Cogito v2.1 671B MoE represents one of the strongest open models globally, matching performance of frontier closed and open models. This model is trained using self play with reinforcement learning to reach state-of-the-art performance on m…
Model details →Deep Cogito: Cogito v2.1 671B vs Nous: Hermes 4 405B
Nous: Hermes 4 405B wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with <think>...</think> traces or respond direc…
Model details →Side-by-side comparison
| Capability | Deep Cogito: Cogito v2.1 671B | Nous: Hermes 4 405B | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 128K | 131K | 🏆 Nous: Hermes 4 405B |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.25 | $1.00 | 🏆 Nous: Hermes 4 405B |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.25 | $3.00 | 🏆 Deep Cogito: Cogito v2.1 671B |
| Tool / function calling First-class support for emitting structured tool calls. | — | — | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Deep Cogito: Cogito v2.1 671B better than Nous: Hermes 4 405B?
Nous: Hermes 4 405B wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Deep Cogito: Cogito v2.1 671B and Nous: Hermes 4 405B?
Input: $1.25 vs $1.00 per 1M tokens. Output: $1.25 vs $3.00 per 1M tokens.
What context windows do Deep Cogito: Cogito v2.1 671B and Nous: Hermes 4 405B support?
Deep Cogito: Cogito v2.1 671B supports up to 128K tokens. Nous: Hermes 4 405B supports up to 131K tokens.
Do both Deep Cogito: Cogito v2.1 671B and Nous: Hermes 4 405B support tool calling?
Deep Cogito: Cogito v2.1 671B: not advertised. Nous: Hermes 4 405B: not advertised.