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Particle-1 vs Step 5 Preview (medium)

Step 5 Preview (medium) leads on average score with 6.1 vs 6.0. Particle-1 has the lower benchmark cost at $0.059 vs $4.136. Particle-1 is faster at 8.61s vs 136.10s, with pass rates of 34.8% vs 53.6%.

Last updated at: 2026-11-10

Compared models

Rank
#312
Total Output Tokens
87,599
Response Time (avg)
8.61s
Total Cost
$0.059
Rank
#307
Total Output Tokens
1,434,621
Response Time (avg)
136.10s
Total Cost
$4.136
Recommended model Particle-1

Its score stays close to the best score here (6.0 vs 6.1), while costing about 71.3x less than Step 5 Preview (medium).

Detailed comparison

Metric Particle-1 Particle-1 none Release: 2026-10-28 Step 5 Preview Step 5 Preview medium Release: 2026-10-09
Score 6.0 6.1
Rank #312 #307
Reliability 10.0 9.6
Consistency 9.4 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 34.8% 53.6%
Flaky tests 2 5
Total Runs 69 69
Cost per result 0.829 41.354
Total Cost $0.059 $4.136
Input Price $0.050 / 1M $1.000 / 1M
Output Price $0.500 / 1M $2.700 / 1M
Cache Read Price $0.003 / 1M $0.050 / 1M
Cache Write Price N/A N/A
Total Input Tokens 284,369 261,842
Output Tokens 87,599 1,434,621
Reasoning Tokens 0 0
Response Time (avg) 8.61s 136.10s
Response Time (max) 107.90s 438.09s
Response Time (total) 198.13s 3130.27s
Parameters ~748B total (~16B active) 600B total (27B 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.

#312 Particle-1

none
Cost
$0.001
Time
8.0s
Tokens
1,715 tok

#307 Step 5 Preview

medium
Cost
$0.042
Time
90.3s
Tokens
15,574 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
Particle-1 5.3 7.9 11.1% 1 36.78s 7,761 73,822 0
Step 5 Preview 2.8 7.2 11.1% 1 363.90s 7,428 546,725 0

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