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

The average score is effectively tied at 9.4 vs 9.5. GPT-5.6 Sol (high) has the lower benchmark cost at $1.595 vs $1.733. GPT-5.6 Sol (high) is faster at 13.59s vs 25.68s, with pass rates of 88.4% vs 89.9%.

Last updated at: 2026-10-26

Compared models

Rank
#26
Total Output Tokens
25,006
Response Time (avg)
25.68s
Total Cost
$1.733
Rank
#24
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 1.9x faster than Claude Opus 5.5 (low).

Detailed comparison

Metric Claude Opus 5.5 Claude Opus 5.5 low Release: 2026-09-23 GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09
Score 9.4 9.5
Rank #26 #24
Reliability 10.0 10.0
Consistency 9.3 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 88.4% 89.9%
Flaky tests 2 3
Total Runs 69 69
Cost per result 9.118 8.020
Total Cost $1.733 $1.595
Input Price $4.000 / 1M $2.000 / 1M
Output Price $20.000 / 1M $10.000 / 1M
Cache Read Price $0.200 / 1M $0.200 / 1M
Cache Write Price $5.000 / 1M $2.500 / 1M
Total Input Tokens 308,056 195,567
Output Tokens 9,434 5,841
Reasoning Tokens 15,572 26,230
Response Time (avg) 25.68s 13.59s
Response Time (max) 89.16s 59.99s
Response Time (total) 590.71s 312.61s
Parameters ~5T total (~500B 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.

#26 Claude Opus 5.5

low
Invalid SVG
Cost
$0.038
Time
19.1s
Tokens
2,010 tok

#24 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 12.23s 10,608 575 2,777
GPT-5.6 Sol 10.0 10.0 100.0% 0 12.52s 7,302 404 5,656

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