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Claude Opus 4.8 (medium) vs DeepSeek V4.1 Flash 1017 (max)

The average score is effectively tied at 8.3 vs 8.2. DeepSeek V4.1 Flash 1017 (max) has the lower benchmark cost at $0.757 vs $3.490. Claude Opus 4.8 (medium) is faster at 16.72s vs 78.20s, with pass rates of 82.6% vs 76.8%.

Last updated at: 2026-10-19

Compared models

Rank
#96
Total Output Tokens
67,522
Response Time (avg)
16.72s
Total Cost
$3.490
Rank
#100
Total Output Tokens
1,170,181
Response Time (avg)
78.20s
Total Cost
$0.757
Recommended model DeepSeek V4.1 Flash 1017 (max)

It has the best score here (8.2), while costing about 4.6x less than Claude Opus 4.8 (medium).

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 medium Release: 2026-05-28 DeepSeek V4.1 Flash 1017 DeepSeek V4.1 Flash 1017 max Release: 2026-10-18
Score 8.3 8.2
Rank #96 #100
Reliability 10.0 10.0
Consistency 9.0 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 82.6% 76.8%
Flaky tests 3 5
Total Runs 69 69
Cost per result 20.527 5.041
Total Cost $3.490 $0.757
Input Price $5.000 / 1M $0.150 / 1M
Output Price $25.000 / 1M $0.600 / 1M
Cache Read Price $0.500 / 1M $0.003 / 1M
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 360,294 360,065
Output Tokens 43,441 7,711
Reasoning Tokens 24,401 1,162,470
Response Time (avg) 16.72s 78.20s
Response Time (max) 99.37s 605.14s
Response Time (total) 384.66s 1798.65s
Parameters ~5T total (~500B active) ~748B total (~16B 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.

#96 Claude Opus 4.8

medium
Cost
$0.057
Time
23.1s
Tokens
2,412 tok

#100 DeepSeek V4.1 Flash 1017

max
Cost
$0.018
Time
135.0s
Tokens
35,163 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 Opus 4.8 10.0 10.0 100.0% 0 15.33s 10,590 9,945 1,381
DeepSeek V4.1 Flash 1017 5.6 4.2 66.7% 2 199.23s 7,509 111 475,423

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