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Claude Fable 5.1 (low) vs Gemini 3.5 Flash

Claude Fable 5.1 (low) leads on average score with 6.9 vs 6.9. Gemini 3.5 Flash has the lower benchmark cost at $1.093 vs $2.565. Gemini 3.5 Flash is faster at 10.18s vs 10.33s, with pass rates of 56.1% vs 69.7%.

Last updated at: 2026-09-02

Rank
#130
Total Output Tokens
24,375
Response Time (avg)
10.33s
Total Cost
$2.565
Rank
#133
Total Output Tokens
119,100
Response Time (avg)
10.18s
Total Cost
$1.093
Recommended model Gemini 3.5 Flash

Its score stays close to the best score here (6.9 vs 6.9), while costing about 2.3x less than Claude Fable 5.1 (low).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 low Release: 2026-09-02 Gemini 3.5 Flash Gemini 3.5 Flash none Release: 2026-05-19
Score 6.9 6.9
Rank #130 #133
Reliability 10.0 10.0
Consistency 9.2 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 56.1% 69.7%
Flaky tests 2 3
Total Runs 66 66
Cost per result 23.315 7.805
Total Cost $2.565 $1.093
Input Price $10.000 / 1M $1.500 / 1M
Output Price $50.000 / 1M $9.000 / 1M
Total Input Tokens 134,582 13,852
Output Tokens 8,955 119,100
Reasoning Tokens 15,420 0
Response Time (avg) 10.33s 10.18s
Response Time (max) 33.10s 64.36s
Response Time (total) 227.37s 183.29s
Parameters ~9.5T total (~878B active) ~500B total (~20B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#130 Claude Fable 5.1

low
Cost
$0.126
Time
28.5s
Tokens
2,652 tok

#133 Gemini 3.5 Flash

none
Cost
$0.225
Time
125.5s
Tokens
25,004 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 3.4 10.0 0.0% 0 6.75s 10,608 1,753 0
Gemini 3.5 Flash 8.8 7.8 88.9% 1 34.69s 8,122 75,927 0

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