Claude Opus 4.1 vs GLM 4.5
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4.1 and GLM 4.5.
Claude Opus 4.1
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...
GLM 4.5
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...
Technical Specifications
| Specification | Claude Opus 4.1 | GLM 4.5 |
|---|---|---|
| Provider | Anthropic | Zhipu AI |
| Context Window | 200,000 tokens | 131,072 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-08-05 | 2025-07-25 |
API Pricing Comparison
Input Price per Million Tokens
Claude Opus 4.1
$15.00
GLM 4.5
$0.60
Output Price per Million Tokens
Claude Opus 4.1
$75.00
GLM 4.5
$2.20
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Opus 4.1 Quirks & Gotchas
No developer gotchas reported.
GLM 4.5 Quirks & Gotchas
No developer gotchas reported.