Side-by-side comparison
Cogito v2.1 671B vs Hermes 4 405B
| Cogito v2.1 671B | Hermes 4 405B | |
|---|---|---|
| Provider | Deep Cogito | Nous |
| Context window Maximum tokens (input + output) the model can process in a single request. Glossary → | 128,000 | 131,072 |
| Capabilities Optional capabilities the model advertises: vision (images), tools (function calling), json_mode (structured output). | json_mode | json_mode |
| Input $ / 1M tokens Cost for tokens you send (prompt + context). Cheaper side highlighted. Glossary → | 1.2500 | 1.0000 |
| Output $ / 1M tokens Cost for tokens the model generates. Output is normally 3–5× pricier than input. Glossary → | 1.2500 | 3.0000 |
Frequently asked questions
Which is cheaper, Cogito v2.1 671B or Hermes 4 405B?
Cogito v2.1 671B is cheaper than Hermes 4 405B on a 50/50 input/output blend by about $0.75 per 1M tokens. Exact savings depend on your input-vs-output ratio — use the cost calculator on this page for a workload-specific estimate.
Which has a larger context window, Cogito v2.1 671B or Hermes 4 405B?
Hermes 4 405B has the larger context window at 131k tokens versus 128k tokens for Cogito v2.1 671B. That means Hermes 4 405B can ingest about 1.0x as much text per request.
What is the difference between Cogito v2.1 671B and Hermes 4 405B?
Cogito v2.1 671B comes from Deep Cogito; Hermes 4 405B comes from Nous. They differ in pricing, context window, and supported capabilities — see the side-by-side table on this page for the exact figures, refreshed nightly.