GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly...
Model details →Z.ai: GLM 4.5 vs Anthropic: Claude Opus Latest
Z.ai: GLM 4.5 and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
This model always redirects to the latest model in the Claude Opus family.
Model details →Side-by-side comparison
| Capability | Z.ai: GLM 4.5 | Anthropic: Claude Opus Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 131K | 1M | 🏆 Anthropic: Claude Opus Latest |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.60 | $5.00 | 🏆 Z.ai: GLM 4.5 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $2.20 | $25.00 | 🏆 Z.ai: GLM 4.5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Anthropic: Claude Opus Latest |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Z.ai: GLM 4.5 better than Anthropic: Claude Opus Latest?
Z.ai: GLM 4.5 and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Z.ai: GLM 4.5 and Anthropic: Claude Opus Latest?
Input: $0.60 vs $5.00 per 1M tokens. Output: $2.20 vs $25.00 per 1M tokens.
What context windows do Z.ai: GLM 4.5 and Anthropic: Claude Opus Latest support?
Z.ai: GLM 4.5 supports up to 131K tokens. Anthropic: Claude Opus Latest supports up to 1M tokens.
Do both Z.ai: GLM 4.5 and Anthropic: Claude Opus Latest support tool calling?
Z.ai: GLM 4.5: yes. Anthropic: Claude Opus Latest: yes.
Compare Z.ai: GLM 4.5 with other models
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