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Renovate Quality Review · AI Benchmarks

GLM vs Claude

Head-to-Head Performance Audit

GLM

GLM

Z.AI

Z AI coding model scoring 94.6% of Claude Opus on SWE-Bench

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Claude

Claude

Anthropic

Anthropic's safety-focused AI assistant for coding, writing, and analysis

Full Audit →

Intelligence Fingerprint

GLM-5.1 (Reasoning)

GLM-5.1 (Reasoning) by Z AI. Optimized for high intelligence.

Claude Opus 4.8 (Adaptive Reasoning, Max Effort)

Claude Opus 4.8 (Adaptive Reasoning, Max Effort) by Anthropic. Optimized for high intelligence.

Competitive Edge

GLM Verdict

Key Strengths

  • 94.6% of Claude coding performance
  • 28% improvement in single update
  • Open-source options
  • Competitive pricing

Limitations

  • China-based service
  • Smaller community
  • Less general capability

Claude Verdict

Key Strengths

  • Zero ads on all tiers including free
  • 1M token context window
  • Lowest hallucination rate in tier
  • Best-in-class for long documents

Limitations

  • No image generation
  • No voice mode
  • Expensive at Max tier

Where to Choose Which?

Select GLM for:

  • Coding tasks
  • Chinese developers
  • Budget-conscious teams
  • SWE-Bench style problems

Select Claude for:

  • Long document analysis
  • Agentic coding
  • Research workflows
  • API integration

Frequently Asked Questions

Is GLM better than Claude?
Based on our benchmark analysis, Claude scores higher on average across key metrics (SWE-Bench, GPQA Diamond, ARC-AGI-2) with a composite average of 84.0% vs 61.0%. However, GLM may still be the better choice depending on your specific use case and budget.
Which is better for coding, GLM or Claude?
Claude scores 87.6% on SWE-Bench Verified compared to GLM's 77.8%. SWE-Bench measures real-world GitHub issue resolution, making it the most reliable coding benchmark. Claude is the stronger choice for developers.
How does GLM pricing compare to Claude?
GLM starts at Free (freemium) while Claude starts at Free (freemium). Both require paid subscriptions for full access.
When should I choose GLM over Claude?
Choose GLM when you need Coding tasks or Chinese developers. Choose Claude when your priority is Long document analysis or Agentic coding. Both tools serve different strengths depending on your workflow.