050,000
Output price
$50/1M
$10/1M
Input price
$10/1M
$2/1M
Speed (t/s)
0
116
Knowledge cutoff
2026-04-20
Open weights
No
No
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