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Ember-1 (low) vs Qwen3.5 Plus 2026-02-15 (medium)

The average score is effectively tied at 7.5 vs 7.5. Qwen3.5 Plus 2026-02-15 (medium) has the lower benchmark cost at $0.459 vs $0.662. Ember-1 (low) is faster at 30.98s vs 91.76s, with pass rates of 66.7% vs 72.7%.

Last updated at: 2026-09-28

Compared models

Rank
#120
Total Output Tokens
37,467
Response Time (avg)
30.98s
Total Cost
$0.662
Rank
#123
Total Output Tokens
274,709
Response Time (avg)
91.76s
Total Cost
$0.459
Recommended model Ember-1 (low)

It has the best score here (7.5), while responding about 3.0x faster than Qwen3.5 Plus 2026-02-15 (medium).

Detailed comparison

Metric Ember-1 Ember-1 low Release: 2026-09-28 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15
Score 7.5 7.5
Rank #120 #123
Reliability 8.1 10.0
Consistency 8.5 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 66.7% 72.7%
Flaky tests 4 5
Total Runs 66 66
Cost per result 5.085 3.483
Total Cost $0.662 $0.459
Input Price $3.000 / 1M $0.260 / 1M
Output Price $15.000 / 1M $1.560 / 1M
Total Input Tokens 33,011 113,569
Output Tokens 4,780 9,823
Reasoning Tokens 32,687 264,886
Response Time (avg) 30.98s 91.76s
Response Time (max) 93.10s 304.85s
Response Time (total) 681.50s 1376.42s
Parameters ~2.8T total (~104B active) ~397B total (~17B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#120 Ember-1

low
Cost
$0.016
Time
24.2s
Tokens
1,165 tok

#123 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 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 10.0 10.0 100.0% 0 37.91s 8,097 2,518 13,142
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595

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