Claude Haiku 5.5 (low) vs Claude Sonnet 5.5 (xhigh)
The average score is effectively tied at 8.6 vs 8.6. Claude Haiku 5.5 (low) has the lower benchmark cost at $0.061 vs $1.516. Claude Haiku 5.5 (low) is faster at 7.51s vs 14.98s, with pass rates of 76.8% vs 79.7%.
Last updated at:
2026-11-13
Compared models
Rank
#104
Total Output Tokens
61,650
Response Time (avg)
7.51s
Total Cost
$0.061
Rank
#101
Total Output Tokens
83,041
Response Time (avg)
14.98s
Total Cost
$1.516
Recommended modelClaude Haiku 5.5 (low)
It has the best score here (8.6), while costing about 25.1x less than Claude Sonnet 5.5 (xhigh).
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)44.43sResponse Time (max)44.43sResponse Time (total)44.43sA test is fully passed only if every run passed for that test.…
44.43sResponse Time (avg)…
153,966Total Input Tokens…
2,991Output Tokens…
3,811Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)54.92sResponse Time (max)54.92sResponse Time (total)54.92sA test is fully passed only if every run passed for that test.…
8.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.9Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
91.7%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)2.16sResponse Time (max)3.03sResponse Time (total)8.62sA test is fully passed only if every run passed for that test.…
2.16sResponse Time (avg)…
858Total Input Tokens…
483Output Tokens…
1,480Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.21sResponse Time (max)5.12sResponse Time (total)16.83sA test is fully passed only if every run passed for that test.…
7.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.5Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
77.8%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Did not follow instructions: 1Response Time (avg)7.30sResponse Time (max)8.92sResponse Time (total)21.89sA test is fully passed only if every run passed for that test.…
7.30sResponse Time (avg)…
10,608Total Input Tokens…
531Output Tokens…
11,618Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
8.2Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
88.9%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Extra formatting: 1Response Time (avg)11.90sResponse Time (max)15.48sResponse Time (total)35.70sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)23.94sResponse Time (max)27.39sResponse Time (total)47.88sA test is fully passed only if every run passed for that test.…
23.94sResponse Time (avg)…
104,796Total Input Tokens…
4,741Output Tokens…
19,543Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
8.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
6.9Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
83.3%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Invalid tool call: 1Response Time (avg)30.37sResponse Time (max)37.90sResponse Time (total)60.75sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)3.45sResponse Time (max)3.70sResponse Time (total)6.89sA test is fully passed only if every run passed for that test.…
3.45sResponse Time (avg)…
10,515Total Input Tokens…
312Output Tokens…
1,609Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.96sResponse Time (max)6.16sResponse Time (total)9.92sA test is fully passed only if every run passed for that test.…
5.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
55.6%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Extra formatting: 1Wrong answer: 1Response Time (avg)7.35sResponse Time (max)7.77sResponse Time (total)22.06sA test is fully passed only if every run passed for that test.…
7.35sResponse Time (avg)…
990Total Input Tokens…
64Output Tokens…
9,207Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
2.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
11.1%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 3Response Time (avg)35.33sResponse Time (max)54.91sResponse Time (total)106.00sA test is fully passed only if every run passed for that test.…
4.6Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
9.8Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)1.38sResponse Time (max)1.38sResponse Time (total)1.38sA test is fully passed only if every run passed for that test.…
1.38sResponse Time (avg)…
714Total Input Tokens…
319Output Tokens…
0Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
6.5Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
3.4Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Did not follow instructions: 1Response Time (avg)9.10sResponse Time (max)9.10sResponse Time (total)9.10sA test is fully passed only if every run passed for that test.…
9.8Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)2.20sResponse Time (max)3.24sResponse Time (total)4.40sA test is fully passed only if every run passed for that test.…
2.20sResponse Time (avg)…
921Total Input Tokens…
94Output Tokens…
515Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.58sResponse Time (max)4.79sResponse Time (total)9.15sA test is fully passed only if every run passed for that test.…
7.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Did not follow instructions: 1Response Time (avg)2.76sResponse Time (max)3.28sResponse Time (total)8.28sA test is fully passed only if every run passed for that test.…
2.76sResponse Time (avg)…
912Total Input Tokens…
611Output Tokens…
1,783Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.88sResponse Time (max)5.32sResponse Time (total)14.63sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.19sResponse Time (max)4.19sResponse Time (total)4.19sA test is fully passed only if every run passed for that test.…
4.19sResponse Time (avg)…
11,757Total Input Tokens…
354Output Tokens…
459Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)10.29sResponse Time (max)10.29sResponse Time (total)10.29sA test is fully passed only if every run passed for that test.…
3.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No answer: 1Response Time (avg)2.70sResponse Time (max)2.70sResponse Time (total)2.70sA test is fully passed only if every run passed for that test.…
2.70sResponse Time (avg)…
264Total Input Tokens…
172Output Tokens…
953Reasoning Tokens…
Claude Sonnet 5.5Archived model: this model is no longer updated or tested on new tests.
3.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No answer: 1Response Time (avg)17.31sResponse Time (max)17.31sResponse Time (total)17.31sA test is fully passed only if every run passed for that test.…