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Claude Fable 5.1 (high) vs Grok 4.6 (medium)

Claude Fable 5.1 (high) leads on average score with 7.9 vs 7.8. Grok 4.6 (medium) has the lower benchmark cost at $2.270 vs $3.471. Claude Fable 5.1 (high) is faster at 13.30s vs 74.77s, with pass rates of 85.5% vs 78.3%.

Last updated at: 2026-10-01

Compared models

Rank
#98
Total Output Tokens
40,466
Response Time (avg)
13.30s
Total Cost
$3.471
Rank
#107
Total Output Tokens
266,197
Response Time (avg)
74.77s
Total Cost
$2.270
Recommended model Claude Fable 5.1 (high)

It has the best score here (7.9), while responding about 5.6x faster than Grok 4.6 (medium).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 high Release: 2026-09-02 Grok 4.6 Grok 4.6 medium Release: 2026-08-12
Score 7.9 7.8
Rank #98 #107
Reliability 10.0 10.0
Consistency 9.7 8.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 85.5% 78.3%
Flaky tests 1 4
Total Runs 69 69
Cost per result 18.264 14.187
Total Cost $3.471 $2.270
Input Price $10.000 / 1M $2.000 / 1M
Output Price $50.000 / 1M $6.000 / 1M
Total Input Tokens 144,676 336,351
Output Tokens 8,184 6,180
Reasoning Tokens 32,282 260,017
Response Time (avg) 13.30s 74.77s
Response Time (max) 40.17s 514.35s
Response Time (total) 305.83s 1719.73s
Parameters ~9.5T total (~878B active) ~1.7T total (~170B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#98 Claude Fable 5.1

high
Cost
$0.384
Time
102.5s
Tokens
7,824 tok

#107 SpaceXAI: Grok 4.6

medium
Cost
$0.028
Time
72.1s
Tokens
4,771 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Fable 5.1 8.4 7.4 88.9% 1 13.91s 10,608 520 6,503
Grok 4.6 8.2 7.2 88.9% 1 120.05s 9,579 351 64,226

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