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Claude Opus 5 vs Qwen3.8 Flash Next (xhigh)

The average score is effectively tied at 7.1 vs 7.1. Qwen3.8 Flash Next (xhigh) has the lower benchmark cost at ~$0.195 vs $2.766. Claude Opus 5 is faster at 10.78s vs 102.66s, with pass rates of 55.1% vs 72.5%.

Last updated at: 2026-10-05

Compared models

Rank
#153
Total Output Tokens
31,386
Response Time (avg)
10.78s
Total Cost
$2.766
Rank
#154
Total Output Tokens
621,056
Response Time (avg)
102.66s
Total Cost
~$0.195
Recommended model Qwen3.8 Flash Next (xhigh)

It has the best score here (7.1), while costing about 14.2x less than Claude Opus 5.

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 none Release: 2026-07-25 Qwen3.8 Flash Next Qwen3.8 Flash Next xhigh Release: 2026-10-04
Score 7.1 7.1
Rank #153 #154
Reliability 10.0 9.9
Consistency 9.6 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 55.1% 72.5%
Flaky tests 1 6
Total Runs 69 69
Cost per result 23.044 ~1.390
Total Cost $2.766 ~$0.195
Input Price $5.000 / 1M N/A
Output Price $25.000 / 1M N/A
Cache Read Price $0.500 / 1M N/A
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 396,120 301,749
Output Tokens 31,386 1,033
Reasoning Tokens 0 620,023
Response Time (avg) 10.78s 102.66s
Response Time (max) 79.61s 674.08s
Response Time (total) 247.96s 2361.10s
Parameters ~5T total (~500B active) 180B total (6B active)
Availability Closed Weights available

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.

#153 Claude Opus 5

none
Cost
$0.271
Time
149.3s
Tokens
10,962 tok

#154 Qwen3.8 Flash Next

xhigh
Cost
~$0.010
Time
333.1s
Tokens
30,654 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 5 5.9 9.7 33.3% 0 5.54s 10,590 2,886 0
Qwen3.8 Flash Next 7.4 7.0 77.8% 1 192.20s 8,235 122 186,070

Quick Compare

Switch Comparison Pair

Claude Opus 5nonevsQwen3.6 27BmediumClaude Opus 5nonevsStep 3.7 FlashlowClaude Opus 5nonevsGLM 5mediumClaude Opus 5nonevsLongCat 2.0mediumQwen3.8 Flash NextxhighvsGLM 5.3 FlashXmediumQwen3.8 Flash NextxhighvsMiMo-V2.6-FlashlowClaude Opus 5nonevsQwen3.7 FlashhighQwen3.8 Flash NextxhighvsMiMo-V2.5mediumClaude Opus 5nonevsGemini 3.8 FlashlowClaude Opus 5nonevsQwen3.8 27BmediumFree AvailableQwen3.8 Flash NextxhighvsStep 3.7 FlashlowQwen3.8 Flash NextxhighvsGLM 5medium