Claude Fable 5 vs Claude Opus 4.8
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 Fable 5
Claude Opus 4.8
Intelligence
49.6
41.8
Coding
76.5
74.3
Math
—
—
Context window
1,000,000
1,000,000
Output price
$50/1M
$25/1M
Input price
$10/1M
$5/1M
Speed (t/s)
0
0
Knowledge cutoff
—
2026-01
Open weights
No
No
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