Nous

Hermes 3 405B Instruct

nousresearch/hermes-3-llama-3.1-405b
Model weightsReleased Aug 16, 2024Open Weights
open weights

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...

Cost / 1M tokens

Low usage

$1.00

input

—

cached input

$1.00

output

Context Window

131K

Up to 16K max output

Modalities

text → text

Llama3 tokenizer

Quickstart & API

nousresearch/hermes-3-llama-3.1-405b
Open the model picker in ChatOSS Desktop (Code, Kanban, or Chat) and select or paste this model ID.

Best for & Strengths

Key Strengths

Open weights

Recommended Workloads in ChatOSS

  • Open-source AI workflows
Available in ChatOSS Code, Kanban Orchestrate, and Chat modes via Plus, Max, or BYOK.

Active Provider Endpoints (1)

Upstream inference providers serving Hermes 3 405B Instruct, with per-provider pricing, context limits, quantization, and 24-hour uptime.

ProviderInput / 1MOutput / 1MCache Read / 1MContextMax OutputQuantizationUptime (24h)
DeepInfra
deepinfra/fp8
$1.00$1.00—131K16Kfp8100.0%

Supported API Parameters

Parameters accepted by this model when called through ChatOSS or OpenRouter.

frequency_penaltylogit_biasmax_tokensmin_ppresence_penaltyrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetop_ktop_p

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