Nous Research: Hermes 3 70B
Hermes 3 70B is a language model from Nous Research released on Aug 18, 2024. It reads text and writes text, with a 66K token context window and up to 8K tokens per reply.
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It costs $0.70 per million input tokens and $0.70 per million output tokens.
It supports tool calling and structured JSON output, and its weights are open, so you can host it yourself.
4 providers serve it, including NanoGPT, Eden AI and Kilo Gateway. The lowest input price is $0.408 per million tokens at NanoGPT.
- Modalities
- In / out price
- $0.70 / $0.70 per 1M
- Context
- 66K
- Max output
- 8K
- Released
- Aug 18, 2024
- Knowledge cutoff
- Dec 2023
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Hermes 3 70B pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.70 / 1M tokens | |
|---|---|---|
| Output | $0.70 / 1M tokens |
Hermes 3 70B providers
4 providers serve it, including NanoGPT, Eden AI and Kilo Gateway. The lowest input price is $0.408 per million tokens at NanoGPT. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| NanoGPT | $0.408 | $0.408 | $0.204 | 66K | 8K |
| Eden AI | $0.70 | $0.70 | – | 131K | 16K |
| Kilo Gateway | $0.70 | $0.70 | – | 131K | 16K |
| AI/ML API | $0.9628 | $0.9628 | – | 131K | 16K |
What Hermes 3 70B costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Hermes 3 70B through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Temperature
temperature
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Hermes 3 70B questions
How much does the Hermes 3 70B API cost?
$0.70 per million input tokens and $0.70 per million output tokens. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Hermes 3 70B?
65,536 tokens of input, and it can write up to 8,192 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Hermes 3 70B?
4 providers serve it, including NanoGPT, Eden AI and Kilo Gateway. The lowest input price is $0.408 per million tokens at NanoGPT. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Hermes 3 70B support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Hermes 3 70B open source?
Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.
When was Hermes 3 70B released?
Aug 18, 2024, with training data up to Dec 2023.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.