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Claude Opus 5 (high) vs GPT-5.5 (medium)

Claude Opus 5 (high) leads on average score with 9.4 vs 9.2. Claude Opus 5 (high) has the lower benchmark cost at $4.524 vs $4.809. Claude Opus 5 (high) is faster at 25.31s vs 39.86s, with pass rates of 82.6% vs 88.4%.

Last updated at: 2026-10-19

Compared models

Rank
#27
Total Output Tokens
105,662
Response Time (avg)
25.31s
Total Cost
$4.524
Rank
#33
Total Output Tokens
130,107
Response Time (avg)
39.86s
Total Cost
$4.809
Recommended model Claude Opus 5 (high)

It has the best score here (9.4), while responding about 1.6x faster than GPT-5.5 (medium).

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 high Release: 2026-07-25 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 9.4 9.2
Rank #27 #33
Reliability 10.0 10.0
Consistency 10.0 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 82.6% 88.4%
Flaky tests 0 3
Total Runs 69 69
Cost per result 23.809 25.306
Total Cost $4.524 $4.809
Input Price $5.000 / 1M $5.000 / 1M
Output Price $25.000 / 1M $30.000 / 1M
Cache Read Price $0.500 / 1M $0.500 / 1M
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 376,421 180,959
Output Tokens 67,688 6,472
Reasoning Tokens 37,974 123,635
Response Time (avg) 25.31s 39.86s
Response Time (max) 159.01s 332.10s
Response Time (total) 582.11s 916.82s
Parameters ~5T total (~500B active) ~1.5T total (~100B 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.

#27 Claude Opus 5

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

#33 GPT-5.5

medium
Cost
$0.112
Time
71.9s
Tokens
3,807 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
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

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