Compare Grok 4.6 from SpaceXAI and Claude Opus 5 from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
| Attribute | Grok 4.6 | Claude Opus 5 |
|---|---|---|
| Input price | $2/M tokens | $5/M tokens |
| Output price | $6/M tokens | $25/M tokens |
| Context window | 500,000 tokens | 1,000,000 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | 76.8 | 78.0 |
| Agentic Index | 53.0 | 56.5 |
| Latency (p50) | 1.73 s | 2.58 s |
| Throughput (p50) | 60.0 tok/s | 65.0 tok/s |
| Provided by | SpaceXAI | Anthropic |
| Model page | Grok 4.6 model details, providers and pricing | Claude Opus 5 model details, providers and pricing |
Benchmark data updated
Claude Opus 5 has the longer context window at 1,000,000 tokens, compared with 500,000 tokens for Grok 4.6.
Claude Opus 5 is faster on OpenRouter, generating a median 65.0 tokens per second compared with 60.0 tokens per second for Grok 4.6.
Claude Opus 5 scores higher on coding, with an Artificial Analysis Coding Index of 78.0 compared with 76.8 for Grok 4.6.