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Claude Sonnet 5.5 (max) vs Pareto

Claude Sonnet 5.5 (max) leads on average score with 9.0 vs 8.9. Pareto has the lower benchmark cost at $1.172 vs $7.545. Pareto is faster at 31.51s vs 83.04s, with pass rates of 81.8% vs 86.4%.

Last updated at: 2026-09-29

Compared models

Rank
#39
Total Output Tokens
727,349
Response Time (avg)
83.04s
Total Cost
$7.545
Rank
#45
Total Output Tokens
119,230
Response Time (avg)
31.51s
Total Cost
$1.172
Recommended model Pareto

Its score stays close to the best score here (8.9 vs 9.0), while costing about 6.4x less than Claude Sonnet 5.5 (max).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 max Release: 2026-09-29 Pareto Pareto none Release: 2026-09-18
Score 9.0 8.9
Rank #39 #45
Reliability 10.0 10.0
Consistency 9.4 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 86.4%
Flaky tests 2 2
Total Runs 66 66
Cost per result 44.380 6.506
Total Cost $7.545 $1.172
Input Price $2.000 / 1M $2.500 / 1M
Output Price $10.000 / 1M $7.500 / 1M
Total Input Tokens 135,496 110,734
Output Tokens 8,153 119,230
Reasoning Tokens 719,196 0
Response Time (avg) 83.04s 31.51s
Response Time (max) 488.39s 143.33s
Response Time (total) 1826.84s 693.29s
Parameters ~1T total (~100B active) -
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#39 Claude Sonnet 5.5

max
OpenRouter returned no showcase content (finish_reason: length).
Cost
$0.000
Time
571.7s
Tokens
0 tok

#45 Pareto

none
Cost
$0.034
Time
170.7s
Tokens
4,581 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 Sonnet 5.5 10.0 10.0 100.0% 0 55.26s 10,608 580 70,730
Pareto 10.0 10.0 100.0% 0 50.12s 7,471 1,949 0

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