Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Model details →Anthropic: Claude Sonnet 5 vs Z.ai: GLM 4.5V
Z.ai: GLM 4.5V wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GLM-4.5V is a vision-language foundation model for multimodal agent applications. Built on a Mixture-of-Experts (MoE) architecture with 106B parameters and 12B activated parameters, it achieves state-of-the-art results in video understandin…
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Sonnet 5 | Z.ai: GLM 4.5V | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 66K | 🏆 Anthropic: Claude Sonnet 5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $0.60 | 🏆 Z.ai: GLM 4.5V |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $10.00 | $1.80 | 🏆 Z.ai: GLM 4.5V |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Sonnet 5 better than Z.ai: GLM 4.5V?
Z.ai: GLM 4.5V wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Sonnet 5 and Z.ai: GLM 4.5V?
Input: $2.00 vs $0.60 per 1M tokens. Output: $10.00 vs $1.80 per 1M tokens.
What context windows do Anthropic: Claude Sonnet 5 and Z.ai: GLM 4.5V support?
Anthropic: Claude Sonnet 5 supports up to 1M tokens. Z.ai: GLM 4.5V supports up to 66K tokens.
Do both Anthropic: Claude Sonnet 5 and Z.ai: GLM 4.5V support tool calling?
Anthropic: Claude Sonnet 5: yes. Z.ai: GLM 4.5V: yes.
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