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Claude Sonnet 5.5 (max) vs Seed 2.1 Turbo (low)

Seed 2.1 Turbo (low) leads on average score with 9.1 vs 9.0. Seed 2.1 Turbo (low) has the lower benchmark cost at $1.546 vs $7.545. Claude Sonnet 5.5 (max) is faster at 83.04s vs 163.90s, with pass rates of 81.8% vs 80.3%.

Last updated at: 2026-09-29

Compared models

Rank
#39
Total Output Tokens
727,349
Response Time (avg)
83.04s
Total Cost
$7.545
Rank
#33
Total Output Tokens
597,236
Response Time (avg)
163.90s
Total Cost
$1.546
Recommended model Seed 2.1 Turbo (low)

It has the best score here (9.1), while costing about 4.9x less than Claude Sonnet 5.5 (max).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 max Release: 2026-09-29 Seed 2.1 Turbo Seed 2.1 Turbo low Release: 2026-08-12
Score 9.0 9.1
Rank #39 #33
Reliability 10.0 10.0
Consistency 9.4 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 80.3%
Flaky tests 2 2
Total Runs 66 66
Cost per result 44.380 9.091
Total Cost $7.545 $1.546
Input Price $2.000 / 1M $0.500 / 1M
Output Price $10.000 / 1M $2.500 / 1M
Total Input Tokens 135,496 104,464
Output Tokens 8,153 6,844
Reasoning Tokens 719,196 590,392
Response Time (avg) 83.04s 163.90s
Response Time (max) 488.39s 739.98s
Response Time (total) 1826.84s 3605.87s
Parameters ~1T total (~100B active) ~200B total (~20B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#39 Claude Sonnet 5.5

max
OpenRouter returned no showcase content (finish_reason: length).
Cost
$0.000
Time
571.7s
Tokens
0 tok

#33 Seed 2.1 Turbo

low
Cost
$0.049
Time
298.8s
Tokens
19,730 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 Sonnet 5.5 10.0 10.0 100.0% 0 55.26s 10,608 580 70,730
Seed 2.1 Turbo 10.0 10.0 100.0% 0 360.85s 8,220 385 207,368

Quick Compare

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