I put GLM 5.2, the open-weight coding model from Z.AI, through four real tasks inside my actual codebase: a codebase architecture audit, a UI redesign, and a 45-minute autonomous bug-hunting session pulling from Sentry and Vercel logs. Total cost: $3.36 for roughly 6 million tokens, a prioritized bug-fix dashboard I’m actually shipping from, and a landing page redesign that matched Chat PRD’s design system on the first try.

What you’ll learn:

What “open-weight” actually means and why it matters for cost and vendor independence
How to connect GLM 5.2 to Cursor and Claude Code
How it performs on codebase exploration and autonomous architecture summarization in a real production Next.js app
Whether GLM 5.2 can match an existing design system
How the model handles a 45-minute long-running autonomous task
Where GLM 5.2 stumbled
The actual cost breakdown

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Brought to you by:

Mercury—Radically different banking loved by over 300K entrepreneurs

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In this episode, we cover:

(00:00) What open-weight models are and why GLM 5.2 is worth testing

(01:38) GLM 5.2 model overview

(04:02) Capabilities and benchmark results

(06:02) How to set up GLM 5.2 in Cursor

(08:37) How to set up GLM 5.2 in Claude Code

(11:04) Live test 1: codebase exploration and architecture audit on ChatPRD

(12:43) Live test 2: generating an HTML architecture and roadmap page

(16:37) Live test 3: redesigning the How I AI landing page in Cursor

(20:57) Live test 4: 45-minute autonomous task, pulling Sentry errors and Vercel logs

(22:35) Where it struggled

(23:49) My verdict on the output

(25:23) Cost breakdown

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Tools referenced:

z.ai: https://z.ai
GLM 5.2: https://z.ai/blog/glm-5.2
OpenRouter: https://openrouter.ai
Cursor: https://cursor.com
Claude Code: https://docs.anthropic.com/en/docs/claude-code
Sentry: https://sentry.io
Vercel: https://vercel.com

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Other references:

SWE-Bench Pro leaderboard (coding benchmark scores referenced in episode): https://www.swebench.com
Frontier Suite and Post-Train Bench (additional benchmarks cited): https://scale.com/leaderboard
Use Claude Code with OpenRouter: https://openrouter.ai/docs/cookbook/coding-agents/claude-code-integration

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Where to find Claire Vo:

ChatPRD: https://www.chatprd.ai/

Website: https://clairevo.com/

LinkedIn: https://www.linkedin.com/in/clairevo/

X: https://x.com/clairevo

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Production and marketing by https://penname.co/. For inquiries about sponsoring the podcast, email jordan@penname.co.

GLM 5.2: why I’m replacing Opus in Claude Code with this new model

How I AI

GLM 5.2: why I’m replacing Opus in Claude Code with this new model