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Renovate Quality Review · AI Benchmarks

Claude vs GLM

Head-to-Head Performance Audit

Claude

Claude

Anthropic

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

Full Audit →
GLM

GLM

Z.AI

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

Full Audit →

Intelligence Fingerprint

Claude Opus 4.8 (Adaptive Reasoning, Max Effort)

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

GLM-5.1 (Reasoning)

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

Competitive Edge

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

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

Where to Choose Which?

Select Claude for:

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

Select GLM for:

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

Frequently Asked Questions

Is Claude better than GLM?
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, Claude or GLM?
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 Claude pricing compare to GLM?
Claude starts at Free (freemium) while GLM starts at Free (freemium). Both require paid subscriptions for full access.
When should I choose Claude over GLM?
Choose Claude when you need Long document analysis or Agentic coding. Choose GLM when your priority is Coding tasks or Chinese developers. Both tools serve different strengths depending on your workflow.