Vendor

Nous Research models

3 models with the vendor's list prices per million tokens. None answers on this deployment yet - connect your own provider to route to them.

Models

0 available here

Cheapest (blended)

$0.70

Hermes 3 70B Instruct

Median list price

$1.00

3:1 input to output per 1M tokens

Strongest

Hermes 4 405B

intelligence index 8

Every Nous Research model

Newest first. Prices are the vendor's published rates per million tokens; click a model for the full specification.

Model	Released	Context	Input / 1M	Output / 1M	Intelligence	Capabilities
Hermes 4 405Bnousresearch/hermes-4-405b	Aug 26, 2025	131K	$1.00	$3.00	8	reasoning open weights
Hermes 3 70B Instructnousresearch/hermes-3-llama-3.1-70b	Aug 18, 2024	131K	$0.70	$0.70	7	open weights
Hermes 3 405B Instructnousresearch/hermes-3-llama-3.1-405b	Aug 16, 2024	131K	$1.00	$1.00	7	open weights

Frequently asked

What is the cheapest Nous Research model?: Hermes 3 70B Instruct at $0.70 per 1M input tokens and $0.70 per 1M output tokens (vendor list price).
Which Nous Research model has the largest context window?: Hermes 4 405B accepts 131K tokens of context.
How do I route to Nous Research models with OpenSmartRoute?: Declare a target in targets.yaml with metadata.model set to the catalogue id (for example nousresearch/hermes-4-405b); the router scores it against every other target on cost, quality, latency and your policies for each request.

Route Nous Research with everything else

OpenSmartRoute picks the cheapest model that meets your quality bar per request, so a Nous Research flagship handles hard prompts while small models take the rest. Price a workload or try a routing decision live.

Cost estimator Playground Full catalogue

One of many

Nous Research answers when it is the best answer for the request - and only then.

The prices on this page are the vendor's own list prices. Behind the router they become one column in a scorecard: for every request the candidates from Nous Research are weighed against every other vendor on cost, quality prior, latency and your policy, and the trace records why the winner won. Bring your own Nous Research key or buy by the token here; the decision is the same.

Photo: RDNE Stock project

For the business

What it does for the vendor strategy.

One URL, every vendor
No vendor lock-in
Point your OpenAI-compatible client at one address; add, swap or retire providers in the catalogue without touching application code.
Every vendor side by side
89% less
Lower cost per request
On the 150-prompt benchmark the router spent 89% less than sending every prompt to the reference model, and the judged quality went up, not down.
Read the benchmark
Self-hosting is free
Open source, Apache-2.0
The router is a library, a sidecar or a control plane you can run yourself, so the exit is always open.
What is open

Will this lock us into another vendor?: No. The router is Apache-2.0 open source, your provider keys stay yours, and the API is OpenAI-compatible, so leaving is a change of base URL.
How much can we save on our LLM bill?: On the public benchmark the router saved 89% against sending everything to the reference model. Import last month's provider bill on the bill page and the estimate is computed on your own traffic before you change a line of code.
How do we compare AI gateways and routers?: The compare pages score each product against the same documented capabilities and say when the review was done; the benchmark page shows measured cost and quality, including the cases the router lost.

Model

Released

Context

Input / 1M

Output / 1M

Intelligence

Capabilities

Hermes 4 405Bnousresearch/hermes-4-405b

Aug 26, 2025

131K

$1.00

$3.00

reasoning open weights

Hermes 3 70B Instructnousresearch/hermes-3-llama-3.1-70b

Aug 18, 2024

131K

$0.70

open weights

Hermes 3 405B Instructnousresearch/hermes-3-llama-3.1-405b

Aug 16, 2024

131K

$1.00

open weights

Frequently asked

What is the cheapest Nous Research model?

Hermes 3 70B Instruct at $0.70 per 1M input tokens and $0.70 per 1M output tokens (vendor list price).

Which Nous Research model has the largest context window?

Hermes 4 405B accepts 131K tokens of context.

How do I route to Nous Research models with OpenSmartRoute?

Declare a target in targets.yaml with metadata.model set to the catalogue id (for example nousresearch/hermes-4-405b); the router scores it against every other target on cost, quality, latency and your policies for each request.

Nous Research answers when it is the best answer for the request - and only then.

Nous Research models

Every Nous Research model

Frequently asked

Route Nous Research with everything else

Nous Research answers when it is the best answer for the request - and only then.

What it does for the vendor strategy.

No vendor lock-in

Lower cost per request

Open source, Apache-2.0

Nous Research models

Every Nous Research model

Frequently asked

Route Nous Research with everything else

Nous Research answers when it is the best answer for the request - and only then.

What it does for the vendor strategy.

No vendor lock-in

Lower cost per request

Open source, Apache-2.0