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Claude Haiku 5.5 (low) vs Claude Sonnet 5.5 (low)

Claude Haiku 5.5 (low) leads on average score with 8.6 vs 6.9. Claude Haiku 5.5 (low) has the lower benchmark cost at $0.061 vs $0.909. Claude Sonnet 5.5 (low) is faster at 7.46s vs 7.51s, with pass rates of 76.8% vs 46.4%.

Last updated at: 2026-10-19

Compared models

Rank
#75
Total Output Tokens
61,650
Response Time (avg)
7.51s
Total Cost
$0.061
Rank
#199
Total Output Tokens
32,443
Response Time (avg)
7.46s
Total Cost
$0.909
Recommended model Claude Haiku 5.5 (low)

It has the best score here (8.6), while costing about 15.0x less than Claude Sonnet 5.5 (low).

Detailed comparison

Metric Claude Haiku 5.5 Claude Haiku 5.5 low Release: 2026-10-07 Claude Sonnet 5.5 Claude Sonnet 5.5 low Release: 2026-09-29
Score 8.6 6.9
Rank #75 #199
Reliability 10.0 10.0
Consistency 8.9 9.4
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 76.8% 46.4%
Flaky tests 3 2
Total Runs 69 69
Cost per result 0.378 9.082
Total Cost $0.061 $0.909
Input Price $0.100 / 1M $2.000 / 1M
Output Price $0.500 / 1M $10.000 / 1M
Cache Read Price $0.010 / 1M $0.200 / 1M
Cache Write Price $0.125 / 1M $2.500 / 1M
Total Input Tokens 296,301 291,853
Output Tokens 10,672 24,116
Reasoning Tokens 50,978 8,327
Response Time (avg) 7.51s 7.46s
Response Time (max) 44.43s 46.61s
Response Time (total) 172.74s 171.47s
Parameters ~50B ~1T total (~100B 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.

#75 Claude Haiku 5.5

low
Cost
$0.001
Time
7.4s
Tokens
1,851 tok

#199 Claude Sonnet 5.5

low
Cost
$0.020
Time
15.3s
Tokens
2,077 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 Haiku 5.5 7.9 7.5 77.8% 1 7.30s 10,608 531 11,618
Claude Sonnet 5.5 3.2 9.7 0.0% 0 5.81s 10,608 5,903 0

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