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Claude Sonnet 5 vs gpt-oss-120b (medium)

The average score is effectively tied at 6.1 vs 6.1. gpt-oss-120b (medium) has the lower benchmark cost at $0.020 vs $0.548. Claude Sonnet 5 is faster at 6.05s vs 20.81s, with pass rates of 40.9% vs 50.0%.

Last updated at: 2026-08-29

Rank
#170
Total Output Tokens
22,508
Response Time (avg)
6.05s
Total Cost
$0.548
Rank
#173
Total Output Tokens
98,282
Response Time (avg)
20.81s
Total Cost
$0.020
Recommended model gpt-oss-120b (medium)

It has the best score here (6.1), while costing about 28.8x less than Claude Sonnet 5.

Detailed comparison

Metric Claude Sonnet 5 Claude Sonnet 5 none Release: 2026-06-30 gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05
Score 6.1 6.1
Rank #170 #173
Reliability 10.0 10.0
Consistency 8.7 8.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 40.9% 50.0%
Flaky tests 4 5
Total Runs 66 66
Cost per result 7.817 0.224
Total Cost $0.548 $0.020
Input Price $2.000 / 1M $0.037 / 1M
Output Price $10.000 / 1M $0.170 / 1M
Total Input Tokens 161,032 108,767
Output Tokens 22,508 29,378
Reasoning Tokens 0 68,904
Response Time (avg) 6.05s 20.81s
Response Time (max) 33.39s 68.16s
Response Time (total) 132.99s 332.88s
Parameters ~1T total (~100B active) 117B total (5.1B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#170 Claude Sonnet 5

none
Cost
$0.061
Time
53.7s
Tokens
6,172 tok

#173 gpt-oss-120b

medium
Cost
$0.001
Time
26.7s
Tokens
555 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 4.6 7.9 22.2% 1 3.67s 10,590 1,864 0
gpt-oss-120b 5.9 7.0 55.6% 1 38.37s 7,782 3,365 11,973

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