Claude Fable 5.1 vs Gemini 4 Argon

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

Higher intelligence
Claude Fable 5.1
Anthropic
53.4
Intelligence Index
View Claude Fable 5.1
Gemini 4 Argon
Google
52.6
Intelligence Index
View Gemini 4 Argon

Capability profile

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

Head to head

Claude Fable 5.1
Gemini 4 Argon
Intelligence
53.4
52.6
Coding
81.6
—
Math
—
—
Context window
1,000,000
1,048,576
Output price
$50/1M
$10/1M
Input price
$10/1M
$2/1M
Speed (t/s)
66
0
Knowledge cutoff
2026-06
2026-03
Open weights
No
No
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