Z.ai: GLM 5.3 Flash — OCR Benchmark Evidence | OpenOCR

Z.ai: GLM 5.3 Flash — benchmark evidence

Quality: 55.00% ±7.96. Measured on 20 pages with 141 rule tests.

Hard-document score 55.0% · no blank-page penalty

Measured 2026-08-29 · olmocr-hard-20/v2

Category	Pass rate
Old scans	61.5%
Scanned math	0.0%
Tables	68.0%
Multi-column	90.5%

The hard-document score is the mean of the four category pass rates. This model has no published clean-document run yet; clean-document scores and latency are not reported. This page summarizes the hard-corpus measurement; per-page hard-corpus transcripts are not displayed here.

Scorer: olmocr-bench-harness/2026-07 + openocr four-category mean (in-repo v3)

Blank page test

Blank page score: 100/100
Penalty applied: 0.0 points

Try 1

Reported no readable text:

“[No visible text in this image — the page appears to be blank.]”

Try 2
Reported no readable text:
```
“[illegible]”
```
Try 3
Reported no readable text:
```
“[illegible]”
```

Benchmark methodology

Z.ai: GLM 5.3 Flash — benchmark evidence

Blank page test

Try 1

Try 2

Try 3