Claude Sonnet 4.5 vs GLM 5.2
High-performance model for real-world agents and coding.
Z.ai's frontier reasoning model for long-context agents and software engineering.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Sonnet 4.5 vs GLM 5.2▼
Which is better, Claude Sonnet 4.5 or GLM 5.2?
▼
Based on the Capability Index, GLM 5.2 scores higher (83.4 vs 78.9). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Sonnet 4.5 or GLM 5.2?
▼
GLM 5.2 has a lower blended cost. Claude Sonnet 4.5: $3.00 input / $15.00 output. GLM 5.2: $1.40 input / $4.40 output.
Which has a larger context window, Claude Sonnet 4.5 or GLM 5.2?
▼
Claude Sonnet 4.5 has a larger context window: Claude Sonnet 4.5 supports 1M tokens vs GLM 5.2 at 262K tokens.
Do both Claude Sonnet 4.5 and GLM 5.2 support vision?
▼
Claude Sonnet 4.5 supports vision/image input, but GLM 5.2 does not.
Which has better coding performance, Claude Sonnet 4.5 or GLM 5.2?
▼
GLM 5.2 scores higher on SWE-bench Verified: Claude Sonnet 4.5 resolves 71% vs GLM 5.2 at 79%.
What are the key differences between Claude Sonnet 4.5 and GLM 5.2?
▼
Key differences: GLM 5.2 is significantly cheaper; only Claude Sonnet 4.5 supports vision input. Compare full specs on this page.
Which model should I choose for my use case?
▼
If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Sonnet 4.5 and GLM 5.2 for free on idapt.app to see which performs better for your specific needs.