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Claude Opus 5 (high) vs Seed 2.1 Turbo (low)

Claude Opus 5 (high) leads on average score with 9.4 vs 9.3. Seed 2.1 Turbo (low) has the lower benchmark cost at $1.645 vs $4.524. Claude Opus 5 (high) is faster at 25.31s vs 161.25s, with pass rates of 82.6% vs 81.2%.

Last updated at: 2026-11-10

Compared models

Rank
#31
Total Output Tokens
105,662
Response Time (avg)
25.31s
Total Cost
$4.524
Rank
#35
Total Output Tokens
609,333
Response Time (avg)
161.25s
Total Cost
$1.645
Recommended model Claude Opus 5 (high)

It has the best score here (9.4), while responding about 6.4x faster than Seed 2.1 Turbo (low).

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 high Release: 2026-07-25 Seed 2.1 Turbo Seed 2.1 Turbo low Release: 2026-08-12
Score 9.4 9.3
Rank #31 #35
Reliability 10.0 10.0
Consistency 10.0 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 82.6% 81.2%
Flaky tests 0 2
Total Runs 69 69
Cost per result 23.809 9.135
Total Cost $4.524 $1.645
Input Price $5.000 / 1M $0.500 / 1M
Output Price $25.000 / 1M $2.500 / 1M
Cache Read Price $0.500 / 1M N/A
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 376,421 241,855
Output Tokens 67,688 8,387
Reasoning Tokens 37,974 600,946
Response Time (avg) 25.31s 161.25s
Response Time (max) 159.01s 739.98s
Response Time (total) 582.11s 3708.70s
Parameters ~5T total (~500B active) ~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.

#31 Claude Opus 5

high
Cost
$0.265
Time
144.5s
Tokens
10,741 tok

#35 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 Opus 5 10.0 10.0 100.0% 0 12.73s 10,590 7,547 1,721
Seed 2.1 Turbo 10.0 10.0 100.0% 0 360.85s 8,220 385 207,368

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