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Claude Fable 5.2 (high) vs Claude Opus 5.5 (high)

Claude Opus 5.5 (high) leads on average score with 9.4 vs 8.7. Claude Opus 5.5 (high) has the lower benchmark cost at $2.133 vs $5.083. Claude Fable 5.2 (high) is faster at 14.73s vs 27.55s, with pass rates of 87.0% vs 87.0%.

Last updated at: 2026-11-10

Compared models

Rank
#85
Total Output Tokens
63,226
Response Time (avg)
14.73s
Total Cost
$5.083
Rank
#29
Total Output Tokens
42,782
Response Time (avg)
27.55s
Total Cost
$2.133
Recommended model Claude Opus 5.5 (high)

It has the best score here (9.4), while costing about 2.4x less than Claude Fable 5.2 (high).

Detailed comparison

Metric Claude Fable 5.2 Claude Fable 5.2 high Release: 2026-11-09 Claude Opus 5.5 Claude Opus 5.5 high Release: 2026-09-23
Score 8.7 9.4
Rank #85 #29
Reliability 9.6 10.0
Consistency 9.3 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 87.0% 87.0%
Flaky tests 2 2
Total Runs 69 69
Cost per result 26.752 11.222
Total Cost $5.083 $2.133
Input Price $8.000 / 1M $4.000 / 1M
Output Price $40.000 / 1M $20.000 / 1M
Cache Read Price $0.200 / 1M $0.200 / 1M
Cache Write Price $10.000 / 1M $5.000 / 1M
Total Input Tokens 319,219 319,095
Output Tokens 10,244 10,371
Reasoning Tokens 52,982 32,411
Response Time (avg) 14.73s 27.55s
Response Time (max) 84.72s 95.95s
Response Time (total) 338.82s 633.73s
Parameters ~9.5T total (~878B active) ~5T total (~500B 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.

#85 Claude Fable 5.2

high
Cost
$0.701
Time
204.4s
Tokens
17,664 tok

#29 Claude Opus 5.5

high
Cost
$0.136
Time
75.6s
Tokens
6,934 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 6.0 7.4 55.6% 1 8.21s 10,608 558 4,605
Claude Opus 5.5 10.0 10.0 100.0% 0 13.44s 10,608 584 5,042

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