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Ember-1 vs Hy4 preview (low)

The average score is effectively tied at 5.4 vs 5.4. Ember-1 has the lower benchmark cost at $0.786 vs $1.670. Ember-1 is faster at 22.65s vs 207.21s, with pass rates of 43.5% vs 21.7%.

Last updated at: 2026-10-01

Compared models

Rank
#277
Total Output Tokens
11,832
Response Time (avg)
22.65s
Total Cost
$0.786
Rank
#274
Total Output Tokens
687,477
Response Time (avg)
207.21s
Total Cost
$1.670
Recommended model Ember-1

It has the best score here (5.4), while costing about 2.1x less than Hy4 preview (low).

Detailed comparison

Metric Ember-1 Ember-1 none Release: 2026-09-28 Hy4 preview Hy4 preview low Release: 2026-08-29
Score 5.4 5.4
Rank #277 #274
Reliability 8.8 6.5
Consistency 8.6 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 43.5% 21.7%
Flaky tests 4 4
Total Runs 69 69
Cost per result 9.817 61.455
Total Cost $0.786 $1.670
Input Price $3.000 / 1M $0.751 / 1M
Output Price $15.000 / 1M $2.251 / 1M
Total Input Tokens 202,617 162,180
Output Tokens 11,832 5,030
Reasoning Tokens 0 682,447
Response Time (avg) 22.65s 207.21s
Response Time (max) 93.12s 597.45s
Response Time (total) 520.91s 4765.91s
Parameters ~2.8T total (~104B active) 770B total (49B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#277 Ember-1

none
Cost
$0.156
Time
224.6s
Tokens
10,555 tok

#274 Hy4 preview

low
Provider returned error
Cost
$0.000
Time
1.1s
Tokens
0 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
Ember-1 5.5 10.0 33.3% 0 1.94s 7,485 393 0
Hy4 preview 5.2 8.6 0.0% 0 219.15s 6,110 135 96,407

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