Head-to-head · Nov 2025 – Nov 2026

GLM 5.2 vs DeepSeek V4 Pro: what 4 developers chose.

263 opinions. 4 developers named a direct preference: GLM 5.2 4–0. Approval is 75% vs 75%.

263 opinions194 developersNov 2025 – Nov 2026Methodology
GLM 5.2
75%
142 opinions · 109 developers
90 days: 82%
VS
DeepSeek V4 Pro
75%
121 opinions · 85 developers
90 days: 67%
Our call

If you want code quality, choose GLM 5.2. If you want cost & pricing, choose DeepSeek V4 Pro. The 4–0 direct split is not a landslide; it is a difference in working style.

Choose GLM 5.2 if you…

  • Code quality matters most (41 positive mentions vs 31)
  • You want the model with more user reports (142 opinions, 109 authors)
  • You weight recent satisfaction (82 approval over 90 days vs 67)

Choose DeepSeek V4 Pro if you…

  • Cost is the deciding factor (55 positive cost mentions vs 30)
  • You want usage-limit headroom (6 positive, 0 negative)
  • You run high-volume side projects on a tight budget
Where each wins

Code quality for GLM 5.2. Cost & pricing for DeepSeek V4 Pro.

Net sentiment per topic: praise minus complaints, as a share of mentions. Positive means more praise than complaints. Hover a dot for the raw counts.

GLM 5.2DeepSeek V4 Pro
TopicMore complaints ← → More praiseNet
Code quality 47 / 41 mentions
+74 / +51
Cost & pricing 35 / 58 mentions
+71 / +90
Reliability 16 / 11 mentions
−12 / −64
Speed 9 / 6 mentions
+33 / +67
Usage limits 4 / 6 mentions
+100 / +100
−100−500+50+100

Net sentiment = praise minus complaints, as a share of each tool's mentions. The dot lanes are only for readability; position is the score.

View data table
TopicGLM 5.2DeepSeek V4 ProMentions
Code quality+74+5147 / 41
Cost & pricing+71+9035 / 58
Reliability-12-6416 / 11
Speed+33+679 / 6
Usage limits+100+1004 / 6
Why developers switched

The same decision, from both sides.

Paraphrased from comments where a developer named a preference or described a switch. Each links to the original.

Picked GLM 5.2 4 developers

They found DeepSeek V4 Pro at Max reasoning consistently worse than GLM 5.2 at the same setting, which they place near Opus 4.8.

HN comment · Jul 15, 2026Read on HN ↗

They said DeepSeek V4 Pro used old libraries and cut corners on a detailed spec, with about 80% implemented wrong.

HN comment · Jul 7, 2026Read on HN ↗

They said GLM 5.2 with max thinking sits between Sonnet 5 and Opus 4.8 and beats DeepSeek.

HN comment · Jul 6, 2026Read on HN ↗

They reported GLM 5.2 outperforming DeepSeek V4 Pro on Elixir work, though they noted DeepSeek's direct discounted pricing is very cost efficient.

HN comment · Jun 29, 2026Read on HN ↗

Picked DeepSeek V4 Pro 0 developers

No explicit switches recorded.

Side by side

The numbers.

MetricGLM 5.2DeepSeek V4 Pro
Approval75%75%
Last 90 days82%67%
Opinions142121
Developers10985
First-hand opinions110104
Direct picks40
TypeModelModel
Made by——
Methodology

How to read this comparison.

Approval is the positive share of opinions that took a side, with the rank based on the lower bound of a 90% confidence interval. Direct picks count comments where a developer explicitly preferred one tool or described switching. Small samples are noisier; check the opinion counts.

Read the full method →