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Anthropic: Claude Opus 4.8 vs MoonshotAI: Kimi K2.7 Code

Summary

Claude Opus 4.8 vs Kimi K2.7 Code benchmark comparison: Claude Opus 4.8 leads on average score with 7.2 vs 7.0. Claude Opus 4.8 has the lower benchmark cost at $0.539 vs $0.669. Claude Opus 4.8 is faster at 3.47s vs 83.60s, with pass rates of 61.9% vs 66.7%.

Recommended model: Claude Opus 4.8 - It has the best score here (7.2), while responding about 24.1x faster than Kimi K2.7 Code.

Last updated at: 2026-06-12

Metric Claude Opus 4.8 Claude Opus 4.8 none Release: 2026-05-28 Kimi K2.7 Code Kimi K2.7 Code medium Release: 2026-06-12
Score 7.2 7.0
Rank #59 #65
Reliability 10.0 9.2
Consistency 9.2 7.7
Tests Correct
Attempt pass rate 61.9% 66.7%
Flaky tests 2 6
Total Runs 63 63
Cost per result 4.485 6.074
Total Cost $0.539 $0.669
Input Price $5.000 / 1M $0.950 / 1M
Output Price $25.000 / 1M $4.000 / 1M
Total Input Tokens 67,104 25,991
Output Tokens 8,107 80,516
Reasoning Tokens 0 161,391
Response Time (avg) 3.47s 83.60s
Response Time (max) 17.73s 365.80s
Response Time (total) 72.90s 1671.99s

Generation showcase

Hamster playing table tennis

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

#59 Claude Opus 4.8

none
Cost
$0.053
Time
22.0s
Tokens
2,253 tok

#65 MoonshotAI: Kimi K2.7 Code

medium
Cost
$0.025
Time
138.0s
Tokens
6,093 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 6.5 10.0 50.0% 0 3.40s 834 1,472 0
Kimi K2.7 Code 7.3 5.8 83.3% 2 11.56s 618 3,048 5,041
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 5.5 10.0 33.3% 0 3.29s 10,590 1,332 0
Kimi K2.7 Code 7.6 7.2 77.8% 1 146.73s 4,650 1,864 25,635
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 9.5 10.0 100.0% 0 17.73s 29,658 3,259 0
Kimi K2.7 Code 4.7 1.6 66.7% 1 34.83s 11,271 444 3,906
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 7.3 5.8 83.3% 1 1.77s 10,503 308 0
Kimi K2.7 Code 10.0 10.0 100.0% 0 12.27s 7,014 248 2,569
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 5.3 7.2 44.4% 1 1.66s 975 61 0
Kimi K2.7 Code 5.3 7.2 44.4% 1 213.29s 431 55,572 63,639
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 3.48s 708 230 0
Kimi K2.7 Code 10.0 10.0 100.0% 0 10.78s 477 1,024 1,071
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 9.9 10.0 100.0% 0 1.37s 909 95 0
Kimi K2.7 Code 9.9 10.0 100.0% 0 5.39s 669 725 1,232
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 7.7 10.0 66.7% 0 2.74s 894 783 0
Kimi K2.7 Code 5.9 7.7 44.4% 1 41.00s 651 15,438 17,368
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 5.35s 11,775 355 0
Kimi K2.7 Code 3.0 10.0 0.0% 0 0ms 0 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 3.0 10.0 0.0% 0 3.41s 258 212 0
Kimi K2.7 Code 3.0 10.0 0.0% 0 341.76s 210 2,153 40,930

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