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What is an AI Context Limit (aka Context Window)?
What is an AI Context Limit (aka Context Window)?

AI Context Limit (aka Context Window) explained

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Written by Precious
Updated over 3 weeks ago

All AI chatbots have the ability to understand the context of a conversation. However, there is only so much these models can “remember” and this is known as the “Context Length” or “Context Window.”

In other words, each AI Model can only process so much of your conversation before it starts to “forget” things.

For example, OpenAI’s GPT-4o model has a context length of 128,000 tokens, which is the equivalent of around 90,000 words. It can only actively process the last 90,000 words of a conversation.

If a conversation extends beyond this 90,000 word context length, GPT-4o will start “forgetting” the earlier parts of the exchange and may produce irrelevant or confusing responses.

Here is a breakdown of each of Magai’s available AI Models and their context length:

Model Name

Context Length

Auto

128K

Claude 3.5 Haiku

200K

Claude 3.5 Sonnet

200K

Claude 3.7 Sonnet

200K

DeepSeek R1

64K

DeepSeek V3

64K

Gemini 2.0 Flash

1M

Gemini 2.0 Pro

2M

Gemini 2.0 Thinking

1M

GPT-4.5

128K

GPT-4o

128K

GPT-4o Mini

128K

Grok 2

131K

Grok 2 Vision

33K

Llama 3.1 405B

131K

Llama 3.2 11B

130K

Llama 3.3 70B

128K

Mistral Large 2411

128K

Nemotron 70B

131K

Nova Lite

300K

Nova Micro

128K

Nova Pro

300K

o1

200K

o1 Mini

128K

o3 Mini

200K

Perplexity Sonar Online

127K

Pixtral Large 2411

128K

Most AI assistants do not notify the user when the context length is exceeded, which can lead to a poor experience.

To address this, our team was careful to craft a subtle and transparent way of indicating where a conversations context is cut off.

We recommend using our Claude AI model which has a context length of 200,000 words to avoid these issues with reaching the AI’s context length limit and having more in-depth conversations.

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