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

The average score is effectively tied at 5.9 vs 5.9. gpt-oss-120b (medium) has the lower benchmark cost at $0.030 vs $1.095. Claude Sonnet 5 is faster at 8.60s vs 31.58s, with pass rates of 40.6% vs 47.8%.

Last updated at: 2026-10-19

Compared models

Rank
#292
Total Output Tokens
30,777
Response Time (avg)
8.60s
Total Cost
$1.095
Rank
#289
Total Output Tokens
108,704
Response Time (avg)
31.58s
Total Cost
$0.030
Recommended model gpt-oss-120b (medium)

It has the best score here (5.9), while costing about 37.7x 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 5.9 5.9
Rank #292 #289
Reliability 10.0 10.0
Consistency 8.4 8.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 40.6% 47.8%
Flaky tests 5 5
Total Runs 69 69
Cost per result 15.642 0.335
Total Cost $1.095 $0.030
Input Price $2.000 / 1M $0.037 / 1M
Output Price $10.000 / 1M $0.170 / 1M
Cache Read Price $0.200 / 1M N/A
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 393,560 285,293
Output Tokens 30,466 29,565
Reasoning Tokens 311 89,266
Response Time (avg) 8.60s 31.58s
Response Time (max) 64.73s 203.90s
Response Time (total) 197.73s 536.78s
Parameters ~1T total (~100B active) 117B total (5.1B active)
Availability Closed Open source

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.

#292 Claude Sonnet 5

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

#289 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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