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Claude Fable 5.2 (xhigh) vs Gemini 3.8 Flash (high)

Gemini 3.8 Flash (high) leads on average score with 9.9 vs 9.6. Gemini 3.8 Flash (high) has the lower benchmark cost at $1.927 vs $10.319. Claude Fable 5.2 (xhigh) is faster at 33.44s vs 40.60s, with pass rates of 94.2% vs 98.6%.

Last updated at: 2026-11-10

Compared models

Rank
#13
Total Output Tokens
188,726
Response Time (avg)
33.44s
Total Cost
$10.319
Rank
#2
Total Output Tokens
446,728
Response Time (avg)
40.60s
Total Cost
$1.927
Recommended model Gemini 3.8 Flash (high)

It has the best score here (9.9), while costing about 5.4x less than Claude Fable 5.2 (xhigh).

Detailed comparison

Metric Claude Fable 5.2 Claude Fable 5.2 xhigh Release: 2026-11-09 Gemini 3.8 Flash Gemini 3.8 Flash high Release: 2026-09-02
Score 9.6 9.9
Rank #13 #2
Reliability 9.2 10.0
Consistency 9.6 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 94.2% 98.6%
Flaky tests 1 1
Total Runs 69 69
Cost per result 49.137 8.756
Total Cost $10.319 $1.927
Input Price $8.000 / 1M $0.750 / 1M
Output Price $40.000 / 1M $3.750 / 1M
Cache Read Price $0.200 / 1M $0.075 / 1M
Cache Write Price $10.000 / 1M $0.042 / 1M
Total Input Tokens 346,216 334,568
Output Tokens 10,245 11,394
Reasoning Tokens 178,481 435,334
Response Time (avg) 33.44s 40.60s
Response Time (max) 440.05s 177.08s
Response Time (total) 769.21s 933.73s
Parameters ~9.5T total (~878B active) ~500B total (~20B 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.

#13 Claude Fable 5.2

xhigh
Reached the allocated time limit (600 seconds) without receiving showcase output.
Cost
$0.000
Time
600.0s
Tokens
0 tok

#2 Gemini 3.8 Flash

high
Cost
$0.077
Time
129.1s
Tokens
20,373 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 5.2 10.0 10.0 100.0% 0 12.97s 10,608 553 9,868
Gemini 3.8 Flash 10.0 10.0 100.0% 0 29.30s 8,118 462 50,196

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