Overview
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...
How Nous: Hermes 4 405B stacks up
Among the 368 chatbots & llms tools in our directory, it ranks #284 of 355 on quality (7.2/10), 9% below the 355-tool average of 8.0, and its $1/1M input-token rate is in the premium end — 37% cheaper than the 345-model average of $1.58/1M.
Weighing quality against cost, Nous: Hermes 4 405B's cost-per-quality-point of $0.14 places it at #239 of 327 for value among chatbots & llms tools.
Nous: Hermes 4 405B in depth
Nous: Hermes 4 405B, built by Nous Research, sits in the chatbots & llms space and is a paid tool starting at $1.00/1M tokens. Our editors rate it 7.2 out of 10 based on capability, ecosystem and value. It handles a context window of 131,072 tokens.
On the feature side, Nous: Hermes 4 405B brings 131,072-token context window, reasoning / chain-of-thought and knowledge cutoff 2024-08-31. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.
Its biggest strength is built-in reasoning (chain-of-thought) mode for harder problems, while the main trade-off to weigh is that no free tier — usage is billed per token. Keep both in mind when deciding whether it fits your workflow.
Nous: Hermes 4 405B is most often chosen for research and writing. If that matches your goals, it's a strong candidate to shortlist.
Key features
- ✓131,072-token context window
- ✓Reasoning / chain-of-thought
- ✓Knowledge cutoff 2024-08-31
Pricing
Pros
- +Built-in reasoning (chain-of-thought) mode for harder problems
Cons
- −No free tier — usage is billed per token
- −Context window of 131,072 tokens is smaller than most current models
- −Text-only: does not accept image input
Who should use Nous: Hermes 4 405B
- →Anyone looking for a chatbots & llms tool from Nous Research.
- →Teams and individuals focused on research and writing.
- →People who value built-in reasoning (chain-of-thought) mode for harder problems.
- →Workflows that need a 131,072 tokens context window.
Who should look elsewhere
- →Anyone who needs a free tier — this tool is paid only.
- →Those for whom no free tier — usage is billed per token is a dealbreaker.
- →Users who can't accept that context window of 131,072 tokens is smaller than most current models.
Best for
10 Best Nous: Hermes 4 405B Alternatives in 2026
Nous: Hermes 4 405B is a strong chatbots & llms tool, but it is not the only option. Whether you are after a lower price, different features or a better fit for your workflow, here are the 10 best alternatives to Nous: Hermes 4 405B, ranked and compared.
Anthropic
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OpenAI
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Google DeepMind
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Gemini 3.7 Flash is a multimodal model from Google for fast agentic workflows, coding, and complex multi-step…
Meta
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Qwen
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Qwen
Qwen3.7 Flash is a vision-language reasoning model from Alibaba. It is suited for multimodal agents, visual coding…
Anthropic
Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing…
Anthropic
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work.
Gemini 3.6 Flash is a high-efficiency model from Google for coding, agentic workflows, and web and app development.
Nous: Hermes 4 405B vs top alternatives
A side-by-side look at how Nous: Hermes 4 405B stacks up against its closest rivals.
| Feature | Nous: Hermes 4 405BNous Research | ClaudeAnthropic | ChatGPTOpenAI | GeminiGoogle DeepMind |
|---|---|---|---|---|
| Quality score | 7.2 / 10 | 9.6 / 10 | 9.5 / 10 | 9.2 / 10 |
| Starting price | $1.00/1M tokens | $20/mo | $20/mo | $20/mo |
| Free tier | No | Yes — Free tier available | Yes — Free tier available | Yes — Free tier available |
| API input price | $1 / 1M tokens | $10 / 1M tokens | $0.1 / 1M tokens | $0.1875 / 1M tokens |
| API output price | $3 / 1M tokens | $50 / 1M tokens | $0.6 / 1M tokens | $0.9375 / 1M tokens |
| Speed | — | Fast | Fast | Fast |
| Context window | 131,072 tokens | 200K tokens | 128K tokens | 1M-2M tokens |
| Categories | Chatbots & LLMs | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing | Chatbots & LLMs, Coding, Writing |
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Frequently asked questions
Q. Is Nous: Hermes 4 405B free?
No — Nous: Hermes 4 405B is a paid tool, starting at $1.00/1M tokens.
Q. How much does Nous: Hermes 4 405B cost?
Nous: Hermes 4 405B starts at $1.00/1M tokens. API usage is around $1 per 1M input tokens and $3 per 1M output tokens.
Q. What is Nous: Hermes 4 405B best for?
Nous: Hermes 4 405B is best suited to research and writing, within the chatbots & llms category.
Q. What are the best Nous: Hermes 4 405B alternatives?
Popular alternatives to Nous: Hermes 4 405B include Claude, ChatGPT, Gemini and Google: Gemini 3.7 Flash (batch). Each trades off price, quality and ecosystem differently.
Q. Is there a free alternative to Nous: Hermes 4 405B?
Yes. Claude, ChatGPT, Gemini offer a free tier, making them good starting points if you want to avoid an upfront subscription.
Q. Why switch from Nous: Hermes 4 405B?
Common reasons include pricing, specific feature gaps (No free tier — usage is billed per token; Context window of 131,072 tokens is smaller than most current models; Text-only: does not accept image input), data-privacy requirements, or simply wanting a tool that fits your stack better.
How we rate AI tools
Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.
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