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Claude Sonnet 5.5 (max) vs GPT-5.5 (medium)

The average score is effectively tied at 9.2 vs 9.2. GPT-5.5 (medium) has the lower benchmark cost at $4.809 vs $8.557. GPT-5.5 (medium) is faster at 39.86s vs 84.26s, with pass rates of 82.6% vs 88.4%.

Last updated at: 2026-11-13

Compared models

Rank
#44
Total Output Tokens
758,707
Response Time (avg)
84.26s
Total Cost
$8.557
Rank
#43
Total Output Tokens
130,107
Response Time (avg)
39.86s
Total Cost
$4.809
Recommended model GPT-5.5 (medium)

It has the best score here (9.2), while costing about 1.8x less than Claude Sonnet 5.5 (max).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 max Release: 2026-09-29 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 9.2 9.2
Rank #44 #43
Reliability 10.0 10.0
Consistency 9.4 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 82.6% 88.4%
Flaky tests 2 3
Total Runs 69 69
Cost per result 47.536 25.306
Total Cost $8.557 $4.809
Input Price $2.000 / 1M $5.000 / 1M
Output Price $10.000 / 1M $30.000 / 1M
Cache Read Price $0.200 / 1M $0.500 / 1M
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 484,627 180,959
Output Tokens 11,026 6,472
Reasoning Tokens 747,681 123,635
Response Time (avg) 84.26s 39.86s
Response Time (max) 488.39s 332.10s
Response Time (total) 1937.91s 916.82s
Parameters ~1T total (~100B 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.

#44 Claude Sonnet 5.5

max
OpenRouter returned no showcase content (finish_reason: length).
Cost
$0.000
Time
571.7s
Tokens
0 tok

#43 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 Sonnet 5.5 10.0 10.0 100.0% 0 55.26s 10,608 580 70,730
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

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