Large Language Models (LLMs)
A large language model, or LLM, is a type of generative AI that has been trained on a massive amount of data, which allows it to “understand” and generate human-like responses based on a set of provided instructions or prompts.

Supported LLMs
HopGPT provides access to a number of LLMs. Each model specializes in certain tasks and behaves slightly differently from the others. We encourage you to experiment with each model to learn the tasks in which each model excels.
Azure OpenAI
Access to OpenAI models is made possible through partner agreement with Microsoft and uses an Azure specific version of the model. For this reason, you may notice subtle differences in results generated within HopGPT compared to those generated through commercially available OpenAI channels.
- Restrictions on Use
- Models
- o3
- o3 mini
- GPT-5.4-nano
- GPT-5.4-mini
- GPT-5.4
- GPT-5.5
Anthropic
Access to Anthropic models is made possible through partner agreement with Amazon Web Services (AWS) and uses an AWS specific version of the model. For this reason, you may notice subtle differences in results generated within HopGPT compared to those generated through commercially available Anthropic channels.
- Restrictions on Use
- Models
- Claude Haiku 4.5
- Claude Sonnet 4.5
- Claude Opus 4.5
Meta
Access to Meta models is made possible through partner agreement with Amazon Web Services (AWS) and uses an AWS specific version of the model. For this reason, you may notice subtle differences in results generated within HopGPT compared to those generated through commercially available Meta channels.
- Restrictions on Use
- Models
- Llama 3.3 70b
- Llama 4 Maverick
Choosing a Model in HopGPT
As a valued HopGPT customer, understanding the range of available large language models (LLMs) is important. This page provides essential information about the different models offered, their strengths, and, for our API customers, how much each costs to use.
Whether you’re looking for advanced reasoning capabilities, creative writing assistance, or coding support, we’re here to help you choose the right option for your specific task. Dive into the details below to guide your decision-making and optimize your use of HopGPT.
Before you explore the table below, it’s important to understand some generative AI terminology:
- Reasoning: This refers to the model’s capability to go beyond mere data processing. It encompasses the ability to make inferences, solve problems, and support decision-making based on the information it analyzes.
- Code: This denotes the model’s proficiency in generating structured code outputs. Examples include programming languages and formats such as HTML, CSS, JSON, or SQL.
- Multimodal: This term describes AI systems that can process and analyze multiple types of data concurrently, using different modalities such as text, images, audio, and video for a more comprehensive understanding. Note: HopGPT does support image, audio, or video generation.
Knowledge Cutoff Date: This is the definitive date up to which the AI model is trained with information. Any developments, events, or data that arise after this date are not incorporated into the model’s knowledge base.
Available LLMs
Available LLMs
| Model | Reasoning | Code | Multimodal | Best for | Knowledge Cutoff Date |
|---|---|---|---|---|---|
| GPT-5.5 (Open AI) | Coding, reasoning, conversation & creative writing | December 2025 | |||
| GPT-5.4 nano (Open AI) | Data extraction, classification & ranking | August 2025 | |||
| GPT-5.4/GPT-5.4 mini (Open AI) | Coding, reasoning, conversation & creative writing | August 2025 | |||
| o3/o3 mini (OpenAI) | Logic & mathematical reasoning | May 2024/ October 2023 |
|||
| Claude Haiku 4.5 (Anthropic) | Summarization & conversations | February 2025 | |||
| Claude Sonnet 4.5 (Anthropic) | Creative writing & coding | January 2025 | |||
| Claude Opus 4.5 (Anthropic) | Coding & reasoning | January 2025 | |||
| Llama 3.3 70b (Meta) | Conversations & creative writing | December 2023 | |||
| Llama 4 Maverick (Meta) | Coding & reasoning | August 2024 |
Model Token Cost Information
While access to these through HopGPT is free, there are real costs associated with use. If you are an API customer or a HopGPT user and seek to reduce your economic impact, please perform a web search to estimate up-to-date model pricing. If you have additional questions, please contact [email protected].