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Claude Haiku 5.5 (low) vs Ember-1 (high)

Claude Haiku 5.5 (low) leads on average score with 8.6 vs 6.9. Claude Haiku 5.5 (low) has the lower benchmark cost at $0.061 vs $2.405. Claude Haiku 5.5 (low) is faster at 7.51s vs 58.14s, with pass rates of 76.8% vs 71.0%.

Last updated at: 2026-10-19

Compared models

Rank
#75
Total Output Tokens
61,650
Response Time (avg)
7.51s
Total Cost
$0.061
Rank
#196
Total Output Tokens
121,223
Response Time (avg)
58.14s
Total Cost
$2.405
Recommended model Claude Haiku 5.5 (low)

It has the best score here (8.6), while costing about 39.8x less than Ember-1 (high).

Detailed comparison

Metric Claude Haiku 5.5 Claude Haiku 5.5 low Release: 2026-10-07 Ember-1 Ember-1 high Release: 2026-09-28
Score 8.6 6.9
Rank #75 #196
Reliability 10.0 8.6
Consistency 8.9 7.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 76.8% 71.0%
Flaky tests 3 8
Total Runs 69 69
Cost per result 0.378 20.041
Total Cost $0.061 $2.405
Input Price $0.100 / 1M $3.000 / 1M
Output Price $0.500 / 1M $15.000 / 1M
Cache Read Price $0.010 / 1M $0.300 / 1M
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 296,301 195,489
Output Tokens 10,672 12,475
Reasoning Tokens 50,978 108,748
Response Time (avg) 7.51s 58.14s
Response Time (max) 44.43s 255.06s
Response Time (total) 172.74s 1337.19s
Parameters ~50B ~2.8T total (~104B 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.

#75 Claude Haiku 5.5

low
Cost
$0.001
Time
7.4s
Tokens
1,851 tok

#196 Ember-1

high
Cost
$0.038
Time
55.1s
Tokens
2,671 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 Haiku 5.5 7.9 7.5 77.8% 1 7.30s 10,608 531 11,618
Ember-1 8.2 7.2 88.9% 1 72.23s 7,144 1,281 23,093

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