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Seed 2.1 Turbo (low) vs GPT-5.6 Sol (high)

GPT-5.6 Sol (high) leads on average score with 9.5 vs 9.3. GPT-5.6 Sol (high) has the lower benchmark cost at $1.595 vs $1.645. GPT-5.6 Sol (high) is faster at 13.59s vs 161.25s, with pass rates of 81.2% vs 89.9%.

Last updated at: 2026-10-07

Compared models

Rank
#28
Total Output Tokens
609,333
Response Time (avg)
161.25s
Total Cost
$1.645
Rank
#21
Total Output Tokens
32,071
Response Time (avg)
13.59s
Total Cost
$1.595
Recommended model GPT-5.6 Sol (high)

It has the best score here (9.5), while responding about 11.9x faster than Seed 2.1 Turbo (low).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo low Release: 2026-08-12 GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09
Score 9.3 9.5
Rank #28 #21
Reliability 10.0 10.0
Consistency 9.3 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 81.2% 89.9%
Flaky tests 2 3
Total Runs 69 69
Cost per result 9.135 8.020
Total Cost $1.645 $1.595
Input Price $0.500 / 1M $2.000 / 1M
Output Price $2.500 / 1M $10.000 / 1M
Cache Read Price N/A $0.200 / 1M
Cache Write Price N/A $2.500 / 1M
Total Input Tokens 241,855 195,567
Output Tokens 8,387 5,841
Reasoning Tokens 600,946 26,230
Response Time (avg) 161.25s 13.59s
Response Time (max) 739.98s 59.99s
Response Time (total) 3708.70s 312.61s
Parameters ~200B total (~20B active) ~2T total (~150B 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.

#28 Seed 2.1 Turbo

low
Cost
$0.049
Time
298.8s
Tokens
19,730 tok

#21 GPT-5.6 Sol

high
Cost
$0.151
Time
201.9s
Tokens
5,100 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
Seed 2.1 Turbo 10.0 10.0 100.0% 0 360.85s 8,220 385 207,368
GPT-5.6 Sol 10.0 10.0 100.0% 0 12.52s 7,302 404 5,656

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