Hermes 4

Hermes 4

Nous Research
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About

GPT-5.1 Instant is a high-performance AI model designed for everyday users that combines speed, responsiveness, and improved conversational warmth. The model uses adaptive reasoning to instantly select how much computation is required for a task, allowing it to deliver fast answers without sacrificing understanding. It emphasizes stronger instruction-following, enabling users to give precise directions and expect consistent compliance. The model also introduces richer personality controls so chat tone can be set to Default, Friendly, Professional, Candid, Quirky, or Efficient, with experiments in deeper voice modulation. Its core value is to make interactions feel more natural and less robotic while preserving high intelligence across writing, coding, analysis, and reasoning. GPT-5.1 Instant routes user requests automatically from the base interface, with the system choosing whether this variant or the deeper “Thinking” model is applied.

About

Hermes 4 is the latest evolution in Nous Research’s line of neutrally aligned, steerable foundational models, featuring novel hybrid reasoners that can dynamically shift between expressive, creative responses and efficient, standard replies based on user prompts. The model is designed to respond to system and user instructions, rather than adhering to any corporate ethics framework, producing interactions that feel more humanistic, less lecturing or sycophantic, and encouraging roleplay and creativity. By incorporating a special tag in prompts, users can trigger deeper, internally token-intensive reasoning when tackling complex problems, while retaining prompt efficiency when such depth isn't required. Trained on a dataset 50 times larger than that of Hermes 3, much of which was synthetically generated using Atropos, Hermes 4 shows significant performance improvements.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Everyday professionals and creators searching for a tool that excels at writing, coding, problem solving and instruction-following with human-friendly responses

Audience

Advanced users and AI developers in need of a tool to balance deep inference capabilities with customizable, context-aware conversational workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1/

Company Information

Nous Research
Founded: 2023
United States
hermes4.nousresearch.com

Alternatives

Claude Opus 4.1

Claude Opus 4.1

Anthropic

Alternatives

Hermes 3

Hermes 3

Nous Research
GPT-5.2

GPT-5.2

OpenAI
GPT-5.1

GPT-5.1

OpenAI

Categories

Categories

Integrations

Amp
Brokk
CSS
Ghost
GitHub Copilot
Go
Google Drive
HTML
Kineto by JetBrains
Kotlin
LaunchLemonade
Microsoft Foundry Models
Node.js
Novelcrafter
OpenAI Codex
OpenRouter
Rust
Verdent
Visual Studio Code
Wazzap AI

Integrations

Amp
Brokk
CSS
Ghost
GitHub Copilot
Go
Google Drive
HTML
Kineto by JetBrains
Kotlin
LaunchLemonade
Microsoft Foundry Models
Node.js
Novelcrafter
OpenAI Codex
OpenRouter
Rust
Verdent
Visual Studio Code
Wazzap AI
Claim GPT-5.1 Instant and update features and information
Claim GPT-5.1 Instant and update features and information
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Claim Hermes 4 and update features and information