Anthropic took the Claude large language model series, which it has been developing for a long time, one step further and released Claude 3. Claude 3 large language model managed to surpass its predecessor, Claude 2.1, in skills such as reasoning, maths, language understanding and prompt following. In addition to surpassing its predecessor, the Claude 3 model has also managed to surpass models such as GPT-4 and Gemini.

In this article, we will explore the differences between the Claude 3 model and its predecessor, Claude 2.1, and take a look at what is new.


  • Anthropic has managed to become one of the most popular and useful large language models with its Claude series.
  • Anthropic continued to improve the Claude series and developed a rival model to GPT-4.
  • The Anthropic Claude 3 model has higher performance, accuracy, input diversity and accessibility than its predecessor, Claude 2.1.
  • The Claude 3 model offers twice the large context window compared to its predecessor.
  • If you want to combine the Claude 3 model with advanced AI capabilities, TextCortex AI is designed for you.
  • In addition to its advanced AI features, TextCortex offers a customizable conversational AI and writing assistant called ZenoChat.

Anthropic’s Claude Family

Anthropic, which entered our lives in March 2023 with the Claude large language model, has continued to develop this series until today. As AI technology develops, Anthropic's latest large language model, which keeps up with this development and progress, is Claude 3. The only features that distinguish the Claude large language model series from others are that it has a large context window and generates safe output.

Claude 2.1 Model

When Anthropic Claude first released its series, it was dragging behind the popular LLMs. However, with the announcement of the Claude 2 and then the Claude 2.1 model, Anthropic started to compete with the most popular and advanced large language models. The Claude 2.1 model was of high quality and useful when it was released, with its 100K token context window, safe output generation capabilities, and advanced features.

Claude 3 Model

On March 4, 2024, Anthropic announced the Claude 3 model, which managed to surpass large language models such as GPT-4 and Gemini in benchmarks. Although this model could not surpass the GPT-4 Turbo model, it remained behind by only a small margin. While not outperforming in all benchmarks, the Claude 3 model leads the GPT-4 Turbo model in terms of reasoning. The Claude 3 model stands out with its advanced features, improved capabilities, and larger context window.

How to Access Claude 3?

Claude 3 comes in three different model sizes: Haiku, Sonnet, and Opus. Although the Claude 3 Haiku model is not currently available, the other two models are. You can access Claude 3 Sonnet for free via Anthropic's web chat interface. However, to access the Claude 3 Opus model, you must have a $20 Claude Pro subscription.

How to access claude 3?

You can also access all Claude 3 models via ZenoChat by TextCortex. TextCortex allows you to combine advanced AI features with Claude 3 and boost your productivity.

Claude 3 vs. Claude 2.1: What’s New?

The Claude series has improved reasoning, language understanding, efficiency, performance, input types, accuracy, safe output generation, prompt reading, context window, and multilingualism skills with each new generation, and Claude 3 is no exception. Let's take a closer look at Claude 3's improvements and innovations over Claude 2.1.

Higher Efficiency

The Claude 3 model outperforms the Claude 2.1 model in all benchmarks, promising users high-end efficiency. For example, in the 5-shot test of the multilingual MMLU benchmark, the Claude 2.1 model has a score of 63.4%, while the Claude 3 Opus model has a score of 79.1%.

claude 3 vs claude 2.1

In addition, the Claude 3 model is more efficient than the Claude 2.1 model in tasks such as math, coding, reasoning, and generating safe and accurate output. To make an analogy, the difference between the Claude 2.1 model and the Claude 3 model is similar to the difference between GPT-3.5 and GPT-4. The Claude 3 model can perform all the tasks that the Claude 2.1 model can, but with higher quality.

Visual Input

While the Claude 2.1 model only supports textual input, the Claude 3 model also supports image input. In other words, you cannot analyse documents containing graphics, charts, and tables with the Claude 2.1 model, but you can easily analyse and process these documents with the Claude 3 model.

claude visual input performance


Anthropic uses the human-written and multifactual “100Q Hard” test to measure the accuracy and hallucination responses of the Claude 3 and Claude 2.1 models. According to these test results, Claude 3 models respond to more accurate and non-hallucination outputs than Claude 2.1.

claude AI accuracy


The Claude 3 model is more efficient than Claude 2.1 in all multilingual tasks, including math, reasoning, and language understanding. Moreover, the Claude 3 Sonnet model proved to be much more efficient with an extra score of 9 points compared to the Claude 2.1 model.

claude ai multilingualism

Instruction Following

Thanks to both its multilingual capabilities and advanced language understanding skills, the Claude 3 model is more efficient in analysing user inputs and analysing the user's intent compared to the Claude 2.1 model. The Claude 3 Opus model can respond to the output the user needs by accurately following the prompts given by the user.

claude 3 instruction following

In addition, the Claude 3 model is much more efficient in analysing documents and recalling data than its predecessor, the Claude 2.1 model.

claude 2 vs claude 3


While the Claude 2.1 model is accessible in only 95 countries, the Claude 3 and its model sizes are available in 159 countries. In other words, you can now access Claude 3, one of the most advanced large language models, from 159 countries and use it to reduce your workload and boost your productivity.

Context Window

The Claude 2.1 model was an ideal AI model for completing large-size tasks with its input size of 100K tokens (approximately 75,000 words). Anthropic has taken things one step further and upgraded the context window of the Claude 3 model to 200k tokens. In fact, the Claude 3 Opus model supports a context window of 1 million tokens for specific use cases.

TextCortex AI: All-in-One AI Assistant

If you are looking for a customizable AI assistant that can help you complete your daily or professional tasks with various large language models, including Claude 3, TextCortex is the perfect solution for you. TextCortex is available as a web application and browser extension. The TextCortex browser extension is integrated with 30,000+ websites and apps, so it can always support you wherever and whenever you need it.


TextCortex comes with the conversational AI of your dreams, called ZenoChat. ZenoChat is a customizable AI assistant designed for users to complete tasks such as text generation, paraphrasing, research, and data analysis in a conversational format. ZenoChat will be your companion with five different large language models, advanced text generation capabilities, a web search feature, and customization options.

ZenoChat offers a fully customizable AI experience thanks to our "Individual Personas" and "Knowledge Bases" features. Our "Individual Personas" feature allows you to adjust ZenoChat's output style and personality, while our "Knowledge Bases" feature allows you to upload or connect data sets that ZenoChat will use to generate output.

How to Get Started with TextCortex?

Getting started with TextCortex and its advanced features is a simple process, here is how;

  • Head to the TextCortex website
  • Create your free Account
  • Start using the most capable AI copilot out there

TextCortex offers its users 20 free creations per day. You can experience TextCortex, ZenoChat and Zeno Assistant using these creations, and if you like what you see, you can create a pricing plan that suits your budget and needs with our pay-as-you-go pricing plan.