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Claude Sonnet 5.5 (high) vs Particle-1 (medium)

The average score is effectively tied at 8.6 vs 8.6. Particle-1 (medium) has the lower benchmark cost at $0.217 vs $1.175. Claude Sonnet 5.5 (high) is faster at 10.79s vs 32.30s, with pass rates of 81.2% vs 73.9%.

Last updated at: 2026-11-10

Compared models

Rank
#93
Total Output Tokens
48,293
Response Time (avg)
10.79s
Total Cost
$1.175
Rank
#96
Total Output Tokens
406,465
Response Time (avg)
32.30s
Total Cost
$0.217
Recommended model Particle-1 (medium)

It has the best score here (8.6), while costing about 5.4x less than Claude Sonnet 5.5 (high).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 high Release: 2026-09-29 Particle-1 Particle-1 medium Release: 2026-10-28
Score 8.6 8.6
Rank #93 #96
Reliability 10.0 9.7
Consistency 8.3 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 81.2% 73.9%
Flaky tests 5 5
Total Runs 69 69
Cost per result 7.340 1.546
Total Cost $1.175 $0.217
Input Price $2.000 / 1M $0.050 / 1M
Output Price $10.000 / 1M $0.500 / 1M
Cache Read Price $0.200 / 1M $0.003 / 1M
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 345,687 263,837
Output Tokens 13,550 7,443
Reasoning Tokens 34,743 399,022
Response Time (avg) 10.79s 32.30s
Response Time (max) 51.53s 276.96s
Response Time (total) 248.22s 742.97s
Parameters ~1T total (~100B active) ~748B total (~16B 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.

#93 Claude Sonnet 5.5

high
Cost
$0.088
Time
73.5s
Tokens
8,914 tok

#96 Particle-1

medium
Cost
$0.006
Time
42.2s
Tokens
10,219 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 9.85s 10,608 561 6,326
Particle-1 8.2 7.2 88.9% 1 64.92s 7,986 402 115,089

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