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Claude Haiku 5.5 (high) vs GPT-6 Luna (medium)

The average score is effectively tied at 8.3 vs 8.3. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $0.088. Claude Haiku 5.5 (high) is faster at 10.41s vs 18.07s, with pass rates of 76.8% vs 73.9%.

Last updated at: 2026-10-07

Compared models

Rank
#80
Total Output Tokens
105,640
Response Time (avg)
10.41s
Total Cost
$0.088
Rank
#83
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Recommended model Claude Haiku 5.5 (high)

It has the best score here (8.3), while responding about 1.7x faster than GPT-6 Luna (medium).

Detailed comparison

Metric Claude Haiku 5.5 Claude Haiku 5.5 high Release: 2026-10-07 GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23
Score 8.3 8.3
Rank #80 #83
Reliability 10.0 10.0
Consistency 8.5 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 76.8% 73.9%
Flaky tests 4 3
Total Runs 69 69
Cost per result 0.584 0.313
Total Cost $0.088 $0.047
Input Price $0.100 / 1M $0.100 / 1M
Output Price $0.500 / 1M $0.500 / 1M
Cache Read Price $0.010 / 1M $0.010 / 1M
Cache Write Price $0.125 / 1M $0.125 / 1M
Total Input Tokens 346,451 203,193
Output Tokens 10,136 5,751
Reasoning Tokens 95,504 47,410
Response Time (avg) 10.41s 18.07s
Response Time (max) 52.61s 66.44s
Response Time (total) 239.38s 415.53s
Parameters ~50B ~400B total (~17B 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.

#80 Claude Haiku 5.5

high
Cost
$0.003
Time
28.0s
Tokens
5,775 tok

#83 GPT-6 Luna

medium
Cost
$0.002
Time
23.6s
Tokens
2,966 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 6.0 7.2 55.6% 1 9.54s 10,608 503 16,741
GPT-6 Luna 6.6 4.6 77.8% 2 23.63s 7,302 438 10,222

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