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

The average score is effectively tied at 7.3 vs 7.3. Grok 4.7 (medium) has the lower benchmark cost at $2.938 vs $3.197. Claude Fable 5.1 (medium) is faster at 11.87s vs 117.65s, with pass rates of 78.3% vs 78.3%.

Last updated at: 2026-10-16

Compared models

Rank
#159
Total Output Tokens
32,506
Response Time (avg)
11.87s
Total Cost
$3.197
Rank
#160
Total Output Tokens
474,745
Response Time (avg)
117.65s
Total Cost
$2.938
Recommended model Claude Fable 5.1 (medium)

It has the best score here (7.3), while responding about 9.9x faster than Grok 4.7 (medium).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 medium Release: 2026-09-02 Grok 4.7 Grok 4.7 medium Release: 2026-09-21
Score 7.3 7.3
Rank #159 #160
Reliability 10.0 9.8
Consistency 7.9 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 78.3% 78.3%
Flaky tests 6 5
Total Runs 69 69
Cost per result 21.312 19.582
Total Cost $3.197 $2.938
Input Price $10.000 / 1M $2.000 / 1M
Output Price $50.000 / 1M $6.000 / 1M
Cache Read Price $0.250 / 1M $0.500 / 1M
Cache Write Price $12.500 / 1M N/A
Total Input Tokens 157,142 326,066
Output Tokens 8,149 5,726
Reasoning Tokens 24,357 469,019
Response Time (avg) 11.87s 117.65s
Response Time (max) 36.59s 660.89s
Response Time (total) 272.91s 2706.03s
Parameters ~9.5T total (~878B active) ~1.7T total (~170B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#159 Claude Fable 5.1

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

#160 SpaceXAI: Grok 4.7

medium
Cost
$0.047
Time
132.3s
Tokens
9,954 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 6.6 4.6 77.8% 2 312.17s 10,266 349 172,347

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