Compare Claude Opus 4 from Anthropic and Hermes 4 405B from Nous Research 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 and Hermes 4 405B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 4, from Anthropic, has a 200,000-token context window and is priced by the provider serving it on OpenRouter.
Hermes 4 405B, from Nous Research, has a 131,072-token context window and is priced at $1/M tokens input, $3/M tokens output on OpenRouter.
| Claude Opus 4 | Hermes 4 405B | |
|---|---|---|
| Input price | Pricing varies by provider | $1/M tokens |
| Output price | Pricing varies by provider | $3/M tokens |
| Context window | 200,000 tokens | 131,072 tokens |
| Intelligence Index | 20.6 | 7.5 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | Not available | 0.35 s |
| Throughput (p50) | Not available | 41.0 tok/s |
Claude Opus 4 has the longer context window at 200,000 tokens, compared with 131,072 tokens for Hermes 4 405B.