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Hermes 4 70B

70B

by Nous

Hermes 4 70B is a hybrid reasoning model from Nous Research, built on Meta-Llama-3.1-70B. It introduces the same hybrid mode as the larger 405B release, allowing the model to either respond directly or generate explicit <think>...</think> reasoning traces before answering. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. It supports JSON mode, schema adherence, function calling, and tool use, and is designed for greater steerability with reduced refusal rates.

Chat with Hermes 4 70B
Input Price$0.13/1M tokens
Output Price$0.40/1M tokens
Intelligence12.4
Coding9.2

Specifications

Technical details and pricing.

ProviderNous
Context Window131,072 tokens
Release DateAug 27, 2025
ModalitiesText

Benchmarks

10 benchmark scores from Artificial Analysis.

GPQA49.1%
MMLU Pro66.4%
HLE3.6%
LiveCodeBench26.9%
AIME 202511.3%
SciCode27.7%
LCR2.0%
IFBench29.0%
Tau221.6%
TerminalBench Hard0.0%

Composite Indices

Intelligence, Coding, Math

Standard Benchmarks

Academic and industry benchmarks

Frequently Asked Questions

What is Hermes 4 70B good for?

Use Hermes 4 70B for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does Hermes 4 70B cost?

Pricing is based on usage. Current rates are $0.13/1M tokens for input and $0.40/1M tokens for output.

Can I try Hermes 4 70B for free?

Yes. You can start a chat instantly and test the model before deciding on a plan.

Does Hermes 4 70B support images or audio?

Hermes 4 70B focuses on text-based tasks.

Benchmarks and pricing are sourced from Artificial Analysis where available. OpenRouter specs are used as a fallback.