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Claude Fable 5.1 (medium) vs Grok 4.7 (low)

Grok 4.7 (low) leads on average score with 7.4 vs 7.3. Grok 4.7 (low) has the lower benchmark cost at $2.263 vs $3.197. Claude Fable 5.1 (medium) is faster at 11.87s vs 63.19s, with pass rates of 78.3% vs 73.9%.

Last updated at: 2026-10-01

Compared models

Rank
#133
Total Output Tokens
32,506
Response Time (avg)
11.87s
Total Cost
$3.197
Rank
#127
Total Output Tokens
255,329
Response Time (avg)
63.19s
Total Cost
$2.263
Recommended model Claude Fable 5.1 (medium)

Its score stays close to the best score here (7.3 vs 7.4), while responding about 5.3x faster than Grok 4.7 (low).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 medium Release: 2026-09-02 Grok 4.7 Grok 4.7 low Release: 2026-09-21
Score 7.3 7.4
Rank #133 #127
Reliability 10.0 10.0
Consistency 7.9 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 78.3% 73.9%
Flaky tests 6 5
Total Runs 69 69
Cost per result 21.312 13.804
Total Cost $3.197 $2.263
Input Price $10.000 / 1M $2.000 / 1M
Output Price $50.000 / 1M $6.000 / 1M
Total Input Tokens 157,142 365,119
Output Tokens 8,149 8,118
Reasoning Tokens 24,357 247,211
Response Time (avg) 11.87s 63.19s
Response Time (max) 36.59s 389.63s
Response Time (total) 272.91s 1453.28s
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.

#133 Claude Fable 5.1

medium
Cost
$0.244
Time
65.9s
Tokens
5,025 tok

#127 SpaceXAI: Grok 4.7

low
Cost
$0.007
Time
15.2s
Tokens
1,537 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 7.0 5.0 77.8% 2 10.99s 10,608 525 4,376
Grok 4.7 8.4 7.4 88.9% 1 189.08s 9,579 346 99,053

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