Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party or user-defined functions are available. This specialized …
Model details →Google: Gemini 3.1 Pro Preview Custom Tools vs Nous: Hermes 4 405B
Google: Gemini 3.1 Pro Preview Custom Tools wins on 3 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 | Google: Gemini 3.1 Pro Preview Custom Tools | Nous: Hermes 4 405B | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 131K | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $1.00 | 🏆 Nous: Hermes 4 405B |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $12.00 | $3.00 | 🏆 Nous: Hermes 4 405B |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Gemini 3.1 Pro Preview Custom Tools better than Nous: Hermes 4 405B?
Google: Gemini 3.1 Pro Preview Custom Tools wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Gemini 3.1 Pro Preview Custom Tools and Nous: Hermes 4 405B?
Input: $2.00 vs $1.00 per 1M tokens. Output: $12.00 vs $3.00 per 1M tokens.
What context windows do Google: Gemini 3.1 Pro Preview Custom Tools and Nous: Hermes 4 405B support?
Google: Gemini 3.1 Pro Preview Custom Tools supports up to 1.0M tokens. Nous: Hermes 4 405B supports up to 131K tokens.
Do both Google: Gemini 3.1 Pro Preview Custom Tools and Nous: Hermes 4 405B support tool calling?
Google: Gemini 3.1 Pro Preview Custom Tools: yes. Nous: Hermes 4 405B: not advertised.