Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the board. …
Model details →Nous: Hermes 3 405B Instruct vs OpenAI: GPT-4o Search Preview
Nous: Hermes 3 405B Instruct wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
GPT-4o Search Previewis a specialized model for web search in Chat Completions. It is trained to understand and execute web search queries.
Model details →Side-by-side comparison
| Capability | Nous: Hermes 3 405B Instruct | OpenAI: GPT-4o Search Preview | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 131K | 128K | 🏆 Nous: Hermes 3 405B Instruct |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.00 | $2.50 | 🏆 Nous: Hermes 3 405B Instruct |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.00 | $10.00 | 🏆 Nous: Hermes 3 405B Instruct |
| 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. | — | — | Tie |
Frequently asked questions
Is Nous: Hermes 3 405B Instruct better than OpenAI: GPT-4o Search Preview?
Nous: Hermes 3 405B Instruct wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Nous: Hermes 3 405B Instruct and OpenAI: GPT-4o Search Preview?
Input: $1.00 vs $2.50 per 1M tokens. Output: $1.00 vs $10.00 per 1M tokens.
What context windows do Nous: Hermes 3 405B Instruct and OpenAI: GPT-4o Search Preview support?
Nous: Hermes 3 405B Instruct supports up to 131K tokens. OpenAI: GPT-4o Search Preview supports up to 128K tokens.
Do both Nous: Hermes 3 405B Instruct and OpenAI: GPT-4o Search Preview support tool calling?
Nous: Hermes 3 405B Instruct: not advertised. OpenAI: GPT-4o Search Preview: not advertised.