Claude Opus 5 is Anthropic’s high-end Claude model, positioned for long-running, multi-step work such as agentic coding, deep reasoning, and enterprise tasks. It has a 1M-token context window, thinking on by default, and a “fast mode” option for higher-speed output; It improves on long-horizon tasks, tool use, code review, and document/spreadsheet work.

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Claude Opus 5

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Gemini 3.6 Flash is Google’s fast, lower-cost Flash model in the Gemini family, aimed at real-world production tasks where speed, long context, and strong multimodal handling matter. Google describes it as suited for agentic workflows, code generation, spatial reasoning, and rapid coding iterations, with support for text, image, video, audio, and PDF inputs and text output. 

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Gemini 3.6 Flash

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GPT‑5.6 Sol is OpenAI’s flagship large language model in the GPT‑5.6 family, designed for high‑end reasoning, coding, science, and cybersecurity tasks, with stronger safety and autonomy controls than earlier GPT versions.

GPT‑5.6 Sol is OpenAI’s flagship large language model in the GPT‑5.6 family. Try GPT‑5.6 Sol for free on HIX AI now!

GPT-5.6 Sol

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Gemini 3.5 Flash is Google’s fast, lower-cost AI model in the Gemini 3 family, designed to deliver strong reasoning and coding performance with Flash-level speed. It is also multimodal, meaning it can work with text, images, audio, video, and PDF inputs, and it’s aimed at agentic workflows and long-context tasks.

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Gemini 3.5 Flash

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Claude Opus 4.8 is an upgraded AI model that delivers sharper judgment and enhanced reliability across coding and agentic tasks. It is more honest, making it less likely to let flaws in its code pass unremarked while proactively flagging uncertainties.       


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Claude Opus 4.8

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GPT-5.5 is OpenAI's smarter and faster GPT model for complex work like coding, research, data analysis, and agentic multi-step tasks. It's designed to understand goals sooner, ask for less guidance, use tools better, and keep checking its work until tasks are finished.

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GPT-5.5

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OpenAI’s GPT-5.6 Terra is engineered specifically for highly efficient daily operations, making it the premier choice for developers and business professionals alike. It seamlessly tackles a wide array of professional and business tasks, from large-scale content generation and editing to routine coding assistance and workflow automation.

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GPT-5.6 Terra

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GPT-5.6 Luna is OpenAI’s most cost-efficient model within the GPT-5.6 family, engineered to provide frontier intelligence at a budget-friendly price point. It outperforms competing frontier models at a mere fraction of their operational costs.

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GPT-5.6 Luna

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As a superior and versatile AI chatbot powered by GPT-3.5/4/4o, HIX Chat works as a better alternative to ChatGPT but is free to try without login. It can get access to online resources, chat with documents and URLs, and generate accurate, useful, and personalized content about any topic instantly.

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HIX Chat

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ChatGPT is a powerful language model and AI chatbot developed by OpenAI and released on November 30, 2022. It's designed to generate human-like text based on the prompts it receives, enabling it to engage in detailed and nuanced conversations. ChatGPT has a wide range of applications, from drafting emails and writing code to tutoring in various subjects and translating languages. 

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GPT-4o mini is a smaller version of OpenAI's flagship GPT-4o mode. It excels in reasoning tasks involving both text and vision, outperforming competitors like Gemini 1.5 Flash and Claude 3 Haiku. It has a more cost-efficient pricing than GPT-3.5.

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GPT-4o mini

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GPT-4o (the "o" means "omni") is a state-of-the-art multimodal large language model developed by OpenAI and released on May 13, 2024. It builds upon the success of the GPT family of models and introduces several advancements in comprehensively understanding and generating content across different modalities. It can natively understand and generate text, images, and audio, enabling more intuitive and interactive user experiences.

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GPT-4o

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GPT-4.1 Mini is a mid-sized variant in OpenAI's GPT-4.1 family of large language models, designed to offer a strong balance of performance, speed, and cost-efficiency. It delivers performance that matches or even exceeds the previous GPT-4o model on many benchmarks, including instruction following and vision-related tasks such as interpreting charts and diagrams.

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GPT-4.1 mini

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GPT-4.1 is an advanced large language model family in OpenAI's GPT series, officially released on April 14, 2025. It represents a significant evolution over previous GPT-4 era models, with major improvements in coding ability, instruction following, and long-context understanding.

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GPT-4.1

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OpenAI o4-mini is a smaller, highly efficient generative pre-trained transformer (GPT) model released by OpenAI on April 16, 2025. It is designed to deliver fast, cost-effective reasoning with remarkable performance, especially in math, coding, and visual tasks such as analyzing images, sketches, and diagrams.

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OpenAI o4-mini

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OpenAI o3-mini is a smaller and more efficient version of the OpenAI o3 model, which is a new series of reasoning models developed by OpenAI. It is designed to spend more time thinking before responding to complex tasks and problems in science, coding, and math. 

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OpenAI o3-mini

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OpenAI o3 is OpenAI's most advanced reasoning large language model released in April 2025, designed to excel at complex tasks across multiple domains such as coding, mathematics, science, and visual perception. It is a successor to the earlier OpenAI o1 model and represents a significant leap in AI capabilities, particularly in logical reasoning and multi-step problem-solving.

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OpenAI o3

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GPT-5 nano is the smallest and fastest variant of the GPT-5 series released by OpenAI, optimized for ultra-low latency and efficiency in high-demand or budget-sensitive applications. It supports rich question-and-answer capabilities and is designed for speed and cost efficiency, making it suitable for mobile, embedded, or latency-sensitive deployments.

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GPT-5 nano

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GPT-5 mini is a smaller, faster, and more cost-efficient version of the main GPT-5 model, designed especially for well-defined, lighter-weight reasoning tasks and cost-sensitive applications. It offers reduced latency and resource usage compared to the full GPT-5 model, making it suitable for less complex queries.

GPT-5 mini is a smaller, faster, and more cost-efficient version of the main GPT-5 model. Try GPT-5 mini on HIX AI for free with no signup required.

GPT-5 mini

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GPT-5 is OpenAI's advanced large language model, officially released on August 7, 2025. It is designed to unify advanced reasoning, multimodal inputs (text, images, voice), and task execution into a single powerful system, which significantly improves accuracy, especially in complex multi-step workflows and factual domains while reducing hallucinations compared to prior versions.

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GPT-5

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GPT-5.1 is OpenAI’s new update to the GPT-5 family, announced in November 2025. It was designed to balance speed and deep reasoning, along with improved tone control and better alignment for more natural, reliable conversations.

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GPT-5.1

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GPT-5.2 is OpenAI's latest AI model family, released on December 11, 2025, designed for advanced professional knowledge work, writing code, and handling multi-step projects.​

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GPT-5.2

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GPT-5.3-Codex is OpenAI's advanced agentic coding model that combines top-tier software engineering ability with strong general reasoning and professional knowledge work skills.

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GPT-5.3-Codex

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GPT-5.4 is designed to unify advances in three areas: enhanced logical reasoning, more capable code generation/execution, and robust agentic workflows where the model can plan and carry out multi‑step tasks over long sessions.

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GPT-5.4

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GPT-5.4 Pro is a high‑end variant of OpenAI’s GPT-5.4 model, optimized for difficult, professional‑grade tasks where depth and accuracy matter more than speed.

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GPT-5.4 Pro

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Anthropic’s Claude is a family of advanced, safety-focused AI language models renowned for their hybrid reasoning and massive context windows. It is designed to provide a solid option for users seeking powerful coding and processing capabilities.

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Claude Haiku 4.5 is a highly efficient AI model developed by Anthropic. It is designed to deliver near-frontier intelligence comparable to Anthropic's more advanced Claude Sonnet 4 model but at a significantly lower cost and much faster speed—about one-third the cost and more than twice as fast. Claude Haiku 4.5 excels in coding, computer use, and agent orchestration tasks.

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Claude Haiku 4.5

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Claude Sonnet 4.5 is one of Anthropic's Claude Sonnet models released on Sep 29, 2025. It excels in building complex AI agents, long-running tasks, and computer use, with advanced capabilities in coding, finance, cybersecurity, and more. The model supports extensive reasoning, large context windows (up to 200K tokens), and superior instruction following. It enables continuous operation for hours on complex tasks, uses parallel tool calls efficiently, and has enhanced domain knowledge and reasoning skills in specialized fields. 

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Claude Sonnet 4.5

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Claude Opus 4.5 is excellent for complex reasoning, coding, and advanced agent workflows. It’s meant for power users like professional developers and knowledge workers who need high reliability on hard tasks.

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Claude Opus 4.5

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Claude Opus 4.6 is an advanced model from Anthropic, released on February 5, 2026. It was released as the flagship of the "Claude 4.6" generation, specifically designed for high-stakes enterprise work, complex coding, and autonomous "agentic" tasks. It significantly improves upon the previous Opus 4.5 (released in late 2025) by doubling down on long-horizon reasoning and specialized tool use.

Claude Opus 4.6 is an advanced model released as the flagship of the "Claude 4.6" generation. Try Claude Opus 4.6 for free at HIX AI!

Claude Opus 4.6

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Claude Sonnet 4.6 is the latest mid-tier AI model from Anthropic. It is designed to provide frontier-level intelligence—often rivaling the performance of top-tier models like Claude Opus—while maintaining the speed and cost-efficiency typical of the Sonnet series.

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Claude Sonnet 4.6

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Claude Opus 4.7 was released by Anthropic on April 16, 2026, designed for the most demanding AI tasks. This model is best for tasks that require precise attention to instructions, self-verification, and sustained coherent reasoning across extended sessions.

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Claude Opus 4.7

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Gemini is Google’s flagship multimodal AI model to seamlessly understand, operate across text, images, audio and video. It is deeply integrated throughout the entire Google product landscape, powering advanced agentic assistance.

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Gemini AI Free - Chat with Google Gemini with No Login | HIX AI

Gemini 2.5 Flash is a state-of-the-art multimodal AI model developed by Google DeepMind, designed for speed, scale, and affordability in real-time applications. It is part of the Gemini 2.5 family of models and represents a significant upgrade over its predecessor, Gemini 2.0 Flash, particularly in reasoning capabilities and efficiency.

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Gemini 2.5 Flash

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Gemini 2.5 Pro is Google's advanced AI model designed specifically for complex and reasoning-intensive tasks. It is a "thinking model" that integrates advanced reasoning capabilities as a core function rather than as an add-on, enabling it to analyze, reason, and solve problems with greater depth and accuracy than previous Gemini models.

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Gemini 2.5 Pro

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Gemini 3 Flash is a Gemini-family AI model that combines high-level frontier intelligence with very fast, low‑cost responses, especially for coding, multimodal understanding, and agent-style tasks. It is designed to give performance similar to larger, more expensive models while staying optimized for latency and price in both consumer products and developer tools.

Gemini 3 Flash is a Gemini-family AI model that combines high-level frontier intelligence with very fast, low‑cost responses. Try Gemini 3 Flash on HIX AI now!

Gemini 3 Flash

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Released on February 19, 2026, Gemini 3.1 Pro is a "frontier" reasoning model from Google. It is a mid-generation update to the Gemini 3 series, specifically engineered to bridge the gap between high-speed performance and deep, doctoral-level reasoning.

Gemini 3.1 Pro is a "frontier" reasoning model from Google. Try the enhanced reasoning capabilities of this model at HIX AI!

Gemini 3.1 Pro

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Discover the wide range of language models you can access on HIX AI. Experience the powers of different language models freely and find the perfect model for your needs today.

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