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DeepSeek: DeepSeek V4 Flash vs OpenAI: gpt-oss-120b

Last updated at: 2026-04-24

Metric DeepSeek V4 Flash DeepSeek V4 Flash none Release: 2026-04-24 gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available
Score 5.3 5.8
Rank #89 #76
Consistency 9.1 7.2
Tests Correct
Attempt pass rate 33.3% 51.9%
Flaky tests 2 6
Total Runs 54 54
Cost per result 0.147 0.144
Total Cost $0.008 $0.011
Input Price $0.140 / 1M $0.000 / 1M
Output Price $0.280 / 1M $0.000 / 1M
Output Tokens 4,444 13,493
Reasoning Tokens 0 36,879
Response Time (avg) 29.39s 16.08s
Response Time (max) 111.96s 50.92s
Response Time (total) 529.10s 176.88s

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Score vs Total Cost

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Score vs Response Time (avg)

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Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 3.0 10.0 0.0% 0 20.18s 174 0
gpt-oss-120b 6.7 9.9 50.0% 0 10.21s 3,518 2,177
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.3 10.0 0.0% 0 24.04s 471 0
gpt-oss-120b 4.3 1.1 66.7% 1 26.33s 228 2,549
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.5 2.1 66.7% 1 111.96s 2,664 0
gpt-oss-120b 10.0 10.0 100.0% 0 31.18s 694 5,072
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 23.79s 195 0
gpt-oss-120b 6.4 5.9 66.7% 1 1.98s 241 1,114
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 5.3 10.0 33.3% 0 19.73s 18 0
gpt-oss-120b 2.9 4.4 22.2% 2 50.92s 6,784 20,606
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.2 9.9 0.0% 0 23.74s 67 0
gpt-oss-120b 4.3 10.0 0.0% 0 7.90s 107 387
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.5 10.0 50.0% 0 17.54s 321 0
gpt-oss-120b 9.9 10.0 100.0% 0 7.63s 126 1,799
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 3.1 7.3 11.1% 1 22.96s 207 0
gpt-oss-120b 3.2 4.7 22.2% 2 11.80s 1,508 2,092
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 77.93s 327 0
gpt-oss-120b 9.8 10.0 100.0% 0 6.91s 287 1,083

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