Nous Research

Nous: Hermes 3 405B Instruct

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...

StreamingJSON mode
131.1K token context Released Aug 16, 2024

Intelligence overview

131.1K tok

Context window

16.4K tok

Max output

Capabilities

What Nous: Hermes 3 405B Instruct can do.

Development

Structured output

Returns responses constrained to a JSON schema, ready to parse without cleanup.

Streaming

Streams tokens as they're generated instead of waiting on the full response.

Pricing

Pay for what you use.

Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.

INPUT

$1 / 1M tok

OUTPUT

$1 / 1M tok

Use cases

Built for serious work.

Build

Generate and refactor code, with the ability to return structured, parseable output.

Research

Holds up to 131.1K tokens of source material in context without losing the thread.

Preview

Ask Nous: Hermes 3 405B Instruct anything.

A preview of the real UltraGPT composer — the model you see here is the model you get.

Nous: Hermes 3 405B Instruct Ready

Continues in the UltraGPT app — one login, every model.

Comparison

How Nous: Hermes 3 405B Instruct stacks up.

The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.

Specification

Technical details.

Specification

Context window
131.1K tokens
Max output
16.4K tokens
Input modalities
Text
Output modalities
Text
Knowledge cutoff
Dec 31, 2023
Release date
Aug 16, 2024
Streaming
Supported
Tool calling
Not supported
JSON mode
Supported

Model identity

Provider ID
nousresearch

Model ID

Directory

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This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.

Nous: Hermes 3 405B Instruct, one subscription away.

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