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Claude Opus 4.8 (medium) vs GLM 5.3 FlashX Legal (high)

Claude Opus 4.8 (medium) leads on average score with 8.3 vs 8.2. GLM 5.3 FlashX Legal (high) has the lower benchmark cost at $0.521 vs $3.490. Claude Opus 4.8 (medium) is faster at 16.72s vs 35.19s, with pass rates of 82.6% vs 72.5%.

Last updated at: 2026-11-10

Compared models

Rank
#119
Total Output Tokens
67,522
Response Time (avg)
16.72s
Total Cost
$3.490
Rank
#127
Total Output Tokens
345,985
Response Time (avg)
35.19s
Total Cost
$0.521
Recommended model GLM 5.3 FlashX Legal (high)

Its score stays close to the best score here (8.2 vs 8.3), while costing about 6.7x less than Claude Opus 4.8 (medium).

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 medium Release: 2026-05-28 GLM 5.3 FlashX Legal GLM 5.3 FlashX Legal high Release: 2026-11-02
Score 8.3 8.2
Rank #119 #127
Reliability 10.0 9.7
Consistency 9.0 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 82.6% 72.5%
Flaky tests 3 4
Total Runs 69 69
Cost per result 20.527 3.473
Total Cost $3.490 $0.521
Input Price $5.000 / 1M $0.370 / 1M
Output Price $25.000 / 1M $1.250 / 1M
Cache Read Price $0.500 / 1M $0.075 / 1M
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 360,294 238,713
Output Tokens 43,441 7,034
Reasoning Tokens 24,401 338,951
Response Time (avg) 16.72s 35.19s
Response Time (max) 99.37s 298.81s
Response Time (total) 384.66s 809.47s
Parameters ~5T total (~500B active) ~320B total (~18B active)
Availability Closed Closed

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.

#119 Claude Opus 4.8

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

#127 GLM 5.3 FlashX Legal

high
Cost
$0.018
Time
103.8s
Tokens
13,703 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
GLM 5.3 FlashX Legal 8.2 7.2 88.9% 1 27.50s 7,317 397 31,799

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