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Claude Sonnet 5 (medium) vs DeepSeek V4 Flash 0731 (high)

Claude Sonnet 5 (medium) leads on average score with 8.2 vs 8.0. DeepSeek V4 Flash 0731 (high) has the lower benchmark cost at $0.134 vs $0.922. Claude Sonnet 5 (medium) is faster at 12.54s vs 114.94s, with pass rates of 75.8% vs 75.8%.

Last updated at: 2026-08-20

Rank
#47
Total Output Tokens
63,204
Response Time (avg)
12.54s
Total Cost
$0.922
Rank
#54
Total Output Tokens
513,307
Response Time (avg)
114.94s
Total Cost
$0.134
Recommended model DeepSeek V4 Flash 0731 (high)

Its score stays close to the best score here (8.0 vs 8.2), while costing about 6.9x less than Claude Sonnet 5 (medium).

Detailed comparison

Metric Claude Sonnet 5 Claude Sonnet 5 medium Release: 2026-06-30 DeepSeek V4 Flash 0731 DeepSeek V4 Flash 0731 high Release: 2026-08-01
Score 8.2 8.0
Rank #47 #54
Reliability 10.0 10.0
Consistency 9.0 8.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 75.8% 75.8%
Flaky tests 3 5
Total Runs 66 66
Cost per result 6.144 0.956
Total Cost $0.922 $0.134
Input Price $2.000 / 1M $0.140 / 1M
Output Price $10.000 / 1M $0.280 / 1M
Total Input Tokens 145,953 96,702
Output Tokens 52,330 16,966
Reasoning Tokens 10,874 496,341
Response Time (avg) 12.54s 114.94s
Response Time (max) 66.71s 600.61s
Response Time (total) 275.90s 2528.65s
Parameters ~1T total (~100B active) 284B total (13B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#47 Claude Sonnet 5

medium
Cost
$0.007
Time
6.4s
Tokens
832 tok

#54 DeepSeek V4 Flash 0731

high
Invalid SVG
Cost
$0.000
Time
187.3s
Tokens
19,048 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 9.0 7.9 88.9% 1 17.28s 10,590 13,153 2,379
DeepSeek V4 Flash 0731 6.3 6.3 55.6% 1 252.67s 7,044 2,160 191,210

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