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Claude Haiku 5.5 (xhigh) vs Seed 2.1 Turbo (high)

The average score is effectively tied at 9.1 vs 9.1. Claude Haiku 5.5 (xhigh) has the lower benchmark cost at $0.140 vs $1.892. Claude Haiku 5.5 (xhigh) is faster at 16.58s vs 170.52s, with pass rates of 81.2% vs 79.7%.

Last updated at: 2026-10-07

Compared models

Rank
#35
Total Output Tokens
199,268
Response Time (avg)
16.58s
Total Cost
$0.140
Rank
#38
Total Output Tokens
707,320
Response Time (avg)
170.52s
Total Cost
$1.892
Recommended model Claude Haiku 5.5 (xhigh)

It has the best score here (9.1), while costing about 13.6x less than Seed 2.1 Turbo (high).

Detailed comparison

Metric Claude Haiku 5.5 Claude Haiku 5.5 xhigh Release: 2026-10-07 Seed 2.1 Turbo Seed 2.1 Turbo high Release: 2026-08-12
Score 9.1 9.1
Rank #35 #38
Reliability 10.0 10.0
Consistency 9.3 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 81.2% 79.7%
Flaky tests 2 3
Total Runs 69 69
Cost per result 0.773 11.129
Total Cost $0.140 $1.892
Input Price $0.100 / 1M $0.500 / 1M
Output Price $0.500 / 1M $2.500 / 1M
Cache Read Price $0.010 / 1M N/A
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 394,509 246,954
Output Tokens 10,349 8,378
Reasoning Tokens 188,919 698,942
Response Time (avg) 16.58s 170.52s
Response Time (max) 92.74s 584.71s
Response Time (total) 381.40s 3922.04s
Parameters ~50B ~200B total (~20B 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.

#35 Claude Haiku 5.5

xhigh
Cost
$0.021
Time
189.0s
Tokens
41,343 tok

#38 Seed 2.1 Turbo

high
Cost
$0.058
Time
355.4s
Tokens
23,053 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 10.0 10.0 100.0% 0 13.13s 10,608 504 26,396
Seed 2.1 Turbo 10.0 10.0 100.0% 0 336.02s 8,220 370 194,578

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