Compare Claude Opus 4.5 from Anthropic and GLM 4.6 from Z.ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Claude Opus 4.5 and GLM 4.6 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 4.5, from Anthropic, has a 200,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.
GLM 4.6, from Z.ai, has a 204,800-token context window and is priced at $0.43/M tokens input, $1.75/M tokens output on OpenRouter.
| Claude Opus 4.5 | GLM 4.6 | |
|---|---|---|
| Input price | $5/M tokens | $0.43/M tokens |
| Output price | $25/M tokens | $1.75/M tokens |
| Context window | 200,000 tokens | 204,800 tokens |
| Intelligence Index | 29.1 | 14.9 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 2.58 s | 1.29 s |
| Throughput (p50) | 48.0 tok/s | 15.0 tok/s |
GLM 4.6 is cheaper than Claude Opus 4.5 on OpenRouter: GLM 4.6 costs $0.43/M tokens input and $1.75/M tokens output, while Claude Opus 4.5 costs $5/M tokens input and $25/M tokens output.
GLM 4.6 has the longer context window at 204,800 tokens, compared with 200,000 tokens for Claude Opus 4.5.
Claude Opus 4.5 is faster on OpenRouter, generating a median 48.0 tokens per second compared with 15.0 tokens per second for GLM 4.6.