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Claude Opus 5.5 (high) vs GPT-5.6 Sol (high)

GPT-5.6 Sol (high) leads on average score with 9.4 vs 9.3. GPT-5.6 Sol (high) has the lower benchmark cost at $0.446 vs $1.266. GPT-5.6 Sol (high) is faster at 11.48s vs 25.88s, with pass rates of 86.4% vs 89.4%.

Last updated at: 2026-09-23

Compared models

Rank
#21
Total Output Tokens
36,457
Response Time (avg)
25.88s
Total Cost
$1.266
Rank
#17
Total Output Tokens
28,708
Response Time (avg)
11.48s
Total Cost
$0.446
Recommended model GPT-5.6 Sol (high)

It has the best score here (9.4), while costing about 2.8x less than Claude Opus 5.5 (high).

Detailed comparison

Metric Claude Opus 5.5 Claude Opus 5.5 high Release: 2026-09-23 GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09
Score 9.3 9.4
Rank #21 #17
Reliability 10.0 10.0
Consistency 9.3 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 86.4% 89.4%
Flaky tests 2 3
Total Runs 66 66
Cost per result 7.029 6.987
Total Cost $1.266 $0.446
Input Price $4.000 / 1M $2.000 / 1M
Output Price $20.000 / 1M $10.000 / 1M
Total Input Tokens 134,020 79,258
Output Tokens 7,237 4,855
Reasoning Tokens 29,220 23,853
Response Time (avg) 25.88s 11.48s
Response Time (max) 95.95s 54.79s
Response Time (total) 569.33s 252.62s
Parameters ~5T total (~500B active) ~2T total (~150B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#21 Claude Opus 5.5

high
Cost
$0.136
Time
75.6s
Tokens
6,934 tok

#17 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
Claude Opus 5.5 10.0 10.0 100.0% 0 13.44s 10,608 584 5,042
GPT-5.6 Sol 10.0 10.0 100.0% 0 12.52s 7,302 404 5,656

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